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Backup Documents 03/10/2015 Item #16A17 ORIGINAL DOCUMENTS CHECKLIST & ROUTING SLIP 6 A TO ACCOMPANY ALL ORIGINAL DOCUMENTS SENT TO Al THE BOARD OF COUNTY COMMISSIONERS OFFICE FOR SIGNATURE Print on pink paper. Attach to original document. The completed routing slip and original documents are to be forwarded to the County Attorney Office at the time the item is placed on the agenda. All completed routing slips and original documents must be received in the County Attorney Office no later than Monday preceding the Board meeting. **NEW** ROUTING SLIP Complete routing lines#1 through#2 as appropriate for additional signatures,dates,and/or information needed. If the document is already complete with the exception of the Chairman's signature,draw a line through routing lines#1 through#2,complete the checklist,and forward to the County Attorney Office. Route to Addressee(s) (List in routing order) Office Initials Date 1. County Attorney Office County Attorney Office JAB 3/12/15 2. BCC Office Board of County Commissioners 3. Minutes and Records Clerk of Court's Office ticm PRIMARY CONTACT INFORMATION Normally the primary contact is the person who created/prepared the Executive Summary. Primary contact information is needed in the event one of the addressees above,may need to contact staff for additipnal or missing information. Name of Primary Staff Jennifer A. Bel dio,Assistant County Phone Number 239-252-819 Contact/ Department Attorney* Agenda Date Item was 3/10/15 Agenda Item Number 16A17 Approved by the BCC Type of Document ResolutionNumber of Original 1 Attached 09.1:1‹.- LA I Documents Attached PO number or account number if document is to be recorded INSTRUCTIONS & CHECKLIST Initial the Yes column or mark"N/A"in the Not Applicable column,whichever is Yes N/A(Not appropriate. (Initial) Applicable) 1. Does the document require the chairman's original signature? STAMP IS ACCEPTABLE JAB 2. Does the document need to be sent to another agency for additional signatures? If yes, JAB provide the Contact Information(Name;Agency;Address; Phone)on an attached sheet. 3. Original document has been signed/initialed for legal sufficiency. (All documents to be JAB signed by the Chairman,with the exception of most letters,must be reviewed and signed by the Office of the County Attorney. 4. All handwritten strike-through and revisions have been initialed by the County Attorney's JAB Office and all other parties except the BCC Chairman and the Clerk to the Board 5. The Chairman's signature line date has been entered as the date of BCC approval of the JAB document or the final negotiated contract date whichever is applicable. 6. "Sign here"tabs are placed on the appropriate pages indicating where the Chairman's JAB signature and initials are required. 7. In most cases(some contracts are an exception),the original document and this routing slip JAB should be provided to the County Attorney Office at the time the item is input into SIRE. Some documents are time sensitive and require forwarding to Tallahassee within a certain time frame or the BCC's actions are nullified. Be aware of your deadlines! 8. The document was approved by the BCC on date above and all changes made during JAB the meeting have been incorporated in the attached document. The County Attorney's Office has reviewed the changes,if applicable. 9. Initials of attorney verifying that the attached document is the version approved by the JAB BCC, all changes directed by the BCC have been made,and the document is ready fo the Chairman's signature. :°u * Please include Carolinecilekncolliergov.net on e-mail to me wit t - s resolution. Thank you. JAB I:Forms/County Forms/BCC Forms/Original Documents Routing Slip WWS Original 9.03.04,Revised 1.26.05,Revised 2.24.05;Revised 11/30/12 l6A17 MEMORANDUM Date: March 13, 2015 To: Jennifer A. Belpedio, Assistant County Attorney County Attorney's Office From: Teresa Cannon, Deputy Clerk Minutes & Records Department Re: Resolution 2015-41/2015 Floodplain Management Plan Update Per your request attached is a copy of the document mentioned above, (Item #16A17) approved by the Board of County Commissioners on Tuesday, March 10, 2015. The original document is being held in the Minutes and Records Department as part of the Board's Official Records. If you have any questions, please contact me at 252-8411. Thank you. 16A17 MEMORANDUM Date: March 13, 2015 To: Carolina Cilek, Sr. Planner GMD/Planning From: Teresa Cannon, Deputy Clerk Minutes & Records Department Re: Resolution 2015-41/2015 Floodplain Management Plan Update Attached is a scanned copy of the document, as referenced above, (Agenda Item #16A17), adopted by the Board of County Commissioners on Tuesday, March 10, 2015. If you should have any questions, please call 252-8411. Thank you. Enclosure ) 6A17 RESOLUTION NO. 2015 - 41 A RESOLUTION OF THE BOARD OF COUNTY COMMISSIONERS OF COLLIER COUNTY, FLORIDA, RELATING TO THE ADOPTION OF THE 2015 FLOODPLAIN MANAGEMENT PLAN UPDATE. WHEREAS, Collier County is a voluntary participant in the Community Rating System (CRS) Program of the National Flood Insurance Program. Communities with a rating of 7 or higher within the CRS Program and which have more than ten properties that have filed multiple flood insurance claims within any ten-year period, thus establishing them as Repetitive Loss Properties, are required to develop and maintain a Floodplain Management Plan, the purpose of which is to promote awareness of floodplain and flooding issues, identify known flood hazards, discuss past flooding events, assess the current floodplain and flooding issues, and set goals along with a strategy to make the community more resistant to flooding; and WHEREAS, Collier County is currently rated as a Class 6 community in the CRS Program. As a Class 6 community, the County is required to annually provide a progress report on the accomplishment of goals in the Floodplain Management Plan, which Plan must be updated every five years; and WHEREAS, the proposed 2015 Floodplain Management Plan Update was guided by the Floodplain Management Planning Committee and County staff and reviewed by the Collier County Planning Commissioners, the Development Services Advisory Council, and the Florida Division of Emergency Management; and WHEREAS, adoption of the Floodplain Management Plan Update will assist in identifying, assessing, and mitigating flood risks and better protect the citizens and property of Collier County from the effects of flood hazards. NOW, THEREFORE, BE IT RESOLVED BY THE BOARD OF COUNTY COMMISSIONERS OF COLLIER COUNTY, FLORIDA, that: Section One: Recitals. The above recitals are true and correct and are incorporated herein by reference. 1 •a 16A17 Section Two: Adoption/Implementation of the 2015 Floodplain Management Plan Update. The 2015 Floodplain Management Plan Update, attached as Exhibit "A," is hereby adopted and the County Manager is hereby authorized to take all actions necessary to implement the Management Plan. Section Three: Funding. Collier County will pursue available funding opportunities for the implementation of mitigation projects set forth in the Floodplain Management Plan Update. Section Four: Effective Date. This Resolution shall take effect immediately upon adoption. THIS RESOLUTION ADOPTED after motion, second, and majority vote favoring same this 0P- day of-(Y-\ , 2015. ATTEST: BOARD OF COUNTY COMMISSIONERS DWIGHT E. BROCK, Clerk COLLIER COUNTY, FLORIDA <,,a4vcc.. ri By: Attest as to CfreitraaaVeputy Clerk TIM NANCE, CHAIRMAN signature only, Approved as to form and legality: gam\ Jennifer A. Belpedi s Assistant County Atte ney �AgenItem# C /4-- Agenda da 3/�p)�5� Date Date 2,i1741 t.l 2 16A17 Exhibit A it Cofr -r Coitnty Floodplain Management Plan Collier County, FL �. -. / _ - _.,,,,r24.7,11As. „Aelnki::::-:-1.1,i- '-'--A',--,:':"'''-1---- ' '''.:--. --t4''-'-,,-A- "ii;i-4.'; 4% ' - -,`,;-' - '40, mac„ M.: aor • i . w ~� -, l IN i ,� - i■ r �, e iijiL A r6 _ !! r XJ Fay n 3 March 2015 T. amec g' FEMA foster 4,�,, wheeler Col. ier Count y 1 6 A 17 TABLE OF CONTENTS Chapters 1 INTRODUCTION 9 1.1 Purpose 9 1.2 Background and Scope 9 1.3 Community Profile 10 1.3.1 Overview of the Community 10 1.3.2 Topography and Climate 11 1.3.3 Cultural,Historic and Natural Resources 14 1.3.4 History 17 1.3.5 Economy 18 1.3.6 Population 19 1.3.7 Growth and Development Trends 20 1.4 Plan Organization 21 2 PLAN UPDATE 23 2.1 What's New in the Plan 23 2.2 2008 FMP Mitigation Strategy Status 24 3 PLANNING PROCESS 33 3.1 Local Government Participation 33 3.2 The 10-Step Planning Process 37 3.2.1 Phase I—Planning Process 37 Planning Step 1: Organize to Prepare the Plan 37 Planning Step 2: Involve the Public 40 Planning Step 3: Coordinate 41 3.2.2 Phase II—Risk Assessment 42 3.2.3 Phase III—Mitigation Strategy 42 3.2.4 Phase IV—Plan Maintenance 43 4 FLOOD RISK ASSESSMENT 45 4.1 Hazard Identification 46 4.1.1 Results and Methodology 46 Page i Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler Co ger Count y 16A17 4.1.2 Disaster Declaration History 47 4.2 Hazard Profiles 52 4.2.1 Climate Change and Sea Level Rise 55 4.2.2 Coastal/Canal Bank Erosion 60 4.2.3 Dam/Levee Failure 65 4.2.4 Flood: 100-/500-year 70 4.2.5 Flood: Stormwater/Localized Flooding 80 4.2.6 Hurricane and Tropical Storm(including Storm Surge) 99 4.2.7 Assessment of Areas Likely to Flood in the Future 115 4.2.8 Flood Hazards Profile Summary 116 4.3 Vulnerability Assessment 117 4.3.1 Vulnerability of Collier County to Specific Hazards 132 4.3.2 Climate Change and Sea Level Rise Vulnerability Assessment 132 4.3.3 Coastal/Canal Bank Erosion Vulnerability Assessment 137 4.3.4 Flood: 100-/500-year Vulnerability Assessment 137 4.3.5 Flood: Stormwater/Localized Flooding Vulnerability Assessment 172 4.3.6 Hurricane and Tropical Storm Vulnerability Assessment 172 4.4 Capability Assessment 196 4.4.1 Administrative/Technical Mitigation Capabilities 204 4.4.2 Fiscal Mitigation Capabilities 206 4.4.3 Mitigation Partnerships and Outreach 206 5 MITIGATION STRATEGY 211 5.1 Mitigation Strategy: Overview 211 5.1.1 Continued Compliance with the NFIP 211 5.2 Goals and Objectives 214 5.2.1 Coordination with Other Planning Efforts 214 5.2.2 Goal Setting Exercise 214 5.2.3 Resulting Goals and Objectives 216 5.3 Identification and Analysis of Mitigation Activities 221 5.3.1 Prioritization Process 221 5.4 Mitigation Action Plan 223 5.5 Detailed Flood Hazard Mitigation Actions 227 Page ii Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler struty 16A17 5.5.1 Existing Mitigation Actions Carried Forward from 2008 Plan 227 5.5.2 New Mitigation Actions 229 6 PLAN ADOPTION 239 7 PLAN IMPLEMENTATION AND MAINTENANCE 241 7.1 Implementation 241 7.1.1 Role of Floodplain Management Planning Committee in Implementation,Monitoring and Maintenance 242 7.2 Maintenance 242 7.2.1 Maintenance Schedule 242 7.2.2 Maintenance Evaluation Process 242 7.2.3 Incorporation into Existing Planning Mechanisms 244 7.2.4 Continued Public Involvement 245 APPENDIX A: PLANNING PROCESS 247 APPENDIX B: MITIGATION STRATEGY 303 APPENDIX C: REFERENCES 349 List of Tables Table 1-1 -Employment and Occupation Statistics for Collier County 18 Table 1-2-Major Employers in Collier County,FL 18 Table 1-3 -Employment and Occupation Statistics for Marco Island 18 Table 1-4-Employment and Occupation Statistics for Naples 19 Table 1-5 -Population Estimates for Collier County 19 Table 1-6-Collier County Demographic and Social Characteristics,2010 19 Table 1-7—Permanent Population Projections for Collier County,Florida 20 Table 2-1 -2008 Actions and Status Summary 27 Table 3-1 -FMPC Meeting Attendance Record 35 Table 3-2-Staff Capability with Six Mitigation Categories 36 Table 3-3 -Mitigation Planning and CRS 10-Step Process Reference Table 37 Table 3-4-Summary of FMPC Meeting Dates 39 Table 3-5 -Summary of Public Meeting Dates 40 Table 3-6-Public Outreach Efforts 40 Table 4-1 -Flood Hazard Summary 46 Table 4-2-FEMA Major Disaster Declarations for Florida, 1960-2014 47 Table 4-3 -FbMA Major Disaster Declarations in Florida including Collier County, 1960-2014 49 Table 4-4-NCDC Severe Weather Reports for Collier County, 1950-2014 53 Table 4-5 -SHELDUS Severe Weather Reports for Southern Florida, 1960-2014 53 Table 4-6-Projected Sea Level Rise for Collier County 59 Table 4-7-National Inventory of Dams,Collier County 67 Page iii Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler . 6 A 17 Co ger County Table 4-8 -National Levee Database,Collier County Planning Area 69 Table 4-9—Mapped Flood Insurance Zones within Collier County 72 Table 4-10-NCDC Flooding in Collier County—January 1950 to May 2014 77 Table 4-11 -SHELDUS Flooding Events in Southern Florida- 1960 to 2014 78 Table 4-12-Collier County Localized Flooding Areas 81 Table 4-13—Saffir-Simpson Hurricane Wind Scale,2012 99 Table 4-14-Collier County Historical Hurricane Tracks 102 Table 4-15 -NCDC Hurricane/Tropical Storm Data for Collier County, 1998-2014 109 Table 4-16-SHELDUS Hurricane/Tropical Storm Data for Florida,including Collier County- 1960 to 2013 109 Table 4-17 -NCDC Storm Surge Data for Collier County, 1950-2014 110 Table 4-18 -Summary of Flood Hazard Profile Results 116 Table 4-19-Content Replacement Factors 117 Table 4-20-Properties at Risk by Occupancy Type—Collier County Unincorporated Areas 118 Table 4-21 -Properties at Risk by Occupancy Type-City of Everglades City 119 Table 4-22-Properties at Risk by Occupancy Type-City of Marco Island 120 Table 4-23 -Properties at Risk by Occupancy Type-City of Naples 121 Table 4-24-Existing Land Use-Collier County Unincorporated Areas 127 Table 4-25 -Existing Land Use-City of Everglades City 128 Table 4-26-Existing Land Use-City of Marco Island 128 Table 4-27 -Existing Land Use-City of Naples 129 Table 4-28 -Sea Level Rise and Coastal Flood Exposure in Collier County 135 Table 4-29-Collier County Flood Loss Damage Factors 139 Table 4-30—Estimated Building Damage and Content Loss—Collier County Unincorporated Areas 140 Table 4-31 -Estimated Building Damage and Content Loss—City of Everglades City 141 Table 4-32-Estimated Building Damage and Content Loss-City of Marco Island 142 Table 4-33 -Estimated Building Damage and Content Loss—City of Naples 143 Table 4-34-Total Parcel Acres to Improved Flooded Acres by Flood Zone 144 Table 4-35 -Collier County Population at Risk to Flood 145 Table 4-36-Critical Facilities by Flood Zone 149 Table 4-37 -Future Land Use and 1bMA Flood Zones—Collier County Unincorporated Areas 157 Table 4-38 -NFIP Policy and Claims Data by Occupancy Type—Collier County 161 Table 4-39-NFIP Policy and Claims Data by Flood Zone—Collier County 161 Table 4-40-NFIP Policy and Claims Data Pre-FIRM—Collier County 162 Table 4-41 -NFIP Policy and Claims Data Post-FIRM—Collier County 162 Table 4-42-NFIP Policy and Claims Data by Occupancy Type-City of Everglades City 163 Table 4-43 -NFIP Policy and Claims Data by Flood Zone—City of Everglades City 163 Table 4-44-NFIP Policy and Claims Data by Occupancy Type-City of Marco Island 163 Table 4-45 -NFIP Policy and Claims Data by Flood Zone—City of Marco Island 164 Table 4-46-NFIP Policy and Claims Data by Occupancy Type-City of Naples 164 Table 4-47 -NFIP Policy and Claims Data by Flood Zone—City of Naples 164 Table 4-48—Unmitigated Repetitive Loss Summary—Collier County Unincorporated Areas 165 Table 4-49—Unmitigated Repetitive Loss Summary—City of Everglades City 167 Page iv Collier County,Florida Floodplain Management Plan f. March 2015 amec "� foster wheeler Cor County 16A17 Table 4-50—Unmitigated Repetitive Loss Summary—City of Naples 170 Table 4-51 —Assets at Risk to a Tropical Storm 175 Table 4-52-Assets at Risk to Category 1 Storm Surge 177 Table 4-53 -Assets at Risk to Category 2 Storm Surge 179 Table 4-54-Assets at Risk to Category 3 Storm Surge 181 Table 4-55 -Assets at Risk to Category 4 Storm Surge 183 Table 4-56-Assets at Risk to Category 5 Storm Surge 185 Table 4-57-Critical Facilities at Risk by Storm Surge Category-Collier County Unincorporated Areas 188 Table 4-58 -Critical Facilities at Risk by Storm Surge Category-City of Everglades City 192 Table 4-59-Critical Facilities at Risk by Storm Surge Category-City of Marco Island 192 Table 4-60-Critical Facilities at Risk by Storm Surge Category-City of Naples 193 Table 4-61 -Population at Risk to Storm Surge 194 Table 4-62-Regulatory Mitigation Capabilities 196 Table 4-63 -Administrative/Technical Capabilities 205 Table 4-64-Fiscal Mitigation Capabilities 206 Table 5-1 -Summary of Collier County Mitigation Actions 224 List of Figures Figure 1-1 -Collier County Location Map 10 Figure 1-2—Collier County Base Map 11 Figure 1-3 -Collier County HUC-12 Drainage Basins 13 Figure 3-1 -Collier County Public Survey 41 Figure 4-1 -Gulf/Atlantic Coast Sea Level Trends 56 Figure 4-2-Mean Sea Level Trend for Naples,Florida 56 Figure 4-3 -Previous Mean Sea Level Trends for Naples,Florida 57 Figure 4-4-Rate of Temperature Change in the United States, 1901-2012 57 Figure 4-5 -Scenarios for Global Mean Sea Level Rise 59 Figure 4-6-Stream Meanders 61 Figure 4-7-Sea Level Rise and Coastal Erosion of Dunes 65 Figure 4-8-National Inventory of Dams for Collier County 67 Figure 4-9-Components of a Typical Levee 68 Figure 4-10-National Levee Database for Collier County 69 Figure 4-11 -Collier County FIRM Flood Zones 73 Figure 4-12-City of Everglades City FIRM Flood Zones 74 Figure 4-13 -City of Marco Island FIRM Flood Zones 75 Figure 4-14-City of Naples FIRM Flood Zones 76 Figure 4-15 -Average Annual Precipitation for Florida 77 Figure 4-16—Major Canals in Collier County 81 Figure 4-17 -Localized Flooding Locator Map for Collier County 88 Figure 4-18 -Collier County Localized Flooding-Area 1 89 Figure 4-19-Collier County Localized Flooding-Area 2 90 Figure 4-20-Collier County Localized Flooding-Area 3 91 Page v Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler Olt- Co><anty 16A17 Figure 4-21 -Collier County Localized Flooding-Area 4 92 Figure 4-22-Collier County Localized Flooding-Area 5 93 Figure 4-23 -Collier County Localized Flooding-Area 6 94 Figure 4-24-Collier County Localized Flooding-Area 7 95 Figure 4-25 -Localized Flooding for City of Marco Island 96 Figure 4-26—Localized Flooding for City of Naples 98 Figure 4-27 -Components of Hurricane Storm Surge 100 Figure 4-28—Storm Surge Zones for Collier County 101 Figure 4-29—Historical Hurricane Tracks (1848-2014) 107 Figure 4-30-Hurricane Strikes for Collier County 108 Figure 4-31 —Hurricane Hazard Ranking by County 112 Figure 4-32-Hurricane Category 2 Probability of Occurrence 113 Figure 4-33 -Hurricane Category 5 Probability of Occurrence 114 Figure 4-34-Collier County Critical Facilities 123 Figure 4-35 -City of Everglades City Critical Facilities 124 Figure 4-36-City of Marco Island Critical Facilities 125 Figure 4-37 -City of Naples Critical Facilities 126 Figure 4-38-Collier County Existing Land Use Map 131 Figure 4-39-One-Foot Sea Level Rise Impact on Collier County 134 Figure 4-40- 100-yr Flood Depths for Collier County 138 Figure 4-41 -Critical Facilities and FEMA Flood Zones 147 Figure 4-42-Critical Facilities and 100-yr Flood Depths 148 Figure 4-43 -Collier County Future Land Use 160 Figure 4-44-Collier County Repetitive Loss Properties and FEMA Flood Zones 166 Figure 4-45 -Everglades City Repetitive Loss Properties and FEMA Flood Zones 168 Figure 4-46-Marco Island Repetitive Loss Properties and FEMA Flood Zones 169 Figure 4-47 -Naples Repetitive Loss Properties and FEMA Flood Zones 171 Figure 4-48 -Collier County Localized Flooding and Repetitive Loss Properties 172 Figure 4-49—Average Number of Tropical Storms per Year(Atlantic Basin) 173 Figure 4-50—Major Hurricane Strikes—Collier County 174 Figure 4-51 -Tropical Storm Impact in Collier County 176 Figure 4-52-Category 1 Storm Surge Impact in Collier County 178 Figure 4-53 -Category 2 Storm Surge Impact in Collier County 180 Figure 4-54-Category 3 Storm Surge Impact in Collier County 182 Figure 4-55 -Category 4 Storm Surge Impact in Collier County 184 Figure 4-56-Category 5 Storm Surge Impact in Collier County 186 Figure 4-57—Collier County Storm Surge Impact(Category 1-5) 187 Figure 4-58-Collier County Evacuation Zones 195 Figure 5-1 -Handout for Goals Exercise—Part 1 219 Figure 5-2-Handout for Goals Exercise-Part 2 220 Page vi Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler pi, 6A17 Cr County EXECUTIVE SUMMARY The purpose of this Floodplain Management Plan is to reduce or eliminate risk to people and property from flood hazards. Every community faces different hazards and every community has different resources to draw upon in combating problems. Planning is one of the best ways to develop a customized program that will mitigate the impacts of flood hazards while taking into account the unique character of a community. A well prepared floodplain management plan will ensure that allpossible activities are reviewed and implemented so that the problem is addressed by the most appropriate and efficient solutions. It can also ensure that activities are coordinated with each other and with other goals and activities,preventing conflicts and reducing the costs of implementing each individual activity. Collier County (the County) followed the planning process prescribed by the Federal Emergency Management Agency (FEMA), and this plan was developed under the guidance of a Floodplain Management Planning Committee (FMPC) comprised of representatives of Collier County Departments, citizens and other community members. The FMPC conducted a risk assessment that identified and profiled flood hazards that pose a risk to the County, assessed the County's vulnerability to these hazards, and examined the capabilities in place to mitigate them. The flood hazards profiled in this plan(in order of priority)include: • Climate Change and Sea Level Rise • Coastal/Canal Bank Erosion • Flood: Stormwater/Localized Flooding • Hurricane and Tropical Storms (including Storm Surge) • Flood: 100/500 year • Dam/Levee Failure Based on the risk assessment developed for each of the flood hazards identified above, the FMPC identified goals and objectives for reducing the County's vulnerability to the hazard. The goals and objectives are summarized as follows: Goal 1—Reduce vulnerability and exposure to flood hazards in order to protect the health, safety and welfare of residents and guests. Objective 1.1:Maintain a database of flood problems and hazards. Objective 1.2:Maintain a database of repetitive loss claim history and mitigation activities. Objective 1.3:Review the Growth Management Plan,Land Development Code,and Ordinances for compatibility with these goals and objectives,and revise where appropriate and financially feasible. Objective 1.4:Develop more comprehensive evacuation plans. Objective 1.5:Review the adequacy of emergency procedures for flood events and coastal storm surge through training and exercises. Objective 1.6:Update FEMA designated flood zones based on the best available technical data and analysis. Objective 1.7:Enforce the minimum code requirements of the National Flood Insurance Program as adopted by the Board of County Commissioners. Objective 1.8:Conduct site investigations,research exposure and hazard data,and evaluate proposed modifications to repair and mitigate stormwater management problems. Objective 1.9:Develop projects to reduce deficiencies within the stormwater management system as part of the Annual Update and Inventory Report(AUIR)and budget development process. Page 1 Collier County,Florida Floodplain Management Plan March 2015 %%�� ger Count 16A17 County Col Goal 2—Encourage property owners,through education and outreach measures,to protect their homes and businesses from flood damage. Objective 2.1:Educate property owners,including repetitive loss properties,on FEMA grant programs and other methods in order to mitigate possible flood damage. Objective 2.2:Provide the current floodproofing and retrofitting information to property owners. Objective 2.3:Effectively communicate flood risk to residents,businesses,contractors,realtors and prospective buyers. Objective 2.4: Enhance community websites to provide comprehensive flood protection and flood preparedness information. Goal 3—Reduce the vulnerability of critical facilities and infrastructure from the effects of flood hazards. Objective 3.1:Ensure protection standards for critical facilities meet Florida Building Code standards as adopted by the Board of County Commissioners. Objective 3.2:Work with appropriate personnel to prioritize critical and essential facilities in need of protection from potential flood damage Objective 3.3:Implement flood mitigation measures or strategies,as necessary,to protect critical facilities. Goal 4—Protect natural resources by employing watershed-based approaches that balance environmental, economic and engineering considerations. Objective 4.1:Maintain and enforce regulations to protect and restore wetlands and ecological functions for long-term environmental,economic and recreational values. Objective 4.2:Continue beach re-nourishment and dune construction programs for the protection of marine habitat,environmentally sensitive lands and other coastal resources. Objective 4.3:Pursue water management approaches and techniques that improve water quality and protect public health. Objective 4.4: Preserve and maintain open space in flood prone areas to reduce flood damage to buildings and to provide recreational benefits. Objective 4.5:Continue to protect aquifers and environmentally sensitive lands from encroachment of development by requiring buffers and other setbacks mechanisms. Goal 5—Minimize adverse impacts to surrounding areas and watershed functions. Objective 5.1:Reduce stormwater runoff through adequate stormwater management,flood control,on-site retention and best management practices to mitigate impacts associated with incremental construction and redevelopment projects. Objective 5.2:Evaluate funding mechanisms to increase stormwater capital improvement programs. Objective 5.3:Minimize adverse impacts to the floodplain. 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N"r6 CI 1 .F. •- ,,,J U • Cl.) 0 CI ao °• o °o o, a) o, c :, 3 0 3 as g Ca tu E� w ° ,o o,o T". tL)v $ > a a • 6, U a o co Q° of - ° .4' Q.' ° • `" o _ ° =oo a E 5 � o o 4 a ° g CapoO , . C (1)i p; a.) — -o o a C U1 ° • 09 O 3 .� ro0 a 'N .F a, {1 O, a .5 0 c 0Q> w > to > CO c, c, az o .b r, CO . a CO — -o o 'C o a, 5.1 13 4E N @ 8 5 8 Q ? a3 xwo .; o a .9 a 141U `° = N Ey a a a u. Z I.) 0 V County Cott 1 6 A 17 This plan fulfills the requirements of Section 104 of the Disaster Mitigation Act of 2000 and qualifies for CRS credit. The following table provides the 10-step CRS planning credit activity checklist and the section/page number within this plan that describes the completion of each planning step in more detail. CRS Planning Credit Activity Checklist(CRS Manual Activity 510) CRS Step Section/Page 1. Organize to prepare the plan. a.Involvement of office responsible for community planning Section 3.1 b.Planning committee of department staff Section 3.1 c.Process formally created by the community's governing board Section 3.2.1 2. Involve the public. a.Planning process conducted through a planning committee Section 3.1/Table 3-1/Appendix A b.Public meetings held at the beginning of the planning process Section 3.2.1/Table 3-5/Appendix A c.Public meeting held on draft plan Section 3.2.1/Table 3-5/Appendix A d.Other public information activities to encourage input Section 3.2.1/Table 3-6/Appendix A 3. Coordinate with other agencies. a.Review of existing studies and plans Section 3.2.1 b.Coordinating with communities and other agencies Section 3.2.1/Appendix A 4. Assess the hazard. a. Plan includes an assessment of the flood hazard with: Sections 4.1 -4.2 (1) A map of known flood hazards Sections 4.1-4.2 (2) A description of known flood hazard Sections 4.1 -4.2 (3) A discussion of past floods Sections 4.1-4.2 b.Plan includes assessment of less frequent floods Sections 4.1-4.2 c.Plan includes assessment of areas likely to flood Section 4.2.7 d.The plan describes other natural hazards 5. Assess the problem. a.Summary of each hazard identified in the hazard assessment and Section 4.3 their community impact b.Description of the impact of the hazards on: Section 4.3 (1) Life,safety,health,procedures for warning and evacuation Section 4.3 (2)Public health including health hazards to floodwaters/mold Section 4.2.4 (3)Critical facilities and infrastructure Section 4.3 (4)The community's economy and tax base Section 1.3.5 (5)Number and type of affected buildings Section 4.3 c.Review of all damaged buildings/flood insurance claims Section 4.3 d.Areas that provide natural floodplain functions Section 4.3/Appendix B e.Development/redevelopment/Population Trends Section 1.3.6 f. Impact of future flooding conditions outline in Step 4,item c Section 4.3 6. Set goals. Section 5.2 7. Review possible activities. a.Preventive activities Section 5.3/Appendix B b.Floodplain Management Regulatory/current&future conditions Section 5.3/Appendix B Page 6 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler 1 6 A 17 Colt County CRS Step Section/Page c.Property protection activities Section 5.3/Appendix B d.Natural resource protection activities Section 5.3/Appendix B e.Emergency services activities Section 5.3/Appendix B f. Structural projects Section 5.3/Appendix B g.Public information activities Section 5.3/Appendix B 8. Draft an action plan. a.Actions must be prioritized Sections 5.4—5.5/Appendix B (1)Recommendations for activities from two of the six categories Sections 5.4—5.5/Appendix B (2)Recommendations for activities from three of the six categories Sections 5.4—5.5/Appendix B (3)Recommendations for activities from four of the six categories Sections 5.4—5.5/Appendix B (4)Recommendations for activities from five of the six categories Sections 5.4—5.5/Appendix B b.Post-disaster mitigation policies and procedures Sections 5.4—5.5/Appendix B c.Action items for mitigation of other hazards Sections 5.4—5.5/Appendix B 9. Adopt the plan. Section 6 10.Implement,evaluate and revise. a.Procedures to monitor and recommend revisions Sections 7.1.1—7.2.2 b.Same planning committee or successor committee that qualifies Section 7.1.1 under Section 511.a.2(a)does the evaluation Collier County Planning Commission Recommendations The Collier County Planning Commission completed a review of the final draft Floodplain Management Plan on February 5, 2015. The Planning Commission provided several recommendations which have either been confirmed or have been incorporated into the document. General recommendations include the following: 1. The Planning Commission identified that there is a lack of participation from community members from the rural area of the County. The Planning Commission recommends that at least one person represents this geographical area on the Floodplain Management Planning Committee. 2. The Planning Commission identified that no agency (SFWMD, County, FDOT) maintains the waters below weirs. The Planning Commission recommends that this issue be examined with regards to flooding and drainage concerns. Further, the Plan identifies the Big Cypress Basin "Protecting existing canal right of way from encroachments and unauthorized uses." This needs to be reconciled with the issue noted above. 3. The Planning Commission recommended that Home Owner's Associations be advised of Floodplain Management Planning Committee meetings and participate as necessary. Page 7 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler Co ler County 1 6 A1. 7 This page intentionally left blank. Page 8 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler Co ler County 1 6 A 1 7 1 INTRODUCTION 1.1 Purpose As defined by FEMA, "hazard mitigation" means any sustained action taken to reduce or eliminate the long-term risk to life and property from a hazard event. Hazard mitigation planning is the process through which hazards are identified, likely impacts determined, mitigation goals set, and appropriate mitigation strategies determined, prioritized, and implemented. The purpose of this plan is to identify, assess and mitigate flood risk in order to better protect the people and property of Collier County from the effects of flood hazards. This plan documents Collier County's hazard mitigation planning process and identifies relevant flood hazards and strategies the County will use to decrease vulnerability and increase resiliency and sustainability. This Plan was developed in a joint and cooperative venture by members of a Floodplain Management Planning Committee (FMPC) which included representatives of Collier County, City of Everglades City, City of Marco Island, City of Naples,federal and state agencies,citizens and other stakeholders. Limited background data is provided for the City of Everglades City; however,they were not a full participant in the planning process. Therefore, detailed information provided for other jurisdictions is not necessarily provided for Everglades City. This Plan will ensure the involved communities' continued eligibility for federal disaster assistance including the Federal Emergency Management Agency (FEMA) Hazard Mitigation Grant Program (HMGP),Pre-Disaster Mitigation Program(PDM), and the Flood Mitigation Assistance Program(FMA). This Plan has been prepared in compliance with Section 322 of the Robert T. Stafford Disaster Relief and Emergency Assistance Act (Stafford Act or the Act),42 U.S. C. 5165, enacted under Section 104 of the Disaster Mitigation Act of 2000, (DMA 2000)Public Law 106-390 of October 30, 2000, as implemented at 44 CFR 201.6 and 201.7 dated October 2011. 1.2 Background and Scope Collier County, the City of Marco Island and the City of Naples currently participate in the National Flood Insurance Program's(NFIP) Community Rating System(CRS). All three communities qualify for a Class 6 Rating. The CRS recognizes and encourages community floodplain management activities that exceed the minimum standards. Under the CRS,flood insurance premium rates are adjusted to reflect the reduced flood risk resulting from community activities that(1)reduce flood losses, (2)facilitate accurate insurance ratings, and (3)promote the awareness of flood insurance. Through participation in the NFIP and a Class 6 rating with the CRS, owners of properties within Special Flood Hazard Areas (SFHAs) in the participating communities are entitled to a 20% discount on their flood insurance premiums. In addition, homeowners in non-SFHAs (Zone X and X-500) receive a 10% discount on flood insurance premiums. As part of the qualification for a Class 6 Rating and having 10 or more repetitive loss properties, Collier County is required to prepare and maintain a Floodplain Management Plan(FMP). This FMP will serve as that plan and will be incorporated into the Collier County Local Mitigation Strategy (LMS). It is the goal of the FMPC to continue to work to make improvements to this plan and to strive to maintain and/or improve the Class Rating for the County, Marco Island and Naples so that the highest reduction in flood insurance premium rates can be available to property owners. Page 9 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler 16A1 ? 1.3 Community Profile 1.3.1 Overview of the Community According to the U.S. Census Bureau, Collier County has a total area of 1,475,200 acres, of which 1,278,720 acres is land and 196,480 acres(13.3% of total area)is water. It is the largest county in Florida by land area and fourth-largest by total area. The southeastern portion of the county lies within the Big Cypress National Preserve, and the northernmost portion of Everglades National Park extends into the southern coastal part of the county. The County is bordered on the north by Lee and Hendry Counties; south by Monroe County;and east by Broward and Miami-Dade Counties. The City of Marco Island encompasses approximately 14,592 acres in total area of which about 6,848 acres,or 46.9%,is water. Marco Island is the largest barrier island within southwest Florida. The City of Naples encompasses approximately 10,195 acres in total area of which about 1,280 acres, or 13%, is comprised of bays, waterways, channels and other critically important surface water bodies. An overview of Collier County is shown in Figures 1-1 and 1-2 below. ,Ifj OP J- � 13i�Ilal��,�n �,. 10 aR1eC 1R-- 16 +40,1 foster wheeler • +VIII* r .:d'VLee � - �+. 1 . Y, r� Hendry Jr . ,x collier County Irff �„u , - 41 AN . eImosokalee NI Broward Naps Collier Ki Marco%+t4 IslandEverglades ,'''',,,',,i,,, } City • e_. Miami-Dade ' Monroe a ,a. 375 ).5 15 15.5 IIf�.e Figure 1-1-Collier County Location Map Page 10 Collier County,Florida tda Floodplain Management Plan iii March 2015 amec __ foster wheeler Co ger County 1 6 A 17 ......„,...... ,. /N/Major Roads 4 - 1411111 Nun bpaka!s amec mmp oke Intl an Reserva0art foster e sae` � _ . Unincorporated Areaswheeler " Cpu yes A" mokalee A i ti ta IMMOKALEE , ii .®, _- OIL WELL � I I1t111 IIIIIP Naples Ili i Ya vi Marco -;fr,, Island Everglades �.', ' City''',";',V4`,.- 1-/ ='j A.r ,..,..v.:1-iii;.i 0 1.5 3 6 9 12 1100. „ \ i Figure 1-2—Collier County Base Map 1.3.2 Topography and Climate The topography of Collier County is extremely flat and the western side of the County is facing the Gulf of Mexico. Much of the coastal development is reclaimed mangrove swamp that was cleared and dredged to form subdivisions. From Gordon Pass to the south there are isolated communities like Marco Island, Goodland,Everglades City, and Chokoloskee. Much of Marco Island is a dredged and filled subdivision, and the other areas are built on old shell mounds or coastal barriers. Original ground elevation in Collier County is close to sea level along the coast, but most of the coastal bulkheads and coastal subdivision roads are set to elevation 4.2 feet (NAVD88) and the roads through those subdivisions have a minimum elevation of 4.2 feet (NAVD88). The topography rises, in general, about a foot a mile as you get farther from the coast. Much of Airport Road is elevation 8 feet to 10 feet at about 3 to 4 miles from the coast. Golden Gate City is at elevation 11 feet to 13 feet about 8 miles from the coast. The first five miles of Golden Gate Boulevard running east from route 951 are at about elevation 12 feet and the land rises to the northeast until it hits the top of the Immokalee Rise at about elevation 39 feet just north of Immokalee. There are local anomalies like sand ridges and sloughs, which are higher and lower than the surrounding land. The Coastal Ridge sits between Airport-Pulling Road and the coast and parallels the coast for about Page 11 Collier County,Florida Floodplain Management Plan March 2015 amec 4 foster wheeler S &St County three miles. It contains subdivisions like Pine Ridge and High Point. Parts of the Coastal Ridge rise to about elevation 14 feet. As defined by the United States Geological Survey (USGS), the United States is divided and sub-divided into successively smaller hydrologic units. Each hydrologic unit is identified by a unique hydrologic unit code(HUC). As of 2010 there are six levels of hierarchy,represented by hydrologic unit codes from 2 to 12 digits long. Figure 1-3 illustrates the HUC-12 drainage basins in Collier County. HUC-12 drainage basins are delineated to be between 10,000 and 40,000 acres. In addition to the hydrologic unit codes, each hydrologic unit is assigned a name corresponding to the unit's principal hydrologic feature or to a cultural or political feature within the unit. Page 12 Collier County,Florida Floodplain Management Plan March 2015 amec 4 foster wheeler 1 ' 17 ,,, . 4. ,_ct r.„, E 4 I J3111131 v5 33311111 RRRRaiVe -- -- J G r I N EI a f w e w of c I A A R A R 4 WVA F Si . $ CI a i !MIN C7U d $ jgase ; c.� V 4 A R « R R A R -\.... iT N o N o�V I _ U w > W : E.. m N ♦J fi e W r w w \ _� A 12 a i$ V NtiJ 3 7`--, I ` 111i„rr tea`' tl o ^ '3 f 2 4 y o r r . '' 2 . N c'si Vie' s C...) }yen E 8 8 y. f 44 o /,-` Is888i , Q yt ! t .„ + � �& a, tO _ L 4'' ".$,, o No, SY , lh _lUdVD 31 1 . � ov . ' ! r`Q.� _ R � g o ' r ' az R e4 b'C} to a a D'1' f r.. Jil 3 ; 1 13 CU x rrv4-3-c Z IDzQ a V 46,CIA � � N 0 a Al " i p3 C V V 0 Sunt „.....„.„, County 16A17 Collier County receives about 53.5 inches of rain per year with a very wet year bringing over 70 inches and a very dry year bringing less than 40 inches. About 37 inches of that 53.5 inches falls during a 4 month "wet season", usually June, July, August, and September. Rainfalls of a couple of inches in an hour are not uncommon. The standard 25-year one-day design storm used for computerized (or manual) design of local projects drops 9 inches of rain in that 24 hour day with about 3.5 inches coming during a one-hour period. The three-day version of that storm drops about 12 inches with only three inches falling during the first two days. The 100-year 3-day design storm drops about 15 inches of rain in a similar pattern to the 25-year 3-day storm. Many local storm events cover only a few square miles and drop more water than the design storms, but since the storms are so localized, the impact is reduced by the lateral dispersion of the runoff onto the flat topography. 1.3.3 Cultural, Historic and Natural Resources Historic and Archaeological Resources The Collier County Board of County Commissioners has designated the following sites and structures as locally significant: Ochopee Post Office This is the smallest of all the United States Posts Offices and is still a significant and functioning reminder of the early tomato farming communities in Ochopee. The structure first existed as a storage shed housing irrigation pipes and farming equipment. The shed became a Post Office in 1953 after a fire destroyed the first Post Office and much of the town. It was subsequently moved to its present location in order to continue to serve as a Post Office. Today, this wood frame structure remains in its near original state.This site is located on the south side of U.S.41 and approximately 1,000 feet east of Caldwell Road. The Atlantic Coastline Depot The first trains arrived in 1927 at The Naples Depot while it was still under construction. The station served the railroad until 1971 when service was discontinued. The depot is located at 1051 5th Avenue South. Palm Cottage The Palm Cottage was built as winter home of Henry Watterson,editor of the Louisville Courier-Journal. One of the few remaining tabby-built buildings in Florida it was constructed in 1899. Tabby is a primitive form of concrete made from local materials. Palm cottage is now the headquarters for the Collier County Historical Society and is located at 137 12th Ave South in Naples. Robert's Ranch This ranch exemplifies the cultural, economic, and historic growth of the ranching industry in Collier County. It was built in 1914 and was the first ranch in Immokalee.The two-story bungalow dwelling is of primary importance since it became the center of the home extension activities in the area, a program sponsored by the U.S.Department of Agriculture.Today, the ranch style dwelling retains its original nine room floor plan with beaded wall and ceiling paneling and much of the original furnishings. The outbuildings are also very accurate examples of the type of accessory buildings found on farms of the 1920's. The ranch is located in Immokalee and on the southeast corner of Roberts Avenue and SR-29. Smallwood's Store This store was established in 1906 and is now one of the oldest buildings in Collier County. The building was elevated approximately 6 feet on pilings in 1924 to prevent flood damage. The store and trading post served the Seminole Indians, settlers and the early pioneers of Chokoloskee and Collier County. Currently the wood frame structure still rests upon pilings and remains in its original state with 95 percent of the Page 14 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler Co ler County 16A17 initial stock and artifacts intact. The store has also been listed on the National Register of Historic Places. The store is located on the south end of Mamie Street. The Olde Marco Inn Captain Bill Collier built the Marco Hotel on a 10-acre plot to house fishermen. Construction of the hotel was completed by 1885. In 1896 the Colliers allowed Frank Hamilton Cushing, leader of the Pepper- Hearst Expedition, to use the summer parlor to dry out ancient Indian artifacts uncovered in the muck near the hotel. Collier sold the hotel to a New York syndicate that had the financial backing of George E. Ruppert, part-owner of the New York Yankees, and others. Marion and Wilhelm Blomeier became owners in 1969, enclosed the porch and renovated the interior with antique tin pieces tiling the ceiling of the hallway and bar. A group of Minnesota bankers purchased the Inn and added two adjacent buildings in 2003 and 2004 with 52 condo units. JT's Island Store in Chokoloskee The original structure was a small office built by Collier in the 1920's and was located behind the Rod& Gun Club in Everglades City. It was moved to Chokoloskee in 1956 after the causeway was built. As a store, it was operated by a number of local families (Brown,Hamilton,Weeks, Kelley, and Wells). It was renamed JT's in 1989 when purchased by John and Fran Tifft who expanded the general store to include a small restaurant. It was sold again in 2001 and operated as a full restaurant and added a gift shop. The store was designated as a county historic structure in 2008 by the Board of County Commissioners. Bula Baptist Mission The Bula Baptist Mission was built in the 1940's for the African American families in the community, many of whom worked for the Lee Tidewater Cypress Company in their logging operation from 1943 to 1957. The mission was designated as a county historic structure in 2008 by the Board of County Commissioners. Nehrling Gardens In 1921 Dr. Henry Nehrling established his tropical garden that is now located within the Naples Zoo site, initially growing orchids,bromeliads,and other tropical plants.By 1925 he had increased his collection to more than 3,000 different species. In 1952 the old Nehrling Gardens site was purchased by Julius Fleischmann and was opened to the public in 1954 as a commercial tourist attraction under Fleischmann's interest and guidance. Collier County purchased the property in 2005 and currently leases it to Naples Zoo, Inc. The garden was designated as a county historic site in 2007 by the Board of County Commissioners. Hart Cottage The Hart Cottage was designed by Bert Brosmith of a group of architects who formed the "Sarasota School of Architects" and it was his first commission in Florida. The style of the home is comparable with The Sarasota School of Architecture, sometimes called "Sarasota Modern," and is a regional style of post-war architecture that emerged on Florida's Central West Coast; the combination of a clear modernist approach that is specific and unique to Florida. The cottage was designated as a county historic site in 2006 by the Board of County Commissioners. Parks,Preserve and Conservation Approximately 40% of County land within the 100-Year Floodplain (excluding the federal parks and preserves) is conservation land. Another 5.3% of the non-federal lands within the floodplain are Deed Restricted lands that will provide open space and natural benefits. Another 11% of the non-federal portions of the County in conservation lands are not in the 100-Year Floodplain, with an additional 1.5% of Deed Restricted lands that are not in the floodplain. Additionally there are 639,800 acres of federal Page 15 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler CO ler Count y 1 6 A �, 7 conservation lands, all of which are in the 100-Year Floodplain. These conservation and deed restricted open space areas are largely wetlands and contribute to recharge, surface water storage, and listed species habitat. Corkscrew Swamp Sanctuary, located mostly in Collier County,is the site of one of the first conservation preserves in the nation. This privately maintained preserve consists of approximately 13,000 acres, and hosts some of the oldest natural stands of hardwood cypress, wood stork, and other rich components of the natural environment. The Florida Panther National Wildlife Refuge is a federal preserve in Collier County and contains approximately 22,868 acres. Collier County is also the site of the 110,000 acre Rookery Bay National Estuarine Research Reserve. The Corkscrew Regional Ecosystem Watershed (CREW)Lands are located in Lee and Collier Counties.The Collier Soil and Water Conservation District manage a 212.40 acre parcel as a Regional Offsite Mitigation Area(ROMA)and eight individual Golden Gate Estates lots totaling 9.14 acres. These and other private and State conservation preserve areas have provided statements that the use of their lands are to be maintained as open space for the continued natural beneficial function of Collier County. The County Parks and Recreation Department accounts for 62 parks. These park areas are classified as: Neighborhood (14 facilities); Community (14 facilities); and Regional (4 facilities). These parks are located primarily in the urbanized areas of the County and provide open space and recreational uses. The City of Marco Island has successfully acquired numerous sites for new and expanded recreational opportunities such as "the Glon" property (Veteran's Park), strategic lots and parcels along a 1.5 mile pathway corridor, and a waterfront lot at the Factory Bay Bridge. Significant park renovations/enhancement projects at Winterberry and Mackle parks have either been completed or in final design stages, with identified capital improvement funding. And most importantly the City has established a fully functioning Park and Recreation Department. The City has an inventory of over 100 acres of total community parkland. Existing public recreation facilities within the City of Naples include seven neighborhood and linear parks, 13 mini-parks, four community parks, two natural resource areas, the Naples Pier, and the City Dock. The Collier County School Board provides recreation facilities within the City limits at four schools. Collier County provides facilities at Bayview Park and at Gulfview Middle School. In addition, there are approximately 9.1 miles of beaches. The City maintains an additional one-hundred-one 101 acres of open space parkway area, including beach ends and access points, street islands and medians, cul-de-sacs and rights-of-way. Water Bodies and Floodplains As can be seen in Figure 4-11, most of the County is located within the 100-year floodplain. A Primary and a Secondary canal system form the major surface water/stormwater drainage network in the County. These canals provide important flood protection and drainage functions to the County and surrounding areas. The County's canal system is shown in Figure 4-16. Natural and Beneficial Floodplain Functions Floodplains in riverine and coastal areas perform natural functions that cannot be replicated elsewhere. When kept open and free of development, floodplains provide the necessary flood water conveyance and flood water storage needed by a river or coastal system. When the floodplain is allowed to perform its natural function, flood velocities and peak flows are reduced downstream. Natural floodplains reduce wind and wave impacts and their vegetation stabilizes soils during flooding. Page 16 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler Co ler Count 6 y Floodplains in their natural state provide many beneficial functions beyond flood reduction.Water quality is improved in areas where natural cover acts as a filter for runoff and overbank flows; sediment loads and impurities are also minimized. Natural floodplains moderate water temperature, reducing the possibility of adverse impacts on aquatic plants and animals. Floodplains can act as recharge areas for groundwater and reduce the frequency and duration of low flows of surface water. They provide habitat for diverse species of flora and fauna, some of which cannot live anywhere else. They are particularly important as breeding and feeding areas. Wetlands Collier County includes large areas of environmentally sensitive lands that are predominantly wetlands. Because of the unique setting, large portions of these areas were purchased by state, federal, and private conservation groups. Approximately 92% of the conservation lands are wetlands. Naturally managed conservation lands contribute flood storage capacity,conveyance,and wind buffering protection to nearby and inland developments. Preservation of these wetlands and conservation lands are essential for maintenance of existing quality of life. The large parks and preserves were never developed and the only buildings are for conservation related purposes, e.g. park administration, land management, research, education, and staff housing. There are also deed restricted parcels that have not been developed or have been restored to natural conditions. Many of these are preserved as compensation for permitted wetland impacts. 1.3.4 History Southwest Florida remained virtually uninhabited until after the Civil War when handfuls of farmers and squatters began making their way south. Early pioneers fished and hunted for a living, raised crops of cabbage, peppers, tomatoes and pineapples, dug clams, made charcoal, sold bird plumes, and trapped otters and alligators for their pelts and hides. Trading posts at Everglades City became important gathering places for the few isolated settlers and Indians. Cattle ranching is one of Collier County's oldest industries. By the early 1900's, ranchers were grazing herds of scrub cattle on the open prairies around Immokalee. Modern development began in the 1920s and by the end of the decade,railroads and the Tamiami Trail had pierced the rugged wilderness to begin unlocking the area's enormous agricultural and resort potential. Railroads improved the access to market and helped raise the County's beef cattle industry to national importance by the end of World War II. Collier County's creation in 1923 and its early economic growth were closely tied to Memphis-born millionaire, Barron Gift Collier. Collier introduced paved roads,electric power,telegraphs and countless new businesses and homeowners to Florida's last frontier. Florida's first commercial oil well was drilled in Sunniland in 1943, and Collier County's cypress logging industry flourished well into the 1950's. World War II introduced hundreds of aircraft servicemen to Naples and Collier County when the U.S. Army Air Field(now Naples Airport)was activated in 1943 to train combat pilots. Several hundred men and 53 aircraft were assigned to the Naples base. Many veterans returned after the war as prospective home buyers and businessmen. In the short span of thirty years, the number of County residents swelled from 6,488 in 1950, to a phenomenal 85,971 by 1980. The County seat was transferred from Everglades City to East Naples in 1962, and signaled a new era of sustained growth in agriculture, tourism, and real estate that have made Collier County one of the fastest developing areas in the nation. Page 17 Collier County,Florida Floodplain Management Plan V March 2015 1 amec foster wheeler Co ger Countyi6Aj , 1.3.5 Economy According to the U.S. Census Bureau,the median household income for Collier County from 2009-2013 was $55,843. 14.1% of the population is considered to be living below the poverty level. Table 1-1 shows employment and unemployment rates along with industry employment by major classification for the County. Major employers for Collier County are listed in Table 1-2. Table 1-1-Employment and Occu?ation Statistics for Collier County Employment Status Percentage In Labor Force 53.9 Employed 48.4 Unemployed 5.4 Not in Labor Force 46.1 Occupation Management,business,science and arts 29.3 Service 25.1 Sales and office 26.9 Natural resources,construction and maintenance 11.9 Production,transportation and material moving 6.9 Source: U.S.Census Bureau,2009-2013 American Community Survey 5-Year Estimates Table 1-2-Major Employers in Collier County,FL Corporation/Organization #of Employees Naples Community Hospital 4,000 Ritz-Carlton Naples 1,110 Gargilo Inc. 1,110 Arthrex Inc. 1,056 Collier County's Sheriff's Office 1,029 Source: ReferenceUSA,2010. According to 2009-2013 5-Year American Community Survey completed by the U.S. Census Bureau,the median household income for the City of Marco Island is $69,676. 7.1% of the population is considered to be living below the poverty level. Table 1-3 shows employment and unemployment rates along with industry employment by major classification for the City. Table 1-3-Employment and Occupation Statistics for Marco Island Employment Status Percentage In Labor Force 38.4 Employed 36.2 Unemployed 2.2 Not in Labor Force 61.6 Occupation Management,business, science and arts 42.6 Service 23.1 Sales and office 21.9 Natural resources,construction and maintenance 6.4 Production,transportation and material moving 6.0 Source: U.S.Census Bureau,2009-2013 American Community Survey 5-Year Estimates According to the U.S. Census Bureau, the median household income for Naples from 2009-2013 was $78,614. 8.5% of the population is considered to be living below the poverty level. Table 1-4 shows Page 18 Collier County,Florida Floodplain Management Plan �. March 2015 amec foster wheeler J. 6 A' I Co ler County employment and unemployment rates along with industry employment by major classification for the City. Table 1-4-Employment and Occupation Statistics for Naples Employment Status Percentage In Labor Force 38.1 Employed 35.9 Unemployed 2.1 Not in Labor Force 61.9 Occupation Management,business,science and arts 48.7 Service 12.7 Sales and office 31.5 Natural resources,construction and maintenance 3.4 Production,transportation and material moving 3.7 Source: U.S.Census Bureau,2009-2013 American Community Survey 5-Year Estimates 1.3.6 Population Table 1-5-Population Estimates for Collier County Permanent Population(2010*) 'Unincorporated Collier County 285,170 City of Everglades City 400 City of Marco Island 16,413 'City of Naples 19,537 ollier County-wide Total 321,520 Peak Season Population(2014**) 'Unincorporated Area 365,869 Countywide 410,297 Number of Dwelling Units(2010*) 197,298 umber of Golf Courses(Public&Private) 91 Federal&State Lands:Parks,Preserves,Refuges(acres) 821,620 *Source: U.S. Bureau of the Census, 2010 Census **Source: Staff estimates based on 2000 and 2010 Census and BEBR population bulletins Table 1-6-Collier County Demographic and Social Characteristics,2010 Demographic Percentage Gender/Age Male 49.3 Female 50.7 Median Age 46.9 Under 5 Years 5.2 65 Years and Over 26.4 Race/Ethnicityr White 83.9 Asian 1.1 Page 19 Collier County,Florida Floodplain Management Plan March 2015 amec 41W— foster wheeler Sunt 1 6 A 1 7 Demographic Percentage Black or African American 6.6 American Indian/Alaska Native 0.3 Hispanic or Latino 25.9 Education High School Graduate or Higher 85.1 Bachelor's Degree or Higher 31.4 Source: U.S.Census Bureau,2010,www.census.gov 'Hispanics may be of any race,so also are included in applicable race categories. 1.3.7 Growth and Development Trends The County's permanent population projections are shown in Table 1-7. The population in Collier County is estimated to have increased since 2010, likely due to an increase in baby boomers looking for second homes, retirees moving to Florida,people taking advantage of lower housing prices and a slightly stronger job outlook.The population of Collier County is projected to increase by 53%between 2010 and 2040(medium range projection). Table 1-7—Permanent Population Projections for Collier County,Florida Countywide Projection 2015 2020 2025 2030 2035 2040 Medium Range 345,100 379,100 411,400 441,900 470,600 492,500 Source: University of Florida Bureau of Economic Research,April 2014 Page 20 Collier County,Florida Floodplain Management Plan March 2015 amecie foster wheeler Cofer County6 A 1 7 1.4 Plan Organization The Collier County Floodplain Management Plan is organized as follows: • Chapter 2: Plan Update • Chapter 3: Planning Process • Chapter 4: Flood Risk Assessment • Chapter 5: Mitigation Strategy • Chapter 6: Plan Adoption • Chapter 7: Plan Implementation and Maintenance • Appendix A: Planning Process • Appendix B: Mitigation Strategy • Appendix C: References Page 21 Collier County,Florida Floodplain Management Plan 111, March 2015 amec foster wheeler Co! r County 16A17 This page intentionally left blank. Page 22 Collier County,Florida Floodplain Management Plan March 2015 ameca foster wheeler Srunt . County 1 6 A 1 7 2 PLAN UPDATE CFR Subchapter D §201.6(d)(3): A local jurisdiction must review and revise its plan to reflect changes in development, progress in local mitigation efforts, and changes in priorities, and resubmit it for approval within 5 years in order to continue to be eligible for mitigation project grant funding. The 2008 Collier County Floodplain Management Plan contained a risk assessment of identified hazards for the County and a mitigation strategy to address the risk and vulnerability from these hazards for the Local Mitigation Strategy. Since that time, much progress has been made by the County on implementation of the mitigation strategy. The FMPC has met regularly over the previous five years to monitor, implement, and update the plan. This chapter includes an overview of the approach to updating the plan and identifies new analyses and information included in this plan update. 2.1 What's New in the Plan This FMP update involved a comprehensive review, reorganization and update of each section of the 2008 plan and includes an assessment of the success of the County in evaluating, monitoring and implementing the mitigation strategy outlined in the initial plan. Only the information and data still valid from the 2008 plan was carried forward as applicable into this FMP update. Also to be noted, Section 7.0 Implementation and Maintenance of this plan update identifies key requirements for updating future plans: • Consider changes in vulnerability due to action implementation; • Document success stories where mitigation efforts have proven effective; • Document areas where mitigation actions were not effective; • Document any new hazards that may arise or were previously overlooked; • Incorporate new data or studies on hazards and risks; • Incorporate new capabilities or changes in capabilities; • Incorporate growth and development-related changes to inventories; and • Incorporate new action recommendations or changes in action prioritization. These requirements and others as detailed throughout this plan were also addressed during this plan update process. New information and analyses contained in this plan update include the following: • Increased flood risk analysis based on the new FIRM and the most recent Collier County Assessor's Data. • The Climate Change hazard, with a focus on sea level rise and storm surge, was included as a separate hazard. An in-depth literature search was completed and the sea level rise and storm surge impacts to the County were analyzed. • GIS was used, to the extent data allowed, to analyze all priority hazards as part of the vulnerability assessment. This involved utilizing mapped hazard data,combined with the County parcel data. • New research and discussion on cultural,historic, and natural resources of the County. Page 23 Collier County,Florida Floodplain Management Plan March 2015 amecilW foster wheeler ColLt ler Count „...„.........„ y1 6 A17 • Populations at risk to identified hazards were identified utilizing GIS and 2010 Census data. Assets at risk were identified by property type, and values of properties included based on data from the Collier County Tax Assessor's Database. The discussion on growth and development trends was enhanced utilizing 2010 Census data. • Hazard impacts to future development were analyzed through the preparation of future development maps and tables by property type based on the County assessor's data. • Critical facilities were geocoded and analyzed for all mapped priority hazards. Maps of critical facilities at risk to identified hazards were included in this Update. • Enhanced public outreach and agency coordination efforts were conducted throughout the plan update process in order to meet the more rigorous requirements of CRS, in addition to DMA requirements. 2.2 2008 FMP Mitigation Strategy Status In the 2008 mitigation strategy for Collier County,the FMPC put forward the following goals, objectives and policies. Updated goals and objectives are included in Section 5 of this plan. Goal 1: Reduce flood exposure and maximize flood protection efforts. Objective 1.1:Reduce the number of repetitive loss properties within the County. • Policy 1.1.1: Reduce repetitive loss in Federal Emergency Management Agency (FEMA) designated flood zones through land acquisition and/or engineered stormwater solutions, when appropriate and financially feasible. • Policy 1.1.2: Promote use of repetitive loss mitigation financial incentive programs for planned stormwater system design and for existing stormwater system retrofit.(Lead Agency=CDES) • Policy 1.1.3: Provide flood awareness and technical information to property owners. • Policy 1.1.4: Maintain a database of flood problems and hazards, mitigation and repetitive loss claim history. • Policy 1.1.5: Conduct site investigations, research exposure and hazard data, and evaluate proposed modifications to repair and mitigate stormwater drainage problems. • Policy 1.1.6: Provide FEMA grant and loan program information. Objective 1.2: Protect environmentally sensitive lands and aquifers to maximize their survivability from known flood hazards where appropriate and financially feasible. Objective 1.3: Review the Growth Management Plan, Land Development Code, and Ordinances for compatibility with these goals and objectives, and revise where appropriate and financially feasible. Objective 1.4: Develop comprehensive coastal storm surge and inland flooding evacuation plans. Objective 1.5: Protect dune systems and coastal/marine habitat areas by prohibiting private and commercial development and promote restoration and other activities to restore damaged dune systems. Objective 1.6: Continue acquisition of Conservation Lands within the floodplain to assist with mitigation of flood events—by maintaining natural systems with no manipulation. Objective 1.7: Encourage land and water uses compatible with the protection of environmentally sensitive lands and coastal resources. Objective 1.8: Review the adequacy and completeness of emergency procedures that address catastrophic flood events. Objective 1.9: Develop a policy that addresses incremental surface water impacts throughout the County. Page 24 Collier County,Florida Floodplain Management Plan � March 2015 '!- amec foster wheeler CO ler County 16 A17 Objective 1.10: Minimize impacts from flooding in FEMA designated special flood hazard areas (i.e. flood zones starting with the letters—VII or—All)where financially feasible. • Policy 1.10.1: Provide flood protection information and assistance to property and business owners, residents, contractors, realtors, and prospective buyers in FEMA designated flood zones and other areas in the County. • Policy 1.10.2: Review existing development regulations to minimize flooding impacts to other properties. • Policy 1.10.3: Provide technical information regarding flood proofing and retrofitting of property/structures in FEMA designated special flood hazard areas and other areas of the County to minimize substantial flood damage. • Policy 1.10.4: Review proposed construction/development projects to minimize or eliminate flood risk, where financially feasible, without introducing additional flooding impacts to other properties. • Policy 1.10.5: Assign high priority to proposed storm water capital projects that protect critical facilities. • Policy 1.10.6: Incorporate wind/flood proofing and target hardening hazard mitigation measures when rehabilitating existing public facilities. Objective 1.11: Update FEMA designated flood zones based on the best available technical data and analysis. • Policy 1.11.1: Continue to define flood hazard areas. • Policy 1.11.2: Continue to evaluate specific cases of shallow flooding, recommend solutions to identified problems, and provide assistance to property owners. • Policy 1.11.3: Continue active participation in the National Flood Insurance Program Community Rating System. • Policy 1.11.4: Review, on a continual basis, the storm water systems for deficiencies and recommend revisions to F bMA designated flood zones, as necessary. • Policy 1.11.5: Coordinate with other departments/agencies that have flood exposure data and information. • Policy 1.11.6: When appropriate, provide property owners with information on removing property from FEMA designated special flood hazard areas. Objective 1.12: Enforce the building requirements, adopted by Collier County, of the National Flood Insurance Program and not allow variances that are feasibly avoidable. Goal 2: Minimize flood hazards and protect water quality county-wide by employing watershed- based approaches that balance environmental,economic and engineering considerations. Objective 2.1: Protect and restore wetland ecological functions for long-term environmental, economic and recreational values. Objective 2.2: Protect and enhance water sources and public utilities from flooding. Objective 2.3: Provide a publicly maintained storm water conveyance system with a 10-year/24-hour design storm capacity for the Golden Gate Estates and Urban areas of the County, with selected portions of the urban area having a 25-year/72-hour design storm capacity where practical and financially feasible. Page 25 Collier County,Florida Floodplain Management Plan 7 March 2015 W amec foster wheeler Co Ter County 16A17 Objective 2.4: Implement an adequately funded stormwater capital improvement program, including the use of Board of County Commissioner initiated special taxing districts to correct existing deficiencies in the stormwater system. Objective 2.5: Annually, as part of the Annual Update and Inventory Report (AUIR) and budget development process, review the publicly maintained storm water conveyance system and develop projects to eliminate or reduce deficiencies within a reasonable time frame. Objective 2.6: Evaluate possible mitigation of coastal storm surge and/or tide surge by increasing interconnecting water surge retention bays and lagoons where practical. Objective 2.7: All stormwater system facilities are to be properly constructed, operated, maintained, and periodically inspected and certified by a Florida professional engineer to verify the systems are operating as designed. Objective 2.8: Require adequate storm drainage, flood control, on-site retention and pollution abatement facilities to be constructed to mitigate impacts associated with construction and renovation projects. Objective 2.9: Pursue water management approaches and techniques that reduce the effects of storm water runoff to protect water quality and public health. • Policy 2.9.1: Implement best management practices (BMPs) as required under the National Pollution Discharge Elimination System(NPDES) where such BMP's have been accepted or are in practice in Collier County. • Policy 2.9.2: Review storm water pollution abatement BMPs to not increase flood risk. Objective 2.10: Surface, stormwater and watershed projects shall incorporate: 1. Open space and natural resource areas management to minimize flood hazards. 2. Utilize landscape in its natural condition. 3. Observe all planned and retrofit activities: a.Avoidance b.Minimization c. Mitigation of destruction of natural landscape and stormwater function within the basin and sub-basin d. Mitigation not allowed to leave basin or County. • Policy 2.10.1: Manage, restore and/or enhance habitat areas, linkages and corridor segments, where practical and financially feasible. • Policy 2.10.2: Identify, protect, and, where practical and financially feasible, restore major wetland and flow-way systems to function as important components of the floodplain conveyance system. • Policy 2.10.3: Identify, acquire, and, where practical and financially feasible, construct improvements on lands adjacent to major wetland and flow-way systems to restore storage and conveyance capacity that has been negatively impacted by development. 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In order to develop a more comprehensive approach to reducing the effects of natural disasters,the planning process shall include: 1) An opportunity for the public to comment on the plan during the drafting stage and prior to plan approval; 2) An opportunity for neighboring communities, local and regional agencies involved in hazard mitigation activities, and agencies that have the authority to regulate development, as well as businesses, academia, and other private and nonprofit interests to be involved in the planning process; and 3) Review and incorporation, if appropriate, of existing plans, studies, reports, and technical information. 44 CFR Subsection D§201.6(c)(1): The plan shall include the following: 1)Documentation of the planning process used to develop the plan,including how it was prepared,who was involved in the process, and how the public was involved. This Floodplain Management Plan was developed under the guidance of a Floodplain Management Planning Committee (FMPC). The Committee's representatives included representatives of Collier County, City of Everglades City, City of Marco Island, City of Naples, state agencies, citizens and other community members. Information in this plan will be used to help guide and coordinate mitigation activities and decisions for local land use policy in the future. Proactive mitigation planning will help reduce the cost of disaster response and recovery to communities and their residents by protecting critical community facilities, reducing liability exposure, and minimizing overall community impacts and disruptions. This plan identifies activities that can be undertaken by both the public and the private sectors to reduce safety hazards,health hazards,and property damage caused by floods. 3.1 Local Government Participation The DMA planning regulations and guidance stress that each local government seeking FEMA approval of their mitigation plan must participate in the planning effort in the following ways: • Participate in the process as part of the FMPC; • Detail where within the planning area the risk differs from that facing the entire area; • Identify potential mitigation actions; and • Formally adopt the plan. For the Collier County FMPC, "participation"meant the following: • Providing facilities for meetings; • Attending and participating in the FMPC meetings; • Completing and returning the AMEC Data Collection Guide; • Collecting and providing other requested data(as available); • Managing administrative details; • Making decisions on plan process and content; Page 33 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler Col. ler Count .....„.„.„.. y 16417 • Identifying mitigation actions for the plan; • Reviewing and providing comments on plan drafts; • Informing the public,local officials, and other interested parties about the planning process and providing opportunity for them to comment on the plan; • Coordinating, and participating in the public input process; and • Coordinating the formal adoption of the plan by the County Commission. The FMPC met all of the above stated participation requirements. The FMPC included key representatives from County and City Departments/Divisions as well as citizen volunteers. The participants comprising the Collier County FMPC included the following: 1. Gary McAlpin,P.E. Manager-Coastal Zone Management Capital Project Planning, Impact Fees and Program Management Department, Growth Management Division 2. Robert Wiley,P.E.,CFM Principle Project Manager Collier County Operations and Support Department, Growth Management Division 3. Caroline Cilek,AICP, CFM Land Development Code Manager Collier County Development Review — Floodplain Management Section, Growth Management Division 4. Jerry Kurtz,P.E. Principle Project Manager Collier County Natural Resources Department,Growth Management Division 5. Craig Pajer Principle Project Manager Collier County Planning and Project Management Department,Public Utilities Division 6. Mike Sheffield Manager Collier County Communication and Customer Relations Department,County Manager's Office 7. Dan Summers Director Collier County Bureau of Emergency Services,Administrative Services Division 8. Jon Walsh,P.E. Building Official Collier County Plan Review and Inspection Department, Growth Management Division 9. Richard Zyvoloski Jr.,FPEM,CFM(Alternate) Coordinator Collier County Emergency Management Department,Administrative Services Division 10. Christa Carrera,CFM Page 34 Collier County,Florida Floodplain Management Plan March 2015 amecliW foster wheeler Cotr County16A1 ? Floodplain Coordinator City of Naples Building Department 11. Raquel Pines(Alternate) Accountant City of Everglades City Accounting Department 12. Chris Sparacino,CFM Floodplain Coordinator City of Marco Island Growth Management Department 13. Kenneth Bills Citizen Volunteer 14. Phillip Brougham Citizen Volunteer 15. Joseph Gagnier Citizen Volunteer 16. Lisa Koehler Citizen Volunteer 17. Clarence Tears Citizen Volunteer 18. Dennis Vasey Citizen Volunteer 19. James Hale Citizen Volunteer Table 3-1 details the FMPC meeting dates and the FMPC members in attendance. A more detailed summary of FMPC meeting dates including topics discussed and meeting locations follows in Table 3-4. Meeting minutes and sign-in sheets are included in Appendix A. Table 3-1-FMPC Meeting Attendance Record Meeting Date Member Name Affiliation 07/16/14 09/30/14 10/23/14 11/19/14 11/20/14 12/16/14 Gary McAlpin Collier County ✓ ✓ ✓ V V ✓ Robert Wiley Collier County ✓ V V ✓ V V Caroline Cilek Collier County ✓ ✓ ✓ ✓ V V Jerry Kurtz Collier County ✓ ✓ ✓ V V N/A Craig Pajer Collier County V V ✓ V ✓ ✓ Mike Sheffield Collier County ✓ E ✓ V V V Dan Summers/Rick Collier County ✓ ✓ V ✓ ✓ ✓ Zyvoloski(Alternate) John Walsh Collier County ✓ V N/A N/A N/A N/A Christa Carrera City of Naples ✓ ✓ ✓ ✓ ✓ V Raquel Pines City of V N/A ✓ V Page 35 Collier County,Florida Floodplain Management Plan March 2015 y amec foster wheeler Co ger County 16 A 17 Meeting Date Member Name Affiliation 07/16/14 09/30/14 10/23/14 11/19/14 11/20/14 12/16/14 (Alternate) Everglades City Chris Sparacino City of Marco V V V V V V Island Kenneth Bills Citizen ✓ ✓ N/A ✓ ✓ V Volunteer Phillip Brougham Citizen V V N/A E E V Volunteer Joseph Gagnier Citizen V V V V V V Volunteer Lisa Koehler Citizen N/A V ✓ V ✓ ✓ Volunteer Clarence Tears Citizen N/A V N/A E E N/A Volunteer Dennis Vasey Citizen V V V E E ✓ Volunteer James Hale Citizen V V Volunteer N/A V V E Key: E=excused;N/A=not attending Based on the area of expertise of each County and City representative participating on the FMPC, Table 3-2 demonstrates each member's expertise in the six mitigation categories (Prevention, Property Protection, Natural Resource Protection, Emergency Services, Structural Flood Control Projects and Public Information). The Collier County Planning and Zoning Department Growth Management Division which is responsible for community land use and comprehensive planning was an active participant on the FMPC and provided data and information to support development of the plan. Table 3-2-Staff Capability with Six Mitigation Categories Structural Natural Flood Community Property Resource Emergency Control Public Department Prevention Protection Protection Services Projects Information Other Collier County ✓ ✓ ✓ ✓ ✓ ✓ Planning&Zoning Collier County Emergency ✓ ✓ ✓ Management Collier County ✓ ✓ ✓ Emergency Services Collier County Planning and Project ✓ ✓ ✓ ✓ ✓ V Management Collier County ✓ V ✓ V V Stormwater Planning Collier County Plan ✓ ✓ ✓ Review and Inspection Collier County Communication and ✓ Customer Relations Marco Island Growth ✓ ✓ ✓ ✓ ✓ V ✓ Management City of Naples V ✓ ✓ V V V ✓ Building Department Page 36 Collier County,Florida Floodplain Management Plan March 2015 4 amec foster wheeler Co ier County 1 6 A 17 This Section 3 and Appendix A provide additional information and documentation of the planning process that was implemented for the development of this FMP. 3.2 The 10-Step Planning Process The planning process for preparing the Collier Floodplain Management Plan was based on DMA planning requirements and FEMA's associated guidance. This guidance is structured around a four-phase process: 1)Planning Process; 2)Risk Assessment; 3)Mitigation Strategy; and 4)Plan Maintenance. Into this process, Collier County integrated a more detailed 10-step planning process used for FEMA's CRS and Flood Mitigation Assistance programs. Thus, the modified 10-step process used for this plan meets the requirements of five major programs: FEMA's Hazard Mitigation Grant Program; Pre-Disaster Mitigation Program; Flood Mitigation Assistance Program; Community Rating System; and new flood control projects authorized by the U.S.Army Corps of Engineers. Table 3-3 shows how the 10-step CRS planning process (CRS Manual Activity 510) aligns with the four phases of hazard mitigation planning pursuant to the Disaster Mitigation Act of 2000. Table 3-3-Mitigation Planning and CRS 10-Step Process Reference Table DMA Process(CFR 44 Subsection D) CRS Process Phase I—Planning Process §201.6(c)(1) Step 1. Organize to Prepare the Plan §201.6(b)(1) , Step 2. Involve the Public §201.6(b)(2)&(3) Step 3. Coordinate Phase II—Risk Assessment §201.6(c)(2)(i) Step 4. Assess the Hazard §201.6(c)(2)(ii)&(iii) Step 5. Assess the Problem Phase III—Mitigation Strategy §201.6(c)(3)(i) Step 6. Set Goals §201.6(c)(3)(ii) Step 7. Review Possible Activities §201.6(c)(3)(iii) Step 8. Draft an Action Plan Phase IV—Plan Maintenance §201.6(c)(5) Step 9. Adopt the Plan §201.6(c)(4) Step 10. Implement,Evaluate and Revise the Plan The development of this FMP involved a comprehensive review of all flood hazards specific to Collier County. Also to be noted,this plan provides an analysis of climate change impacts to the County. 3.2.1 Phase I— Planning Process Planning Step 1: Organize to Prepare the Plan With Collier County's commitment to participate in the DMA planning process and the CRS, County officials worked to establish the framework and organization for development of the plan. An initial meeting was held with key community representatives to discuss the organizational aspects of the plan development process. Page 37 Collier County,Florida Floodplain Management Plan �. March 2015 amec "'P foster wheeler 16A17 �rer County Invitations to participate on the FMPC were extended to County and City officials, citizens, and federal, state, and local stakeholders that might have an interest in participating in the planning process. The list of initial invitees is included in Appendix A. The following local stakeholders were invited to participate on the FMPC: Collier County County Manager Planning and Zoning Department Emergency Management Department Bureau of Emergency Services Stormwater Planning Department Planning and Project Management Department Plan Review and Inspection Department Communication and Customer Relations Department Neighboring Communities City of Everglades City City of Marco Island City of Naples Seminole Tribe of Florida(Immokalee Reservation) City of Fort Myers Lee County Hendry County Other Government and Stakeholder Representatives Florida Division of Emergency Management-NFIP Program Manager Florida Hazard Mitigation Officer&NFIP Coordinator Florida Community Rating System Coordinator Florida Department of Environmental Protection Southwest Florida Water Management District Southwest Florida Regional Planning Council ISO CRS Specialist FEMA Region IV US Army Corps of Engineers American Red Cross, Southern Gulf Region National Weather Service Collier County Public Schools Florida Panther National Wildlife Refuge Florida Fish and Wildlife Conservation Commission Rookery Bay National Estuarine Research Reserve Florida Southwestern State College Hodges University Ave Maria University Collier County Building Industry Association Collier County Extension Page 38 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler Co ler County The planning process officially began with a kick-off meeting held on July 16, 2014 at 10:00 am in the Collier County Growth Management Division offices, followed by a public kick-off meeting held the same day at 5:15 pm in the same location. The meetings covered the scope of work and an introduction to the DMA, CRS, and FMA requirements. Two public notices were posted in the local newspaper (Naples Daily News)inviting members of the public to attend this kickoff meeting. During the planning process, the FMPC communicated through face-to-face meetings, email and telephone conversations. Draft documents were posted on the County's website so that the FMPC members could easily access and review them. The formal FMPC meetings followed the CRS Planning Steps. Meeting minutes and sign-in sheets for the FMPC meetings are included in Appendix A. The meeting dates and topics discussed are summarized below in Table 3-4. All FMPC meetings were open to the public. Table 3-4-Summary of FMPC Meeting Dates Meeting Type Meeting Topic Meeting Date Meeting Location 1) Introduction to DMA,CRS and the planning process Collier County FMPC#1 2) Organize resources: the role of the FMPC, July 16,2014 Growth (Kick-off) planning for public involvement,and coordinating Management with other agencies and stakeholders Division Office 3) Introduction to hazard identification 1) Review/discussion of Flood Risk Assessment Collier County (Assess the Hazard) Growth FMPC#2 2) Review/discussion of Vulnerability Assessment September 30,2014 Management (Assess the Problem) Division Office 1) Continued review/discussion of Flood Risk Collier County FMPC#3 Assessment(Assess the Hazard) October 23,2014 Growth 2) Continued review/discussion of Vulnerability Management Assessment(Assess the Problem) Division Office Collier County FMPC#4 1) Review of existing Goals from 2008 FMP November 19,2014 Government Center 2) Development of new Goals for 2014 FMP Risk Management Training Room 1) Review/status of existing Mitigation Strategies Collier County FMPC#5 from 2008 FMP November 20,2014 Government Center 2) Development of new/updated Mitigation Strategies Risk Management for 2014 FMP Training Room 1) Review"Draft"Floodplain Management Plan Collier County FMPC#6 December 16,2014 Government Center 2) Solicit comments and feedback from the FMPC Risk M Traininagnagement Room Page 39 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler Co ger County 16A17 Planning Step 2: Involve the Public Early discussions with the FMPC established the initial plan for public involvement. The FMPC agreed to an approach using established public information mechanisms and resources within the community. Public involvement activities for this plan update included press releases, stakeholder and public meetings, public surveys, and the collection of public and stakeholder comments on the draft plan. The formal public meetings for this project are summarized in Table 3-5. Table 3-5-Summary of Public Meeting Dates Meeting Meeting Type Meeting Topic Meeting Date Locations 1) Introduction to DMA,CRS and the planning Collier County Public process July 16,2014 Growth Meeting#1 Management 2) Introduction to hazard identification Division Office 1) Review complete "Draft" Floodplain Management Collier County Public Plan December 16, Government Meeting#2 2014 Center Risk 2) Solicit comments and feedback from the public Management Training Room Public outreach for the plan development began during the initial plan development process with an informational press release placed in the local paper inviting the public to the first public meeting held on July 16, 2014. The final public meeting held on December 16, 2014 was also advertised in the local newspaper. Documentation to support the public outreach efforts can be found in Appendix A. Involving the Public beyond Holding Public Meetings The plan development process included additional public outreach activities beyond the formal public meetings as summarized below in Table 3-6. The FMPC found nine different ways to involve the public beyond attending public meetings. Documentation to support the additional public outreach efforts can be found in Appendix A. Table 3-6-Public Outreach Efforts Event Message Date Naples Daily News Article on lowering flood insurance rates for July 16,2014 Collier County Collier County CCTV 1St Public Meeting recorded and aired live July 16,2014 Collier County CCTV 1St Public Meeting re-aired July 22,2014 Collier County Website FMPC Meeting Dates,Meeting Agendas and On-going since June Meeting Minutes posted for public information 2014 Collier County Website Draft Risk/Vulnerability Assessment posted for September 30,2014 public comment Public Survey posted requesting public input Collier County Website into floodplain management plan planning November 6,2014 process Collier County Website Complete Draft Floodplain Management Plan December 16,2014 posted for public comment Collier County Growth Hard copy of Draft Floodplain Management January 26,2015 Management Division Office Plan made available for public comment Article advertising purpose of Draft Floodplain Naples Daily News Management Plan and website location where January 31,2015 Plan is available for public review and comment Page 40 Collier County,Florida Floodplain Management Plan al March 2015 amec foster wheeler Colt County 16A17 The Collier County public survey which requested public input into the floodplain management plan planning process and the identification of mitigation activities that could lessen the risk and impact of future flood hazard events is shown in Figure 3-1. A summary of the completed survey results has been included in Appendix A. cote.county Caller Casty sat yen help: Collie County is ado.to become kers minable to Do.Wap and your p. too.on seaman The Conry wand a flood Miepbm Aswan.federal pram m papa a Mood 35apeoo Pim. 21..Pa will salify ffi an.w ease m ae,'s flood had risk sed dearmim how to best anatte or mope Lae nth mad.fist area areas eery be masa,to bene cmo.mcn thou nskt. This song u r.ppossmny fa you to are am mans a pa-19a m the apnea paean process.The e,fm..oa Sas provide ail held m better mama pmr brad comms and mat tad to masa wanes Wet shaild help lessee m<erpeco of fee bead mean. Please help u by again;Vh saran by Annan.13.2013 and moral It t.: Cary M.Alpia,P.L C.l err Cola-Groat MeagreDMLlw 2090 N.Hank.Doke Napa FL 34104 Sonet can also be Dud to(239)2232-2950 a ended to Guv dcAlum4coI iegm'm 1.There do yea the". Collie Casty =Other 2.Hare you neer aerated et befa Impacted by Hak.mr or Sal a le Coals f eaoes^ =Yet _no e.H"Yes,^pkau raplafa: Pale I oft Figure 3-1-Collier County Public Survey Planning Step 3: Coordinate Early in the planning process, the FMPC determined that the risk assessment, mitigation strategy development, and plan approval would be greatly enhanced by inviting other local, state and federal agencies and organizations to participate in the process. A list of stakeholders invited to participate on the FMPC is included above under Planning Step 1. Coordination involved contacting these agencies through a variety of mechanisms and informing them on how to participate in the plan development process. Coordination with these groups included holding face-to-face meetings and sending outreach letters. All of these groups and agencies were solicited asking for their assistance and input and telling them how to become involved in the plan development process. A sample coordination letter can be found in Appendix A. Coordination with Other Community Planning Efforts and Hazard Mitigation Activities Coordination with other community planning efforts is also paramount to the success of this plan. Mitigation planning involves identifying existing policies, tools, and actions that will reduce a community's risk and vulnerability to hazards. Collier County uses a variety of comprehensive planning mechanisms, such as a Growth Management Plan and land development regulations and ordinances to guide growth and development. Integrating existing planning efforts and mitigation policies and action strategies into this plan establishes a credible and comprehensive plan that ties into and supports other community programs. The development of this plan incorporated information from the following existing plans, studies, reports, and initiatives as well as other relevant data from neighboring communities and other jurisdictions. Page 41 Collier County,Florida Floodplain Management Plan March 2015 - avec foster wheeler Collyer County 1 A 1 7 • Collier County Floodplain Management Plan,2008 • Collier County Local Mitigation Strategy, 2010 • Collier County Repetitive Loss Areas Analysis,2013 • Collier County Watershed Management Plan,2011 • Collier County Growth Management Plan, 2014 • Collier County Comprehensive Emergency Management Plan, 2012 • Collier County Flood Insurance Study,2012 • Collier County 2014 Tax Assessor Data • Collier County Flood Damage Prevention Ordinance • Collier County Land Development Code • Collier County Building Code Ordinance • Collier County Community Rating System Annual Reports • City of Marco Island Building Code Ordinance • City of Marco Island Comprehensive Plan,2009 • City of Marco Island Post-Disaster Recovery Plan,2001 • City of Naples Building Code Ordinance • City of Naples Comprehensive Plan(no date provided) • City of Naples Stormwater Master Plan,2007 • State of Florida Hazard Mitigation Plan,August 2013 • State of Florida Critical Erosion Report,June 2012 These and other documents were reviewed and considered, as appropriate,during the collection of data to support Planning Steps 4 and 5, which include the hazard identification, vulnerability assessment, and capability assessment. Data from these plans and ordinances were incorporated into the risk assessment and hazard vulnerability sections of the plan as appropriate. The data was also used in determining the capability of the community in being able to implement certain mitigation strategies. The Capability Assessment can be found in Section 4.4. 3.2.2 Phase II— Risk Assessment Planning Steps 4 and 5: Identify/Assess the Hazard and Assess the Problem The FMPC completed a comprehensive effort to identify/update, document, and profile all flood hazards that have, or could have, an impact on the planning area including an evaluation of climate change and sea level rise. Data collection worksheets were developed and used in this effort to aid in determining hazards and vulnerabilities and where the risk varies across the planning area. Geographic information systems (GIS) were used to display, analyze, and quantify hazards and vulnerabilities. A draft of the risk and vulnerability assessment was posted on the County's website for FMPC and public review and comment. The FMPC also conducted a capability assessment to review and document the planning area's current capabilities to mitigate risk from and vulnerability to hazards. By collecting information about existing government programs, policies, regulations, ordinances, and emergency plans, the FMPC could assess those activities and measures already in place that contribute to mitigating some of the risks and vulnerabilities identified. A more detailed description of the risk assessment process and the results are included in Section 4 Risk Assessment. 3.2.3 Phase III— Mitigation Strategy Planning Steps 6 and 7: Set Goals and Review Possible Activities Page 42 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler Co ler County 1 6 A 17 AMEC facilitated brainstorming and discussion sessions with the FMPC that described the purpose and process of developing planning goals and objectives, a comprehensive range of mitigation alternatives, and a method of selecting and defending recommended mitigation actions using a series of selection criteria. This information is included in Section 5 Mitigation Strategy. Additional documentation on the process the FMPC used to develop the goals and strategy has been included in Appendix B. Planning Step 8: Draft an Action Plan A complete first draft of the plan was prepared based on input from the FMPC regarding the draft risk assessment and the goals and activities identified in Planning Steps 6 and 7. This complete draft was posted for FMPC and public review and comment on the County's website. Other agencies were invited to comment on this draft as well. FMPC,public and agency comments were integrated into the final draft for the FDEM and FEMA Region IV to review and approve, contingent upon final adoption by Collier County,the City of Marco Island and the City of Naples. 3.2.4 Phase IV— Plan Maintenance Planning Step 9: Adopt the Plan In order to secure buy-in and officially implement the plan, the plan was reviewed and adopted by the County, the City of Marco Island and the City of Naples on the date(s) included in the corresponding resolution in Section 6 Plan Adoption. Planning Step 10: Implement, Evaluate and Revise the Plan Implementation and maintenance of the plan is critical to the overall success of hazard mitigation planning. Up to this point in the planning process, all of the FMPC's efforts have been directed at researching data, coordinating input from participating entities, and developing appropriate mitigation actions. Section 7 Plan Implementation and Maintenance provides an overview of the overall strategy for plan implementation and maintenance and outlines the method and schedule for monitoring, updating, and evaluating the plan. The Section also discusses incorporating the plan into existing planning mechanisms and how to address continued public involvement. Page 43 Collier County,Florida Floodplain Management Plan March 2015 y amec foster wheeler Collier Count y I 6 A 17 This page intentionally left blank. Page 44 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler Cor County 161417 4 FLOOD RISK ASSESSMENT 44 CFR Subsection D §201.6(c)(2): [The plan shall include] A risk assessment that provides the factual basis for activities proposed in the strategy to reduce losses from identified hazards. Local risk assessments must provide sufficient information to enable the jurisdiction to identify and prioritize appropriate mitigation actions to reduce losses from identified hazards. This section describes the Risk Assessment process for the development of the Collier County Floodplain Management Plan. It describes how the County met the following requirements from the 10-step planning process: • Planning Step 4: Assess the Hazard • Planning Step 5: Assess the Problem As defined by FEMA,risk is a combination of hazard,vulnerability,and exposure. "It is the impact that a hazard would have on people, services, facilities, and structures in a community and refers to the likelihood of a hazard event resulting in an adverse condition that causes injury or damage." This flood risk assessment covers the entire geographical area of Collier County, FL Unincorporated Areas, City of Everglades City, City of Marco Island and City of Naples. The risk assessment process identifies and profiles relevant hazards and assesses the exposure of lives, property, and infrastructure to these hazards. The process allows for a better understanding of a jurisdiction's potential risk to natural hazards and provides a framework for developing and prioritizing mitigation actions to reduce risk from future hazard events. This risk assessment followed the methodology described in the FEMA publication Understanding Your Risks—Identifying Hazards and Estimating Losses (FEMA 386-2, 2002), which breaks the assessment down to a four-step process: 1)Identify Hazards; 2)Profile Hazard Events; 3)Inventory Assets; and 4)Estimate Losses. Data collected through this process has been incorporated into the following sections of this chapter: Section 4.1: Hazard Identification identifies the natural flood hazards that threaten the planning area. Section 4.2: Hazard Profiles discusses the threat to the planning area and describes previous occurrences of flood hazard events and the likelihood of future occurrences. Section 4.3: Vulnerability Assessment assesses the planning area's exposure to natural flood hazards; considering assets at risk,critical facilities,and future development trends. Section 4.4: Capability Assessment inventories existing mitigation activities and policies, regulations, and plans that pertain to mitigation and can affect net vulnerability. Page 45 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler 9r9un 16x17 4.1 Hazard Identification 44 CFR Subsection D §201.6(c)(2)(i): [The risk assessment shall include a] description of the type...of all natural hazards that can affect the jurisdiction. Collier County's FMPC conducted a hazard identification study to determine the natural flood hazards that threaten the planning area. 4.1.1 Results and Methodology Using existing flood hazard data and input gained through planning meetings, the FMPC agreed upon a list of natural flood hazards that could affect Collier County. Flood hazard data from the Collier County Local Mitigation Strategy (LMS), FEMA, the Florida Division of Emergency Management (FDEM), the National Oceanic and Atmospheric Administration (NOAA), the National Hurricane Center (NHC), National Climatic Data Center (NCDC), the Spatial Hazards Events and Losses Database for the United States (SHELDUSTM) and many other sources were examined to assess the significance of these hazards to the planning area. Significance was measured in general terms and focused on key criteria such as frequency and resulting damage, which includes deaths and injuries, as well as property and economic damage. The flood hazards identified in Table 4-1 were evaluated as part of this plan. Only the most significant hazards with the potential to cause significant human and/or monetary losses in the future have a more detailed hazard profile and are analyzed further in Section 4.3 Vulnerability Assessment. Table 4-1-Flood Hazard Summary Hazard Frequency of Spatial Extent Potential Magnitude Significance Occurrence Climate Change and Sea Level Rise Highly Likely Limited Negligible Low Coastal/Canal Bank Erosion Highly Likely Limited Negligible Medium Flood: Stormwater/Localized Flooding Highly Likely Limited Negligible Medium Hurricane and Tropical Storms(including Storm Surge) Likely Extensive Catastrophic High Flood: 100-/500-year Occasional Extensive Catastrophic High Dam/Levee Failure Unlikely Limited Negligible Low Guidelines: Frequency of Occurrence: Spatial Extent: Highly Likely: Nearly 100%probability within the next year. Limited:Less than 10%of planning area. Likely: Between 10 and 100% probability within the next Moderate: 10-50%of planning area. year. Extensive: 51-100%of planning area. Occasional: Between 1 and 9% probability within the next year. Significance: Unlikely: Less than 1%probability within the next year. Low Medium Potential Magnitude: High Catastrophic: More than 50%of the area affected. Critical: 26 to 50%of the area affected. Limited: 10 to 25%of the area affected. Negligible:Less than 10%of the area affected. Source: AMEC Data Collection Guide Page 46 Collier County,Florida Floodplain Management Plan r March 2015 amec foster wheeler Co ier County 16 A 1 7 The following hazard was evaluated by the FMPC and determined to be a non-prevalent hazard that should not be included in the plan: Tsunamis-Defined as a long-term (generally 15 to 60 minutes) wave caused by a large scale movement of the sea floor due to volcanic eruption, marine earthquake or landslide. Barely noticeable at sea, the wave velocity may be as high as 400 knots so that it travels great distances and in shoal water reaches heights up to 15 meters. According to a 2009 report by the USGS titled Regional Assessment of Tsunami Potential in the Gulf of Mexico,there are no significant earthquake sources within the Gulf of Mexico that are likely to generate tsunamis. Tsunami propagation from significant earthquake sources outside the Gulf of Mexico, such as the northern Panama Convergence Zone, Northern South America, Cayman Trough, the Puerto Rico trench, or the Gibraltar area shows that wave amplitude is greatly attenuated by the narrow and shallow passages into the gulf, and as a result, these tsunami sources do not constitute a tsunami hazard to the Gulf of Mexico coast. 4.1.2 Disaster Declaration History The FMPC researched past events that resulted in a federal and/or state emergency or disaster declaration in the planning area for Collier County in order to identify and update known flood hazards. Federal and/or state disaster declarations may be granted when the Governor certifies that the combined local, county and state resources are insufficient and that the situation is beyond their recovery capabilities. When the local government's capacity has been surpassed, a state disaster declaration may be issued, allowing for the provision of state assistance. Should the disaster be so severe that both the local and state government capacities are exceeded, a federal emergency or disaster declaration may be issued allowing for the provision of federal assistance. Details on major federal disaster declarations were obtained by the FMPC from FEMA and compiled chronologically in Tables 4-2 and 4-3. Table 4-2 displays flood related major disaster declarations that the state of Florida has received since 1960. This table reflects the vulnerability and historic patterns of flood hazards for Florida. Table 4-2-FEMA Major Disaster Declarations for Florida,1960-2014 Hazard Type Disaster# Date Severe Weather 97 3/23/1960 Hurricane Donna 106 9/12/1960 Abnormally High Tides 141 12/17/1962 Hurricane Cleo 175 9/8/1964 Hurricane Dora 176 9/10/1964 Hurricane Betsy 209' 9/14/1965 Hurricane Gladys 252 11/7/1968 Heavy Rains,Flooding 289 7/3/1970 Tropical Storm Agnes 337 6/23/1972 Severe Storms,Flooding 387 5/26/1973 Flooding 479 8/22/1975 High Winds,Heavy Rains,Flooding 484 9/26/1975 Severe Winter Weather 526 1/31/1977 Severe Storms,Tornadoes,Flooding 586 5/15/1979 Hurricane Frederic 600 9/13/1979 Page 47 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler 1 A 1 7 Co ler County 6 Hazard Type Disaster# Date Severe storms,flooding 607 9/29/1979 Severe storms,flooding 664 7/7/1982 Hurricane Elena 743 9/12/1985 Hurricane Kate 756 12/3/1985 Flooding,Severe Storm 862 4/3/1990 Flooding,Severe Storm 952 8/14/1992 Hurricane Andrew 955' 8/24/1992 Flooding,Severe Storm,Tornadoes 966 10/8/1992 Tornadoes,Flooding,High Winds,Tides,Freezing 982' 3/13/1993 Severe Storm,Flooding,Tropical Storm Alberto 1035 7/10/1994 Tropical Storm Gordon,Heavy Rain,Tornadoes,Flooding 1043 11/28/1994 Hurricane Erin 1062 8/10/1995 Hurricane Opal 1069' 10/4/1995 Severe Storm,Flooding 1074 10/27/1995 Severe Storms/Flooding 1141 10/15/1996 Severe Thunderstorms,Tornadoes and Flooding 1204 2/12/1998 Hurricane Earl 1241 9/4/1998 Hurricane Georges 1249 9/28/1998 Tropical Storm Mitch 1259 11/6/1998 Hurricane Floyd 1300 9/22/1999 Hurricane Irene 1306' 10/20/1999 Tropical Storm 1344 10/3/2000 Heavy Rains And Flooding 1345 10/4/2000 Tropical Storm Allison 1381 6/17/2001 Tropical Storm Gabrielle 1393' 9/28/2001 Severe Storms and Flooding 1481 7/29/2003 Hurricane Charley and Tropical Storm Bonnie 1539' 8/13/2004 Hurricane Frances 1545' 9/4/2004 Hurricane Ivan 1551' 9/16/2004 Hurricane Jeanne 15611 9/26/2004 Hurricane Dennis 1595 7/10/2005 Hurricane Katrina 1602' 8/28/2005 Hurricane Wilma 1609' 10/24/2005 Severe Storms and Tornadoes 1679 2/3/2007 Severe Storms,Tornadoes,and Flooding 1680 2/8/2007 Tropical Storm Fay 1785' 8/24/2008 Hurricane Gustav 1806 10/27/2008 Severe Storms,Flooding,Tornadoes,and Straight-line Winds 1831 4/21/2009 Severe Storms,Flooding,Tornadoes,and Straight-line Winds 1840 5/27/2009 Tropical Storm Debby 4068' 7/3/2012 Page 48 Collier County,Florida Floodplain Management Plan March 2015i amec foster wheeler 16417 Co rer County Hazard Type Disaster# Date Hurricane Isaac 4084' 10/18/2012 Severe Storms and Flooding 4138 8/2/2013 Severe Storms,Tornadoes,Straight-line Winds,and Flooding 4177 5/6/2014 Source: FEMA 'Disaster Declaration includes Collier County. A review of the major disaster declaration for Florida indicates that Collier County was included in 15 of the flood related federal disaster declarations between 1960 and 2014. Individual Assistance dollars provide money and services to people in presidentially declared disaster areas. Public Assistance dollars are made available for communities to quickly respond to and recover from major disasters. Total dollars obligated shown in Table 4-3 below is inclusive of all counties included in the disaster declaration. Table 4-3-FEMA Major Disaster Declarations in Florida including Collier County,1960-2014 Received Individual Received Public Assistance Hazard Type Disaster# Date Individual Assistance Public Dollars Assistance Dollars Assistance Obli ated' Declaration? Obligated Declaration? g Hurricane Betsy DR-209 09/14/1965 Yes N/A Yes N/A IA: Broward County,Collier County,Glades County,Hendry County,Lee County,Martin County,Monroe County,Palm Beach County and Saint Lucie County. Counties Included: PA: Broward County,Collier County,Glades County,Hendry County,Lee County,Martin County,Monroe County,Palm Beach County and Saint Lucie County. Hurricane Andrew DR-955 08/24/1992 Yes N/A Yes N/A IA: Broward County,Collier County and Monroe County. Counties Included: PA: Broward County,Collier County and Monroe County. Tornadoes,Flooding, High Winds,Tides, DR-982 03/13/1993 Yes N/A Yes N/A Freezing IA: Alachua County,Baker County,Broward County,Calhoun County,Charlotte County, Citrus County,Collier County,Columbia County,Dixie County,Duval County,Franklin County,Gilchrist County,Glades County,Gulf County,Hamilton County,Hendry County, Hernando County,Hillsborough County,Lafayette County,Lake County,Leon County,Levy County,Manatee County,Marion County,Martin County,Monroe County,Nassau County, Pasco County,Pinellas County,Polk County,Putnam County,Sarasota County,Sumter County, Suwannee County,Taylor County,Volusia County and Wakulla County. Counties Included: PA: Alachua County,Baker County,Broward County,Calhoun County,Charlotte County, Citrus County,Collier County,Columbia County,Dixie County,Duval County,Franklin County,Gilchrist County,Glades County,Gulf County,Hamilton County,Hendry County, Hernando County,Hillsborough County,Lafayette County,Lake County,Leon County,Levy County,Manatee County,Marion County,Martin County,Monroe County,Nassau County, Pasco County,Pinellas County,Polk County,Putnam County,Sarasota County,Sumter County, Suwannee County,Taylor County,Volusia County and Wakulla County. Hurricane Opal DR-1069 10/04/1995 Yes N/A No N/A IA: Bay County,Calhoun County,Collier County,Escambia County,Franklin County,Gulf Counties Included: County,Holmes County,Jackson County,Lee County,Okaloosa County,Santa Rosa County, Taylor County,Wakulla County,Walton County and Washington County. Hurricane Irene DR-1306 10/20/1999 Yes $0 No $106,549,390 IA: Brevard County,Broward County,Collier County,Glades County,Hendry County, Counties Included: Highlands County,Indian River County,Martin County,Monroe County,Okeechobee County, Orange County,Osceola County,Palm Beach County,Polk County,Saint Lucie County, Page 49 Collier County,Florida Floodplain Management Plan S. March 2015 amec foster wheeler Pk. CO ler County 1 6 A 17 Received Individual Received Public Assistance Individual Assistance Public Hazard Type Disaster# Date Assistance Dollars Assistance Dollars Declaration? Obligate& Declaration? Obligated) Seminole County and Volusia County. Tropical Storm DR-1393 09/28/2001 No $0 Yes $23,166,643 Gabrielle PA: Charlotte County,Collier County,DeSoto County,Flagler County,Hardee County, Counties Included: Highlands County,Lee County,Manatee County,Putnam County,Saint Johns County and Sarasota County. Hurricane Charley and DR-1539 08/13/2004 Yes $208,970,754 Yes $613,860,477 Tropical Storm Bonnie (PA-A&B) IA: Brevard County,Charlotte County,Collier County,DeSoto County,Dixie County,Duval County,Flagler County,Glades County,Hardee County,Hendry County,Highlands County, Indian River County,Lake County,Lee County,Levy County,Manatee County,Monroe County,Okeechobee County,Orange County,Osceola County,Pasco County,Polk County, Saint Johns County,Sarasota County,Seminole County and Volusia County. PA: Alachua County,Baker County,Bay County,Bradford County,Brevard County,Broward County,Calhoun County,Charlotte County,Citrus County,Clay County,Collier County, Columbia County,DeSoto County,Dixie County,Duval County,Escambia County,Flagler Counties Included: County,Franklin County,Gadsden County,Gilchrist County,Glades County,Gulf County, Hamilton County,Hardee County,Hendry County,Hernando County,Highlands County, Hillsborough County,Holmes County,Indian River County,Jackson County,Jefferson County, Lafayette County,Lake County,Lee County,Leon County,Levy County,Liberty County, Madison County,Manatee County,Marion County,Martin County,Miami-Dade County, Monroe County,Nassau County,Okaloosa County,Okeechobee County,Orange County, Osceola County,Palm Beach County,Pasco County,Pinellas County,Polk County,Putnam County,Saint Johns County,Saint Lucie County,Santa Rosa County,Sarasota County, Seminole County,Sumter County,Suwannee County,Taylor County,Union County,Volusia County,Wakulla County,Walton Count and Washington County. Hurricane Frances DR-1545 09/04/2004 No $411,862,738 (pA Ae&B) $668,719,258 PA: Alachua County,Baker County,Bay County,Bradford County,Brevard County,Broward County,Calhoun County,Charlotte County,Citrus County,Clay County,Collier County, Columbia County,DeSoto County,Dixie County,Duval County,Escambia County,Flagler County,Franklin County,Gadsden County,Gilchrist County,Glades County,Gulf County, Hamilton County,Hardee County,Hendry County,Hernando County,Highlands County, Hillsborough County,Holmes County,Indian River County,Jackson County,Jefferson County, Counties Included: Lafayette County,Lake County,Lee County,Leon County,Levy County,Liberty County, Madison County,Manatee County,Marion County,Martin County,Miami-Dade County, Monroe County,Nassau County,Okaloosa County,Okeechobee County,Orange County, Osceola County,Palm Beach County,Pasco County,Pinellas County,Polk County,Putnam County,Saint Johns County,Saint Lucie County,Santa Rosa County,Sarasota County, Seminole County,Sumter County,Suwannee County,Taylor County,Union County,Volusia County,Wakulla County,Walton County and Washington County. Hurricane Ivan DR-1551 09/16/2004 No $164,517,308 (AeB) $695,634,604 PA: Bay County,Calhoun County,Charlotte County,Citrus County,Collier County,Dixie County,Escambia County,Franklin County,Gadsden County,Gulf County,Holmes County, Counties Included: Jackson County,Jefferson County,Lee County,Leon County,Levy County,Liberty County, Monroe County,Okaloosa County,Santa Rosa County,Sarasota County,Taylor County, Wakulla County,Walton County and Washington County. Hurricane Jeanne DR-1561 09/26/2004 No $398,624,417 AeB) $521,268,932 (PPage 50 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler 6 A Co ler County / Received Individual Received Public Assistance Hazard Type Disaster# Date Individual Assistance Public Dollars Assistance Dollars Assistance Obligated' Declaration? Obligated' Declaration? g PA: Alachua County,Baker County,Bradford County,Brevard County,Broward County, Charlotte County,Citrus County,Clay County,Collier County,Columbia County,DeSoto County,Dixie County,Duval County,Flagler County,Gilchrist County,Glades County, Hamilton County,Hardee County,Hendry County,Hernando County,Highlands County, Counties Included: Hillsborough County,Indian River County,Jefferson County,Lafayette County,Lake County, Lee County,Leon County,Levy County,Madison County,Manatee County,Marion County, Martin County,Miami-Dade County,Nassau County,Okeechobee County,Orange County, Osceola County,Palm Beach County,Pasco County,Pinellas County,Polk County,Putnam County,Saint Johns County,Saint Lucie County,Sarasota County,Seminole County,Sumter County,Suwannee County,Taylor County,Union County,Volusia County and Wakulla County. Hurricane Katrina DR-1602 08/28/2005 I No $0 Yes $194,338,468 PA: Bay County,Broward County,Collier County,Escambia County,Franklin County,Gulf Counties Included: County,Miami-Dade County,Monroe County,Okaloosa County,Santa Rosa County and Walton County. Hurricane Wilma DR-1609 10/24/2005 Yes $342,257,844 Yes $1,479,851,236 IA: Brevard County,Broward County,Collier County,Glades County,Hendry County,Indian River County,Lee County,Martin County,Miami-Dade County,Monroe County,Okeechobee County,Palm Beach County and Saint Lucie County. Counties Included: PA: Brevard County,Broward County,Charlotte County,Collier County,DeSoto County, Glades County,Hardee County,Hendry County,Highlands County,Indian River County,Lee County,Martin County,Miami-Dade County,Monroe County,Okeechobee County,Osceola County,Palm Beach County,Polk County,Saint Lucie County and Sarasota County. Tropical Storm Fay DR-1785 08/24/2008 Yes $19,216,130 Yes $101,015,840 IA: Alachua County,Baker County,Bradford County,Brevard County,Clay County,Collier County,Duval County,Gadsden County,Glades County,Hendry County,Jefferson County, Lake County,Lee County,Leon County,Liberty County,Madison County,Marion County, Martin County,Nassau County,Okeechobee County,Orange County,Polk County,Saint Lucie County,Seminole County,Taylor County,Volusia County and Wakulla County. PA: Alachua County,Baker County,Bradford County,Brevard County,Calhoun County, Counties Included: Charlotte County,Clay County,Collier County,Dixie County,Duval County,Flagler County, Gadsden County,Glades County,Gulf County,Hamilton County,Hardee County,Hendry County,Highlands County,Jefferson County,Lake County,Lee County,Leon County,Liberty County,Manatee County,Marion County,Martin County,Monroe County,Nassau County, Okeechobee County,Osceola County,Palm Beach County,Putnam County,Saint Johns County, Saint Lucie County,Sarasota County,Seminole County,Suwannee County,Taylor County, Union County,Volusia County and Wakulla County. Tropical Storm Debby DR-4068 07/03/2012 No $27,800,267 Yes $0 PA: Baker County,Bradford County,Charlotte County,Citrus County,Clay County,Collier County,Columbia County,Dixie County,Duval County,Franklin County,Gulf County, Counties Included: Hamilton County,Hernando County,Jefferson County,Lafayette County,Lee County,Levy County,Liberty County,Madison County,Manatee County,Nassau County,Pasco County, Pinellas County,Putnam County,Santa Rosa County,Sarasota County,Suwannee County, Taylor County,Union County and Wakulla County. Hurricane Isaac DR-4084 10/18/2012 No $0 Yes $13,559,332 PA: Bay County,Collier County,Escambia County,Franklin County,Glades County,Gulf Counties Included: County,Martin County,Monroe County,Okaloosa County,Palm Beach County,Saint Lucie County and Santa Rosa County. Source: FEMA,FDEM 1Dollar values are for all Counties included in the disaster declaration and are not solely indicative of Collier Co assistance. N/A=no data available Page 51 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler Co ier County 16A17 4.2 Hazard Profiles 44 CFR Subsection D §201.6(c)(2)(i): [The risk assessment shall include a] description of the...location and extent of all natural hazards that can affect the jurisdiction. The plan shall include information on previous occurrences of hazard events and on the probability of future hazard events. The hazards identified in Section 4.1 Hazard Identification, are profiled individually in this section. Information provided by members of the FMPC has been integrated into this section with information from other data sources. Each hazard is profiled in the following format: Hazard/Problem Description This section provides a description of the hazard followed by details specific to the Collier County planning area. Where available, this section also includes information on the hazard extent, seasonal patterns, speed of onset/duration,magnitude and any secondary effects. • Past Occurrences This section contains information on historical events, including the extent or location of the hazard within or near the Collier County planning area. Frequency/Likelihood of Future Occurrence This section gauges the likelihood of future occurrences based on past events and existing data. The frequency is determined by dividing the number of events observed by the number of years on record and multiplying by 100. This provides the percent chance of the event happening in any given year (e.g. 10 hurricanes or tropical storms over a 30-year period equates to a 33 percent chance of experiencing a hurricane or tropical storm in any given year). The likelihood of future occurrences is categorized into one of the classifications as follows: • Highly Likely—Near 100 percent chance of occurrence within the next year • Likely — Between 10 and 100 percent chance of occurrence within the next year (recurrence interval of 10 years or less) • Occasional — Between 1 and 9 percent chance of occurrence within the next year (recurrence interval of 11 to 100 years) • Unlikely — Less than 1 percent chance or occurrence within the next 100 years (recurrence interval of greater than every 100 years). Those hazards determined to be of high or medium significance were characterized as priority hazards that required further evaluation in Section 4.3 Vulnerability Assessment. Significance was determined by frequency of the hazard and resulting damage, including deaths/injuries and property, crop and economic damage. Hazards occurring infrequently or having little to no impact on the Collier County planning area were determined to be of low significance and not considered a priority hazard. These criteria allowed the FMPC to prioritize hazards of greatest significance and focus resources where they are most needed. The National Oceanic and Atmospheric Administration's National Climatic Data Center (NCDC) has been tracking severe weather since 1950. Their Storm Events Database contains an archive of destructive storm or weather data and information which includes local, intense and damaging events. NCDC Page 52 Collier County,Florida Floodplain Management Plan March 2015 a amec foster wheeler " 16417Coiner County receives Storm Data from the National Weather Service. The National Weather service receives their information from a variety of sources, which include but are not limited to: county, state and federal emergency management officials, local law enforcement officials, SkyWarn spotters, NWS damage surveys, newspaper clipping services, the insurance industry and the general public, among others. The NCDC database contains 67 flood related severe weather events that occurred in Collier County between January 1950 and May 2014. Table 4-4 summarizes these events. Table 4-4-NCDC Severe Weather Reports for Collier County,1950-2014 Type #of Events Property Loss Deaths Injuries Flash Flood 6 $460,000.00 0 0 Flood 4 $0.00 0 0 Coastal Flood 1 $70,000.00 0 0 Heavy Rain 6 $60,000.00 0 0 Hurricane/Typhoon 6 $2,500,000.00 1 0 Storm Surge/Tide 3 $6,060,000.00 0 0 Tropical Depression 0 $0.00 0 0 Tropical Storm 11 $395,000.00 0 0 Waterspout 30 0.00 0 0 Total: 67 $9,545,000.00 1 0 Source: National Climatic Data Center Storm Events Database Note: Losses reflect totals for all impacted areas within Collier County. The FMPC supplemented NCDC data with data from SHELDUSTM (Spatial Hazard Events and Losses Database for the United States). SHELDUSTM is a county-level data set for the United States that tracks 18 types of natural hazard events along with associated property and crop losses, injuries, and fatalities for the period 1960-present. Produced by the Hazards Research Lab at the University of South Carolina, this database combines information from several sources (including the NCDC). Weather-related loss information originates from the National Climatic Data Center's Storm Data. Losses information for geological hazards comes from the National Geophysical Data Center. As needed, SHELDUSTM supplements with additional sources such as U.S.Geological Survey and others. With the release of SHELDUS 13.1, the database includes every loss causing and/or deadly event between 1960 through present. SHELDUSTM reports losses in current and real dollars. Losses for multi- county events are distributed equally across counties with the exception of fatalities and injuries. If details on the location of fatalities and injuries are provided in the original data, SHELDUS® will reflect it. SHELDUSTM contains information on 46 flood-related severe weather events that occurred in Collier County between 1960 and 2014. Table 4-5 summarizes these events. Table 4-5-SHELDUS Severe Weather Reports for Southern Florida,1960-2014 Type Events Property Loss Crop Loss Deaths Injuries Coastal 4 $64,919.00 $0.00 4 1 Flooding 10 $7,671,554.00 $56,566,005.00 0 0 Hurricane/Tropical Storm 25 $13,527,475,180.00 $443,030,549.00 4 56 Severe Storm/Thunder Storm 7 $111,628.00 $0.00 0 4 Total: 46 $13,535,323,281.00 $499,596,554.00 8 61 Source:Hazards&Vulnerability Research Institute(2014). The Spatial Hazard Events and Losses Database for the United States,Version 13.1 [Online Database]. Columbia,SC:University of South Carolina. Available from http://www.sheldus.org Note: Losses have been adjusted for inflation to 2013 dollars. Page 53 Collier County,Florida Floodplain Management Plan March 2015 amec weV foster wheeler Co Ter County 1 16A17 .......--,,,................ The figure below reflects economic losses from hazard events contained within the SHELDUS data set for the entire State of Florida from 1960 - 2009. Collier County ranks among the highest in the State for total property and crop losses. However, as previously noted, SHELDUS loss data is divided equally among the affected counties for each event. The economic losses shown for Collier County should be considered accordingly. Economic Losses from Hazard Events, 1960-2009 ESCAMBIA • _•r A 1 HOLMES JACKSON - WALTON(ASHWGOH ...014' l _ CAOSDEN• BAY CALHouk � LEON 1EfrFA D1' HAMLON LIBERTY` WAKULLA %} ,- UWAN UM::AKEA IXNAL 1 _ CCCCCpppppLLLLL k 1 _� .. TAYLOR - L_, N r J J GUU)FRANKLIN CA1lY L LAF9 yr ICHPo$T ALACHUA DIXIE _ 1 RIJTNAM I, , LEVY .. ,! R: , CITRUS LAKE — UMfE4: :i. \` HERNANOth I PINELLAS 1 HARDEE rr EEC r A \ HIGHLANDS, 'ASOTA DESOTO h '"�1 MARTIN CHARLOTTE] GLADES HE r' J r MO.*. Total Losses(Property and Crop) 23,899,141-80,792,163 FLORIDA 8107,5749 ,1165.1)-.17231,5495698 5,43Source:SHELDUS v.8.0 i'\\\. f , 3 , 92,2 ^ ClassifcatkmQuantiles 7�)/ 292,235,569-1,410,303,870 1 Losses adjusted to 2009 Dollars IIII 1,410,303,871-5,472,511,320 0 3 ;' Mt" Source: SHELDUS v8.0 Page 54 Collier County,Florida Floodplain Management Plan March 2015 '` amec foster wheeler Co1ier County 16A17 The following sections provide profiles of the natural flood hazards that the FMPC identified in Table 4-1 Flood Hazard Summary. 4.2.1 Climate Change and Sea Level Rise Hazard/Problem Description Climate change refers to a change in the state of the climate that can be identified(e.g.,by using statistical tests) by changes in the mean and/or the variability of its properties, and that persists for an extended period, typically decades or longer. Climate change may be due to natural internal processes or external forcings such as modulations of the solar cycles, volcanic eruptions, and persistent anthropogenic changes in the composition of the atmosphere or in land use(IPCC, 2014). Climate change is a natural occurrence in which the earth has warmed and cooled periodically over geologic time. The recent and rapid warming of the earth over the past century has been cause for concern, as this warming is very likely due to the accumulation of human-caused greenhouse gases, such as CO2, in the atmosphere (IPCC, 2007). This warming is occurring almost everywhere in the world which suggests a global cause rather than changes in localized weather patterns. Due to sea-level rise projected throughout the 21st century and beyond, coastal systems and low-lying areas will increasingly experience adverse impacts such as submergence, coastal flooding, and coastal erosion. The population and assets projected to be exposed to coastal risks as well as human pressures on coastal ecosystems will increase significantly in the coming decades due to population growth, economic development, and urbanization (IPCC, 2014). Southwest Florida is particularly vulnerable to the effects of climate change and sea level rise,due to its populous coastal counties,subtropical environment,porous geology and low topography. Seawalls cannot block seawater from infiltrating the porous limestone underground, and saltwater has already contaminated freshwater aquifers. Climate change has the potential to alter the nature and frequency of flood hazards that the County already experiences such as hurricane storm surge, coastal erosion, and stormwater drainage. Sea level rise may also place additional stress on gravity flow stormwater and septic systems due to saltwater corrosion and rising groundwater conditions. An elevated storm surge due to sea level rise could produce a cascade of consequences affecting things such as land use, infrastructure, facilities, waterway navigation,the local economy,public health and safety,drinking water supplies,and ecosystems. The potential for climate change influences on each flood hazard summarized in this plan is noted within each of the hazard's"Frequency/Likelihood of Future Occurrence"discussion section. Past Occurrences There are generally two separate mechanics involved in global sea level rise. The first is directly attributed to global temperature increases, which warm the oceans waters and cause them to expand. The second is attributed to the melting of ice over land which simply adds water to the oceans. Global sea level rise is likely caused by a combination of these two mechanics and can be exasperated on the local level by factors such as erosion and subsidence. The rate of sea level rise has varied throughout geologic history,and studies have shown that global temperature and sea level are strongly correlated. Historic trends in local MSL are best determined from tide gauge records. The Center for Operational Oceanographic Products and Services (CO-OPS) has been measuring sea level for over 150 years, with tide stations operating on all U.S. coasts. Changes in Mean Sea Level(MSL),either a sea level rise or sea level fall,have been computed at 128 long-term water level stations using a minimum span of 30 years of observations at each location. These measurements have been averaged by month to remove the effect of Page 55 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler CoIPr County 16A17 .......-„.....„,, higher frequency phenomena (e.g. storm surge) in order to compute an accurate linear sea level trend. Figure 4-1 illustrates regional trends in sea level from NOAA. Note the dominance of green symbols along the Florida coast. Sea Level Trends East Coast West Coast Gulf Coast Alaska Hawaii Global a as -- ALABAMA -on 'chx.(non Shreveport On A 0 o- ,laokeon memories. o GEORGIA e > Longview 'o -" o- Columbus Savtleh sr as arty Halt osWr9 Dothan Tempt Cdks tetwn IA,9�le 1*� Conroe __.It Pen,01. Taa oassee. Jacksowitle Be t LO LASIANA , GA.,. U HoU8ty tans t „ New tans Gampville dvedon ii■■ t Or+la t n Dayton.Beach Orlando K lsanrome rise aPdn Bey LORIDA Sa,mo10 West Palm i - 00 0,01 FieKn Bou Palm retainers.. Mtni Gwfof Mexico Nap eV 1`-',`'rl: t The Bahamas The map above i0utraka ram bends A sea level,with arrows repneaenbnp the 6mcboa and magnitude ddunge.Click an en arrow Na access addbonal information about that*aeon. I Sea Level Trends rnm yr(feet/century) '; ■156,21(5to7) I 6109(2103) ■310 0)-1 to 0) ■-12 to -9(-4 to-3) •121015(4105) 0 3106(1102) I-610.3(-210-1) ■-1510-12(310.4) • 91012(3104) 10103(0101) •-910.6(310-2) II-1810.15(-6105) Source: http://tidesandcurrents.noaa.gov/sltrends/sltrends.shtml Figure 4-1-Gulf/Atlantic Coast Sea Level Trends Figure 4-2 shows the monthly mean sea level at NOAA's Naples,FL station without the regular seasonal fluctuations due to coastal ocean temperatures, salinities, winds, atmospheric pressures, and ocean currents. The mean sea level trend is 2.40 millimeters/year with a 95% confidence interval of+/- 0.48 nun/yr based on monthly mean sea level data from 1965 to 2013 which is equivalent to a change of 0.79 feet in 100 years. 1 8725110 Naples,Florida 2.40+i- 0.48 mm tyr 0.60 —Linear Mean Sea Level Trend 0.45 - —Upper 95%Confidence interval —Lower 95%Confidence Interval -! Monthly mean sea level with the 0.30-- average seasonal cycle removed 0.15 --- t2 , 11 ', '-- - 1, !' . 0.00 i _� —__.�.__ ..f'.IFaa a.-'• any -0.15 - - - -- - 1- -0.30 -0.45. -0.60 1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 2020 Source: http://tidesandcurrents.noaa.¢ov/sltrends/sltrends.shtml Figure 4-2-Mean Sea Level Trend for Naples,Florida Page 56 Collier County,Florida Floodplain Management Plan March 20154 amec foster wheeler Co icr County 16 A 17 As more data are collected at water level stations, the linear mean sea level trends can be recalculated each year.Figure 4-3 compares linear mean sea level trends and 95%confidence intervals calculated from the beginning of the Naples,FL station record to recent years.The values do not indicate the trend in each year,but the trend of the entire data period up to that year. 8725110 Naples,Florida 4. 3+ 2.82 2.88 2.62 2.64 2.63 2.73 2.68 2.67 2.32 2.40 % 2_06. _ _ 2,07 2.18 2.15 2.16 f1.82 1.91 1.42 1.49 1.5 2 1.63 1.62 1.66 1 0 From 1965 To:2006 2007 2008 2009 2010 2011 2012 2013 Source: http://tidesandcurrents.noaa.gov/sltrends/sltrends.shtml Figure 4-3-Previous Mean Sea Level Trends for Naples,Florida Since 1901,the average surface temperature across the contiguous 48 states has risen at an average rate of 0.14°F per decade (1.4°F per century). Average temperatures have risen more quickly since the late 1970s (0.36 to 0.55°F per decade). Seven of the top 10 warmest years on record for the contiguous 48 states have occurred since 1998, and 2012 was the warmest year on record. Figure 4-4 below, based on data from NOAA and prepared by the EPA, shows how annual average air temperatures have changed in different parts of the United States since 1901. Current science is projecting that the southeastern United States could experience a general increase in average temperatures anywhere from 4.5°F to 9°F in the coming century(Karl et al, 111). Rate of Temperature Change in the United States,1901-2012 t ., ,ms • Foe t - ,: air:" 14 'Alit .01/4Nt Rate of temperature change('f per century): , , I 4 -3 -2 -1 0 1 2 3 4 Gray Internal:-0.1 to 0.1°F Dazs sourosNMA(National oceanic and MnmphencAdMNsaeonn 3.National Cenauc Data Genet.Accessed April2013.wwwncacmaagoWo AIadLMmL For more Information.Ask U.SBAs[7mReaayle Indiums In the United Stater at wwwpagoatImat- echangehmkators. ndiu sIntheUnited5tateratwwwpagowdmat- echange/hdkatoe. Figure 4-4-Rate of Temperature Change in the United States,1901-2012 Page 57 Collier County,Florida Floodplain Management Plan March 2015 amec 4 foster wheeler Co ier County 16A17 Frequency/Likelihood of Future Occurrence Highly Likely-Understanding trends in sea level,as well as the relationship between global and local sea level,provides critical information about the impacts of the Earth's climate on our oceans and atmosphere. Changes in sea level are directly linked to a number of atmospheric and oceanic processes. Changes in global temperatures, hydrologic cycles, coverage of glaciers and ice sheets, and storm frequency and intensity are examples of known effects of a changing climate, all of which are directly related to, and captured in, long-term sea level records. Sea levels provide an important key to understanding the impact of climate change along our coasts. By combining local rates of relative sea level change for a specific area based on observations with projections of global sea level rise, communities can plan for the impacts of sea level rise(NOAA,2014). The U.S. Army Corps of Engineers (USACE) has provided guidance to evaluate designs over a project's life cycle in order to account for the rise of global mean sea level (USACE, 2011). The USACE guidance is based on original guidance by the National Research Council (NRC, 1987). The 1987 NRC report recommended that feasibility studies for coastal projects consider the high probability of accelerating global mean sea level (GMSL) rise and provided three different acceleration scenarios through the year 2100. The 1987 NRC report described these three scenarios using the following equation: 2 E(t)=0.0012mm/yr*t+bt [Equation 1] in which t represents years, starting in 1986, b is a constant, and E(t) is the eustatic sea-level change, in meters, as a function of t. The NRC committee recommended "projections be updated approximately every decade to incorporate additional data." As shown in Equation 2, the USACE guidance adjusted Equation 1 to include the historic GMSL change rate of 1.7 mm/year as presented by the IPCC(IPCC, 2007)and the start date of 1992(which corresponds to the midpoint of the National Tidal Datum Epoch of 1983-2001), instead of 1986 (the start date for Equation 1), which resulted in updated values for the variable b being equal to 2.71E-5 for modified NRC Curve I,7.00E-5 for modified NRC Curve II, and 1.13E-4 for modified NRC Curve III. The three updated GMSL rise acceleration scenarios are depicted in Figure 4-5 on the following page. 2 E(t)=0.0017mm/yr*t+bt [Equation 2] Based on the USACE guidance and data from the nearest open Gulf tide gauge to Collier County with at least 40 years of record, a projected sea level rise to be used for future planning decisions can be calculated. As shown previously in Figure 4-3, sea level trends through 2013 at the Naples, FL station range from 1.91 mm/yr to 2.88 mm/yr with a mean of 2.40 mm/year. Page 58 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler Co -rer County 16 /U ? 1.6 1 4 - Modified NRC-III E • rn 1.2 - 0 a 1 0 — a a N ' H• 0.8 - odified NRC-II ix m ' 0.6 m . B 0.4 - Modified NRC-I 7 • 02 - 00 — % °o O'o ?o 2D�o 4'0 % neo �o °o 90 '°o ''o Year Source: USACE,2011 Figure 4-5-Scenarios for Global Mean Sea Level Rise Using the three acceleration scenarios and the low,mean and high sea level trends recorded at the Naples, FL station,Table 4-6 details the entire range of sea level rise projections for Collier County. Table 4-6-Projected Sea Level Rise for Collier County Sea Level Trend t b tZ Project Rise Projected Rise (m/yr) (years) (m) (ft) Low 0.00191 47 0.0000271 2209 0.150 0.491 Mean 0.00240 47 0.0000271 2209 0.173 0.566 High 0.00288 47 0.0000271 2209 0.195 0.640 Sea Level Trend t b t2 Project Rise Projected Rise (m/yr) (years) (m) (ft) Low 0.00191 47 0.00007 2209 0.244 0.802 Mean 0.0024 47 0.00007 2209 0.267 0.877 High 0.00288 47 0.00007 2209 0.290 0.951 Sea Level Trend b tZ Project Rise Projected Rise (m/yr) (years) (m) (ft) Low 0.00191 47 0.000113 2209 0.339 1.113 Mean 0.0024 47 0.000113 2209 0.362 1.189 High 0.00288 47 0.000113 2209 0.385 1.263 Page 59 Collier County,Florida Floodplain Management Plan March 2015 amec 41, foster wheeler Jr , unty 16A17 As shown in Table 4-6, sea level rise projections for Collier County range from 0.49 feet to 1.26 feet. The Collier County FMPC has elected to use the moderate acceleration scenario and the mean sea level trend for Naples, FL (highlighted in the table above). Therefore, Collier County should consider a projected 0.88 feet of sea level rise through 2060 for future planning purposes(detailed equation is shown below). Moderate Scenario: E(t)=.00240 m/year*47yr+7.00E-5* (47yr)2=0.267 m(0.88 ft.) 4.2.2 Coastal/Canal Bank Erosion Hazard/Problem Description Coastal Erosion Coastal erosion is a process whereby large storms,flooding,strong wave action,sea level rise,and human activities, such as inappropriate land use, alterations, and shore protection structures, wears away the beaches and bluffs along the coast. Erosion undermines and often destroys homes,businesses,and public infrastructure and can have long-term economic and social consequences. According to NOAA, coastal erosion is responsible for approximately $500 million per year in coastal property loss in the United , States, including damage to structures and loss of land. To mitigate coastal erosion, the federal government spends an average of $150 million every year on beach nourishment and other shoreline erosion control measures. Coastal erosion has both natural causes and causes related to human activities. Gradual coastal erosion/replenishment results naturally from the impacts of tidal longshore currents. Severe coastal erosion can occur over a very short period of time when the state is impacted by hurricanes, tropical storms and other weather systems. Sand is moved parallel to most beaches in Florida by longshore drift and currents. Sand is continually removed by longshore currents in some areas but it is also continually replaced by sand carried in by the same type of currents. Structures such as piers or sea walls,jetties,and navigational inlets may interrupt the movement of sand. Sand can become "trapped" in one place by these types of structures. The currents will, of course, continue to flow, though depleted of sand trapped elsewhere. With significant amounts of sand trapped in the system, the continuing motion of currents (now deficient in sand) results in erosion. In this way, human construction activities that result in the unnatural trapping of sand have the potential to result in significant coastal erosion. Erosion rates and potential impacts are highly localized. Severe storms can remove wide beaches, along with substantial dunes,in a single event. In undeveloped areas,these high recession rates are not likely to cause significant concern, but in some heavily populated locations, one or two feet of erosion may be considered catastrophic(NOAA,2014). Canal Bank Erosion Streams/canals erode by a combination of direct stream processes, such as down cutting and lateral erosion, and indirect processes, such as mass-wasting accompanied by transportation. When the channel bends, water on the outside of the bend (the cut-bank) flows faster and water on the inside of the bend (the point)flows slower as shown in Figure 4-6. This distribution of velocity results in erosion occurring on the outside of the bend and deposition occurring on the inside of the bend. Page 60 Collier County,Florida Floodplain Management Plan March 2015 amec foster` wheeler CorCounty„ ........................ 1 6 A 1. 7 A A' N-,,,________Jo mur— ity Maximum velocity A A' NN i 111W J B C' C C ‘ - \ li Figure 4-6-Stream Meanders Stream bank erosion is a natural process, but acceleration of this natural process leads to a disproportionate sediment supply, stream channel instability, land loss, habitat loss and other adverse effects. Stream bank erosion processes, although complex, are driven by two major components: stream bank characteristics (erodibility) and hydraulic/gravitational forces. Many land use activities can affect both of these components and lead to accelerated bank erosion. The vegetation rooting characteristics can protect banks from fluvial entrainment and collapse, and also provide internal bank strength. When riparian vegetation is changed from woody species to annual grasses and/or flowering plants, the internal strength is weakened, causing acceleration of mass wasting processes. Stream bank aggradation or degradation is often a response to stream channel instability. Since bank erosion is often a symptom of a larger, more complex problem, the long-term solutions often involve much more than just bank stabilization. Numerous studies have demonstrated that stream bank erosion contributes a large portion of the annual sediment yield. Determining the cause of accelerated streambank erosion is the first step in solving the problem. When a stream is straightened or widened, streambank erosion increases. Accelerated streambank erosion is part of the process as the stream seeks to re-establish a stable size and pattern. Damaging or removing streamside vegetation to the point where it no longer provides for bank stability can cause a dramatic increase in bank erosion. A degrading streambed results in higher and often unstable, eroding banks. When land use changes occur in a watershed, such as clearing land for agriculture or development,runoff increases. With this increase in runoff the stream channel will adjust to accommodate the additional flow, increasing streambank erosion if appropriate erosion protection methods are not installed. Addressing the problem of streambank erosion requires an understanding of both stream dynamics and the management of streamside vegetation. Past Occurrences I A report updated in June 2014 by the Florida Department of Environmental Protection(DEP),Division of Water Resource Management, titled "Critically Eroded Beaches in Florida” inventoried critically eroded areas along the Atlantic and Gulf coasts. The following definition was used to identify critically eroded areas: Page 61 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler Corr County Critically eroded area is a segment of the shoreline where natural processes or human activit} ha A 1 7 caused or contributed to erosion and recession of the beach or dune system to such a degree that upland development, recreational interests, wildlife habitat, or important cultural resources are threatened or lost. Critically eroded areas may also include peripheral segments or gaps between identified critically eroded areas which, although they may be stable or slightly erosional now, their inclusion is necessary for continuity of management of the coastal system or for the design integrity of adjacent beach management projects(page 5). In some areas the erosion processes are not particularly significant except to the extent that adjacent public or private interests may be threatened. Whether erosion is deemed critical is determined by the existence of a threat to interests in need of protection. Lacking any threat an erosion condition is not a critical problem. According to the Florida DEP report,there are eight critically eroded beach areas (14.8 miles), three non- critically eroded beach areas(5.1 miles),and one critically eroded inlet shoreline area(0.8 mile)in Collier County(page 14). In northern Collier County, a 0.4-mile beach segment north of Wiggins Pass (R14-R16.3) is critically eroded threatening sea turtle and gopher tortoise habitat. A 1.6-mile beach segment (R22.3-R30.5) is critically eroded threatening development interests in Vanderbilt Beach. This area has a beach restoration project and numerous bulkheads. The City of Naples has two segments that are critically eroded threatening development interests north and south of Doctors Pass. North of Doctors Pass (R45-R57.5) is a 2.4-mile critically eroded segment with the northern 1.1 mile included for the design integrity of the beach restoration project. Between Doctors Pass and Gordon Pass (R57.8-R89) is a 5.6-mile critically eroded segment. These areas of Naples have continuous beach restoration projects. Numerous bulkheads and revetments also exist throughout Naples. Groins exist north of Gordon Pass. South of Gordon Pass (R90-R111) is a 3.9-mile stretch that is non-critically eroded along the northern half of Keewaydin Island. Between Little Marco Pass and Capri Pass, Sea Oat Island has 0.9 mile of beach that is non-critically eroded. Marco Island has three areas that are critically eroded threatening development interests. Along Hideaway Beach, the north shore of Marco Island (H3-H11) fronting on Big Marco Pass has 0.8 mile of inlet shoreline that is critically eroded. The central gulf beach of Marco Island (R134.5R139) has 0.8 mile that is critically eroded and the southern stretch of beach (R143-R148) has 0.9 mile that is critically eroded. All three critically eroded areas on Marco Island have beach restoration projects, and the northern segment also has a rock groin field along Hideaway Beach. Erosion on the two southern barrier islands in Collier County has progressed into the backshore mangrove forest resulting in the loss of beach wildlife habitat. Following Hurricane Wilma (2005), a 1.6-mile segment of Kice Island(V23-V31.4)is critically eroded. South of Morgan Pass,Morgan Island has a 1.5- mile segment (V33.8-V41.8) that is critically eroded and a 0.3mile segment (V41.8-V43.5) that is non- critically eroded. Page 62 Collier County,Florida Floodplain Management Plan �. March 2015 amec foster wheeler ColLLier County 16A1I/ 1 1 June,2014 Collier County Location Classification Lee County R014 -R016 3 Critical R022.3-R030.5 Critical ? _ _ R045-R089 Critical `� — I R090-R111 Noncritical Jl"aggSts , : . Paas It.' 4 Sea Oat Island Noncritical r• . 1 H3-Hit Critical tietY-- — ..m. R134.5-R139 Critical R143-R148 Critical rA f ---i V023-V031 4 Critical , , . I _ V033_8-V041.8 Critical V041.9-V043.5 Noncntical Park Shore r'-. r 1 ,,. ,y . IR 1 i 1 Doctors Pass .• • , tat 1147 , Symbology -•.- Rang*MlanuntsNaples .:11 i Melo+Reacts 7 ! Erosion Classifications Gordon Pam , r ot` .-- ___,_ Cntical '• `. - Coecal Inlet -Noncralcalo AO Keearaydin island ,', ; t t. k Little Marco Pass .p. T • SN QS'SIM X, s`' Y Com'Awn "'+`.. "'ik 11 'Oft=Pin A. 4 . Gulf Of MexicoMarco Island 'IN tlf,dijo 0,1, 7 ...,..1.. -- Caxaimhas • Pala •c a: - ' 0 1.5 3 6 9 12 Kice Islandt�- Mies Morgan Pass Kltometers Morgan Island T tr r 0 2 4 8 12 16 Cape Romano Source: Florida Department of Environmental Protection,Division of Water Resource Management,Bureau of Beaches and Coastal Systems,Critically Eroded Beaches in Florida,Updated June 2014 Page 63 Collier County,Florida Floodplain Management Plan March 2015 !a' amec foster wheeler %� 16A17 Col. t r County Frequency/Likelihood of Future Occurrence Highly Likely - In general, the low dune elevations along the Gulf of Mexico make this region more vulnerable to erosion hazards during hurricanes. Average dune elevations along the shores of the Gulf of Mexico are just 2.4 meters high, making approximately 71% of these beaches very likely to experience extreme erosion due to overwash in the direct landfall of a category 1 storm. In the Gulf of Mexico, waves play a large role in elevating shoreline water levels. During a category 1 hurricane in the Gulf of Mexico, the contribution of waves to storm-induced extreme water levels is nearly twice that of surge. Based on annual monitoring reports from 1998 to 2014, Collier County has typically experienced 50,000 cubic feet of coastal erosion per year. The United States Geological Survey (USGS) completed a national assessment of hurricane-induced coastal erosion hazards in 2013 which provides the following key findings for the Gulf of Mexico: • For a category 1 hurricane landfall, 99% of sandy beaches along the U.S. Gulf of Mexico coast are very likely (P>90%) to experience dune erosion, 71% are very likely to overwash, and 27% are very likely to inundate. • For category 5 hurricane landfall, 98% of the U.S. Gulf of Mexico beaches are very likely to experience overwash and associated erosion, and 89% are very likely to be vulnerable to erosion due to inundation. • During a category 1 hurricane landfall in the Gulf of Mexico, waves increase water levels at the shoreline, on average, by 170% above surge alone. The predicted wave-driven component of shoreline water levels was 2.8 meters, high enough to erode the Gulf-coast averaged dune toe elevation (1.1 meters) as well as overwash the average dune crest (2.4 meters), even without surge. • Hurricanes are not required for significant coastal change in the Gulf region. Waves and storm surge associated with tropical storms and winter cold fronts provide sufficient energy to put low- elevation beaches and dunes at risk to erosion. Climate Change and Coastal/Canal Bank Erosion Sea-level rise will raise all tide levels, from low tide to storm surge (see Figure 4-7). Wave action at higher tide levels may cause erosion of sandy beaches. The combined effects of wind and waves could damage dunes, leaving the beachfront more vulnerable (UF/IFAS Extension, 2013). According to the existing Flood Insurance Study for Collier County effective May 16, 2012, the existing dunes in many areas along the Collier County shoreline are insufficient to sustain wave attack associated with the 1- percent-annual-chance flood. The 2012 FIS Report and FIRM maps can be viewed at http://msc.fema.gov/portal. Page 64 Collier County,Florida Floodplain Management Plan March 2015a amec foster wheeler • SLEunty mainland bay barrier island ocean s t storm surge storm surge sea-level rrse ;,k . sea-levet rise Figure 4-7-Sea Level Rise and Coastal Erosion of Dunes Credits: Jane Hawkey,IAN Image Library(ian.umces.edu/imagelibrary/) According to the Center for Ocean Solutions, there has been a dramatic increase in coastal erosion over the last two decades and this is expected to continue as sea level rises and storm frequency and severity increase. Rather than occurring over the same time scale with sea level rise, erosion of beaches and coastal cliffs is expected to occur in large bursts during storm events as a result of increased wave height and storm intensity. Because of these large events, scientific models predict that shoreline erosion may outpace sea level rise by 50 to 200 fold. Erosion will have significant effects on coastal habitats, which can lead to social and economic impacts on coastal communities. With the reduction of coastal habitats and the ecological services they provide, coastal communities will experience more frequent and destructive flooding, compromised water supplies and smaller or fewer beaches. According to the U.S. EPA, a 1-foot rise would erode most Florida beaches 100-200 feet unless measures were taken to hold back the sea. A 3-foot rise would require the state to spend $4 to 8 billion just to replace the sand that would be lost to beach erosion. 4.2.3 Dam/Levee Failure Hazard/Problem Description Dam Failure A dam is a barrier constructed across a watercourse that stores, controls, or diverts water. Dams are usually constructed of earth, rock, or concrete. The water impounded behind a dam is referred to as the reservoir and is measured in acre-feet. One acre-foot is the volume of water that covers one acre of land to a depth of one foot. Dams can benefit farm land, provide recreation areas, generate electrical power, and help control erosion and flooding issues. A dam failure is the collapse or breach of a dam that causes downstream flooding. Dam failures may be caused by natural events, human-caused events, or a combination. Due to the lack of advance warning, failures resulting from natural events, such as hurricanes, earthquakes, or landslides, may be particularly severe. Prolonged rainfall and subsequent flooding is the most common cause of dam failure. Dam failures usually occur when the spillway capacity is inadequate and water overtops the dam or when internal erosion in dam foundation occurs (also known as piping). If internal erosion or overtopping cause a full structural breach, a high-velocity, debris-laden wall of water is released and rushes downstream, damaging or destroying anything in its path. Overtopping is the primary cause of earthen dam failure in the United States. Page 65 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler Collier County 16A17 Dam failures can result from any one or a combination of the following: • Prolonged periods of rainfall and flooding; • Inadequate spillway capacity,resulting in excess overtopping flows; • Internal erosion caused by embankment or foundation leakage or piping; • Improper maintenance,including failure to remove trees,repair internal seepage problems, replace lost material from the cross-section of the dam and abutments,or maintain gates,valves, and other operational components; • Improper design,including the use of improper construction materials and construction practices; • Negligent operation,including the failure to remove or open gates or valves during high flow periods; • Failure of upstream dams on the same waterway; and • High winds,which can cause significant wave action and result in substantial erosion. Water released by a failed dam generates tremendous energy and can cause a flood that is catastrophic to life and property. A catastrophic dam failure could challenge local response capabilities and require evacuations to save lives. Impacts to life safety will depend on the warning time and the resources available to notify and evacuate the public. Major casualties and loss of life could result, as well as water quality and health issues. Potentially catastrophic effects to roads, bridges, and homes are also of major concern. Associated water quality and health concerns could also be issues. Factors that influence the potential severity of a full or partial dam failure are the amount of water impounded; the density, type, and value of development and infrastructure located downstream; and the speed of failure. The National Inventory of Dams (NID) is a database of dams in the United States which was developed and is maintained by the USACE. Congress authorized the USACE to inventory dams as part of the 1972 National Dam Inspection Act. Several subsequent acts have authorized maintenance of the NID and provided funding. The USACE collaborates with FEMA and state regulatory offices to collect data on dams. The goal of the NID is to include all dams in the United States which meet at least one of the following criteria: 1. High hazard classification-loss of at least one human life is likely if the dam fails 2. Significant hazard classification - possible loss of human life and likely significant property or environmental destruction 3. Low hazard or undetermined classification — dams equal or exceed 25 feet in height and exceed 15 acre-feet in storage 4. Low hazard or undetermined classification—dams equal or exceed 50 acre-feet storage and exceed 6 feet in height Low hazard dams which do not meet the criteria specified in number 3 or 4 are not included in the ND even if they are regulated according to state criteria. In some states, the number of these dams is several times the number of dams included in the NID. Figure 4-8 reflects all dams included in the NID that are located in and around Collier County. As shown, there is only one dam located within the jurisdictional boundaries of Collier County: the State Road 846 Land Trust earthen dam which is not classified as a high or significant hazard. Table 4-7 provides details for this dam as provided in the NID. The State Road 846 Land Trust earthen dam is located on private property and a current aerial image identifies there is no water present. The earthen dam is agricultural in nature and there are no residential properties within a mile. Therefore, the extent of the hazard is too Page 66 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler Col ter County 1 17 .........„.„, negligible to calculate and the impacts of failure would not affect the general public, structures, or infrastructure. Eter. o CREW Flint Pen Strand ':rrkserp,a, i i s -SpnngKonig. .. ,. .rP t . Bird Rookeiy „ I Swamp , North NaplesAi nt ` Florida Panther 75 = National It Wildlife Refuge t- :!.olden Gate f '93 CD Naples I \ \ - iy Resort a at Fakahatchee Strand Preserve State Park C:ol(ter-Semino • State Park`s ;Big Cypress Marc:::Isitind National 11.P.4"--AQ' Preserve UI ::.:Joivan Bay -0.04 '' ....... „-.m"+ . C oln SraP' Ray v Source: U.S.Army Corps of Engineers,National Inventory of Dams Figure 4-8-National Inventory of Dams for Collier County Table 4-7-National Inventory of Dams,Collier County Height NID Hazard Dam Name NIDID Owner (Ft.) Storage Dam Type Classification River (acre-feet) St.Road 846 St.Road Land Trust FL75010 846 Land 9 350 Earthen Low Cocohatchee IMP Trust Source: U.S.Army Corps of Engineers,National Inventory of Dams Levee Failure FEMA defines a levee as "a man-made structure, usually an earthen embankment, designed and constructed in accordance with sound engineering practices to contain, control, or divert the flow of water in order to reduce the risk from temporary flooding." Levee systems consist of levees, floodwalls, and Page 67 Collier County,Florida Floodplain Management Plan March 2015i amec 4 foster wheeler Copier County,......,..........., 16A17 associated structures, such as closure and drainage devices, which are constructed and operated in accordance with sound engineering practices. Levees often have"interior drainage" systems that work in conjunction with the levees to take water from the landward side to the water side. An interior drainage system may include culverts,canals,ditches,storm sewers,and/or pumps. Levees and floodwalls are constructed from the earth, compacted soil or artificial materials, such as concrete or steel. To protect against erosion and scouring, earthen levees can be covered with grass and gravel or hard surfaces like stone, asphalt, or concrete. Levees and floodwalls are typically built parallel to a waterway, most often a river, in order to reduce the risk of flooding to the area behind it. Figure 4-9 below shows the components of a typical levee. k t Freeboard 4 C Toe Flood _ Depth „iiiiivilt � rt Source: FEMA,What is a Levee Fact Sheet,August 2011 Figure 4-9-Components of a Typical Levee Levees provide strong flood protection,but they are not failsafe. Levees are designed to protect against a specific flood level and could be overtopped during severe weather events. Levees reduce, not eliminate, the risk to individuals and structures behind them. A levee system failure or overtopping can create severe flooding and high water velocities. It is important to remember that no levee provides protection from events for which it was not designed, and proper operation and maintenance are necessary to reduce the probability of failure. Figure 4-10 below reflects all levees included in the U.S. Army Corps of Engineers National Levee Database (NLD) that are located in or around Collier County. Levee centerlines are indicated in purple. Table 4-8 details all levees located in Collier County as included in the NLD. Page 68 Collier County,Florida Floodplain Management Plan March 2015 amec 4 foster wheeler Co r' County 1 6 ......„„„ , (, _.„ Estero Bay .ea Pen Syr { Corkscrew • Bonita a Springs .,. a, ii tlirdRookery 'VS• ___. ' 'Swamp __. ` North a Naples � $' Q..... \.. Flwide Panther • Natrona! 1 L1 Widdi*Re olden Gate 4m 0 s .-9 Naples Lely Resort J. Fakahatchee Strand Preserve State Park Collier-Seminole.. a w '`StatePark ' Big Cypress Marco Island . at National r '''It Preserve '"' ,---— _ r s - .4�_ Gunman dray u, ,.,,,. `- 41 Chakm'aswee' ��"`�"""� 8ax r. Tic Alii. Source: U.S.Army Corps of Engineers National Levee Database Figure 4-10-National Levee Database for Collier County Table 4-8-National Levee Database,Collier County Planning Area Counties System Name Sponsor Length Inspection Leveed Area (mi) Rating Type East Big Cypress Minimally Broward,Collier,Hendry Seminole IR SFWMD 26.1 Acceptable Agricultural Broward,Collier,Miami- Dade,Monroe L-29 SFWMD 45.4 Unacceptable Agricultural Past Occurrences There are no past reported dam breaches or levee failures within Collier County. Frequency/Likelihood of Future Occurrence Unlikely —There are no high or significant hazard dams that could impact Collier County. Since no occurrences of levee failure have happened and there are no significant levees in the County, future levee failure is unlikely. Climate Change and Dam/Levee Failure Given the fact that there are no high or significant hazard dams or levees that would affect the County, climate change is unlikely to change the risk of the County to dam and/or levee failure. However, future levees and sea walls may need to be built to combat the effects of sea level rise and storm surge which would affect future risk. Page 69 Collier County,Florida Floodplain Management Plan � March 2015 -A' amec foster wheeler Co ler County16A17 4.2.4 Flood: 100-/500-year Hazard/Problem Description Flooding is defined by the rising and overflowing of a body of water onto normally dry land. According to the USGS, floods are caused by weather phenomena and events that deliver more precipitation to a drainage basin than can be readily absorbed or stored within the basin. Flooding can result from an overflow of inland or tidal waters or an unusual accumulation or runoff of surface waters from any source. Flooding within Collier County can be attributed to tidal flooding resulting from hurricanes and tropical storms and heavy rainfall that overburdens the drainage system within the community. Certain health hazards are also common to flood events. While such problems are often not reported, three general types of health hazards accompany floods. The first comes from the water itself. Floodwaters carry anything that was on the ground that the upstream runoff picked up, including dirt, oil, animal waste, and lawn,farm and industrial chemicals. Pastures and areas where farm animals are kept or their wastes are stored can contribute polluted waters to the receiving streams. Floodwaters also saturate the ground, which leads to infiltration into sanitary sewer lines. When wastewater treatment plants are flooded, there is nowhere for the sewage to flow. Infiltration and lack of treatment can lead to overloaded sewer lines that can back up into low-lying areas and homes. Even when it is diluted by flood waters, raw sewage can be a breeding ground for bacteria such as e.coli and other disease causing agents. The second type of health problem arises after most of the water has gone. Stagnant pools can become breeding grounds for mosquitoes, and wet areas of a building that have not been properly cleaned breed mold and mildew. A building that is not thoroughly cleaned becomes a health hazard, especially for small children and the elderly. Another health hazard occurs when ducts in a forced air system are not properly cleaned after inundation. When the furnace or air conditioner is turned on, the sediments left in the ducts are circulated throughout the building and breathed in by the occupants. If the county water system loses pressure, a boil order may be issued to protect people and animals from contaminated water. The third problem is the long-term psychological impact of having been through a flood and seeing one's home damaged and personal belongings destroyed. The cost and labor needed to repair a flood-damaged home puts a severe strain on people, especially the unprepared and uninsured. There is also a long-term problem for those who know that their homes can be flooded again. The resulting stress on floodplain residents takes its toll in the form of aggravated physical and mental health problems. Sources and Types of Flooding According to the 2012 Flood Insurance Study (FIS) for Collier County, flooding results from two major sources in the County. Coastal areas are subject to inundation from ocean surges, whereas inland areas become flooded when rainfall accumulates in low, flat areas. Rainfall occurs primarily during thunderstorms in the summer months, with additional rainfall resulting from the passage of hurricanes. A transition region near the coast is vulnerable to both rainfall and ocean surge flooding. Coastal lands typically lie below an elevation of 9 feet, North American Vertical Datum of 1988 (NAVD88), and are subject to flooding from hurricanes and tropical storms. The general topography of Collier County is extremely flat, with land slopes on the order of 1 foot per mile to 0.5 foot per mile in the interior regions. There are no major natural streams,such as those found in areas of steeper topography. Instead, flow occurs over wide, flat areas, in sloughs, and through manmade Page 70 Collier County,Florida Floodplain Management Plan March 2015 y amec foster wheeler Co ler 16A17 canal systems. Natural well-drained drainage channels are apparent only close to the coast. The lack of steep slopes precludes rapid runoff; therefore, water accumulates in ponded areas and slowly infiltrates the groundwater system or sluggishly drains over the land. Coastal (Tidal) Flooding: All lands bordering the coast along the Gulf of Mexico are prone to tidal affects/flooding. Coastal land such as sand bars, barrier islands and deltas provide a buffer zone to help protect human life and real property relative to the sea much as floodplains provide a buffer zone along rivers and other bodies of water. Coastal floods usually occur as a result of abnormally high tides or tidal waves, storm surge and heavy rains in combination with high tides,tropical storms and hurricanes. Overland Sheet Flow: Because of the relative flatness of the topography of Collier County, historical flow has always been shallow overland sheet flow during the wet season. During the wet season, overland sheet flow enters the sloughs and man-made canal systems. Shallow Ponding: Because much of the County is flat, whatever rainfall doesn't sheet flow from an area tends to pond and percolate into the ground,causing water tables to rise during the wet season to within a foot or less of the ground in most of Collier County, so there is little soil storage. Flooding in Collier County is a factor of the amount and timing of rainfall and the tide cycle elevation. The same amount of rainfall occurring in March would not have the same flooding effect as if it occurred in September. During the dry season the water table elevation typically drops to several feet below natural ground elevations. This creates a large storage volume in the soil, lakes, canals, ditches and swales. However during the wet season the water table elevation is often very near the natural ground surface, lakes are filled, and ditches are flowing. The rainfall added to this wet season condition creates much more stormwater runoff that must be handled by the stormwater system facilities, creeks, rivers, and natural flowways. While each 24-hour duration rainfall event is different, during a wet season (meaning an above average wet season rainfall amount) a 3 to 4 inch event will typically produce only limited yard and street flooding for a few hours;a 5 to 6 inch event will typically produce moderate to substantial yard, street and major roadway flooding with an occasional structure flooding; and a 7 inch or more event will typically produce extensive yard, street and major roadway flooding with increased probability of structure flooding. Flooding and Floodplains In its common usage,the floodplain most often refers to that area that is inundated by the 100-year flood, the flood that has a 1% chance in any given year of being equaled or exceeded. A floodplain is the flat or nearly flat land adjacent to a stream or river that experiences occasional or periodic flooding. It includes the floodway, which consists of the stream channel and adjacent areas that carry flood flows, and the flood fringe, which are areas covered by the flood, but which do not experience a strong current. It should be noted that due to the nature of flooding in Collier County (coastal and ponding), no floodways were computed as part of the 2012 FIS. The 100-year flood is the national minimum standard to which communities regulate their floodplains through the National Flood Insurance Program (NFIP). The 500-year flood is the flood that has a 0.2 percent chance of being equaled or exceeded in any given year. The potential for flooding can change and increase through various land use changes and changes to land surface, which result in a change to the floodplain. A change in environment can create localized flooding problems inside and outside of natural floodplains by altering or confining natural drainage channels. These changes are most often created by human activity. Page 71 Collier County,Florida Floodplain Management Plan March 2015 amec vtir foster wheeler �.Co ler County 167 Participation in the NFIP requires adoption and enforcement of a local floodplain management ordinance which is intended to prevent unsafe development in the floodplain, thereby reducing future flood damages. Participation in the NFIP allows for the federal government to make flood insurance available within the community as a financial protection against flood losses. Since floods have an annual probability of occurrence,have a known magnitude,depth and velocity for each event,and in most cases, have a map indicating where they will occur, they are in many ways often the most predictable and manageable hazard. Regulated floodplains are illustrated on inundation maps called Flood Insurance Rate Maps (FIRMs). It is the official map for a community on which FEMA has delineated both the special flood hazard areas (SFHAs) and the risk premium zones applicable to the community. SFHAs represent the areas subject to inundation by the 1-percent-annual chance flood event. Structures located within the SFHA have a 26- percent chance of flooding during the life of a standard 30-year mortgage. Flood zones are geographic areas that FEMA has defined according to varying levels of flood risk and type of flooding. Flood prone areas were identified within Collier County using the most current FIS and associated FIRMs developed by FEMA dated May 16, 2012. Collier County's ordinance adoption date was January 24, 2012 with an effective date of March 30, 2012 for development application compliance, and May 16, 2012 for flood insurance compliance. Table 4-9 summarizes the flood insurance zones identified by the FIRMs. Table 4-9—Mapped Flood Insurance Zones within Collier County Zone Description Also known as the coastal high hazard areas. They are areas subject to high velocity water including waves;they are defined by the 1% annual chance(base)flood limits(also known as VE the 100-year flood) and wave effects 3 feet or greater. The hazard zone is mapped with base flood elevations (BFEs) that reflect the combined influence of stillwater flood elevations, primary frontal dunes,and wave effects 3 feet or greater. AE Zones,also within the 100-year flood limits,are defined with BFEs that reflect the combined influence of stillwater flood elevations and wave effects less than 3 feet.The AE Zone generally extends from the landward VE zone limit to the limits of the 100-year flood from coastal AE sources,or until it reaches the confluence with riverine flood sources.The AE Zones also depict the SFHA due to riverine flood sources,but instead of being subdivided into separate zones of differing BFEs with possible wave effects added,they represent the flood profile determined by hydrologic and hydraulic investigations and have no wave effects. Areas subject to inundation by 1-percent-annual-chance shallow flooding (usually areas of AH ponding)where average depths are 1-3 feet.BFEs derived from detailed hydraulic analyses are shown in this zone. Areas subject to inundation by the 1-percent-annual-chance flood event generally determined A using approximate methodologies. Because detailed hydraulic analyses have not been performed, no Base Flood Elevations (BFEs) or flood depths are shown. Mandatory flood insurance purchase requirements and floodplain management standards apply. Moderate risk areas within the 0.2-percent-annual-chance floodplain,areas of 1-percent-annual- 0.2% Annual Chance chance flooding where average depths are less than 1 foot,areas of 1-percent-annual-chance (shaded Zone X)or flooding where the contributing drainage area is less than 1 square mile,and areas protected X-500 from the 1-percent-annual-chance flood by a levee.No BFEs or base flood depths are shown within these zones.(Zone X(shaded)is used on new and revised maps in place of Zone B.) Minimal risk areas outside the 1-percent and.2-percent-annual-chance floodplains.No BFEs or Zone X(unshaded) base flood depths are shown within these zones.(Zone X(unshaded)is used on new and revised maps in place of Zone C.) Page 72 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler Col rer County 16 A 7 Figure 4-11 reflects the mapped flood insurance zones for Collier County. The coastal portions of the county are comprised of Zone VE and Zone AE SFHAs. The northwestern portion of the county is primarily Zone AH with small areas of Zone AE. The eastern portion of the county is primarily Zone A. A summary of acreage by flood zone is as follows: Zone VE(57,626 Acres); Zone AE(296,071 Acres); Zone AH (280,608 Acres); Zone A (660,494 Acres); Zone X 500-yr (19,980 Acres); and Zone X unshaded(37,236 Acres). /s/Major Roads Municipalities amec 14g k Immokalee Indian Reservation €a.? 7 Unincorporated Ames foster Counties wheeler Zone(,kyr) mokalee ZoneAE(100r) 19 Zona VE(100yr) IMMOKALEE 29 Zone AH(100yr) k Zone X Shaded(600yr) N ZoneX OIL WELL r Naples 29 co 0 ill 2c' Marco Island Everglades City 0 1.5 3 6 9 12 15t Miles Figure 4-11-Collier County FIRM Flood Zones Page 73 Collier County,Florida Floodplain Management Plan 4_4,7, March 2015 amec foster wheeler Cott Count y I 6 A 1 7 Figure 4-12 reflects the mapped flood insurance zones for the City of Everglades City. The southwestern portion of the City contains a Zone VE SFHA while the remainder of the City is covered by Zone AE with a small pocket of Zone X (50.0-yr). A summary of acreage by flood zone is as follows: Zone VE (148 Acres);Zone AE(608 Acres);and Zone X 500-yr(1 Acre). I ^.l Major Roads AN` Everglades City 1`1 amec , Zone AE(100yr) foster Zone VE(Coastal 100yr) ^1l If Ply' Zone X SR-29 0 0125 0.25 0.5 0.75 1 Mies Figure 4-12-City of Everglades City FIRM Flood Zones Page 74 Collier County,Florida Floodplain Management Plan March 2015 amec 41,0 foster wheeler Cor County 6 4 1 71 7 C .........-9.......„,, Figure 4-13 reflects the mapped flood insurance zones for the City of Marco Island. The City of Marco Island is comprised primarily of Zone VE and Zone AE SFHAs with small areas of Zone X (500-yr and unshaded). A summary of acreage by flood zone is as follows: Zone VE(5,623 Acres); Zone AE(9,858 Acres); and Zone X 500-yr(51 Acres); and Zone X unshaded(236 Acres). N TTR /NV Major Roads f� Streets r, arnec wkV foster aCity of Marco Island wheeler zone A(100yr) Zone AE(100yr) Afr Zone VE(100yr) Zone AH(100yr) Zone X Shaded(500yr) Zone X s an 0 035 0.7 1.4 21 2.8 Miles Figure 4-13-City of Marco Island FIRM Flood Zones Page 75 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler Cor County l64J7 _,.....„,..„... Figure 4-14 reflects the mapped flood insurance zones for the City of Naples. The City of Naples is comprised primarily of Zone VE and Zone AE SFHAs with areas of Zone AH and small areas of Zone X (500-yr and unshaded)in the north central portion of the City. A summary of acreage by flood zone is as follows: Zone VE (2,998 Acres); Zone AE (7,198 Acres); Zone AH (450 Acres); Zone X 500-yr (597 Acres);and Zone X unshaded(772 Acres). N \\sli.r...:1111.06 w Major Roads n yStreets /Vmill amec f OStEr City ofNaples wheelerZone A(100yr) Zone AE(100yr) Zone VE(100yr) Zone AH(100yr) �' Zone X Shaded(500yr) Zone X �ti \ft... 01 i 0 05 1 2 3 4 Miles Figure 4-14-City of Naples FIRM Flood Zones The NFIP utilizes the 100-year flood as a basis for floodplain management. The FIS defines the probability of flooding as flood events of a magnitude which are expected to be equaled or exceeded once on the average during any 100 year period(recurrence intervals). Or considered another way, properties within a 100-year flood zone have a one percent probability of being equaled or exceeded during any given year. Mortgage lenders require that owners of properties with federally-backed mortgages located within SFHAs purchase and maintain flood insurance policies on their properties. Consequently, newer and recently purchased properties in the community are insured against flooding. Due to the risk of flooding from hurricanes, most property owners in the County, even if the property is not located in a SFHA,should be encouraged to purchase and maintain flood insurance policies. Page 76 Collier County,Florida Floodplain Management Plan March 2015 amec wheelerwe Co Yer Count y6A17 ......--„., Past Occurrences Collier County is located within a sub-tropical environment and is subject to intense thunderstorms and tropical cyclones (hurricanes). Roughly 80% of the 53.5" average annual rainfall occurs during the months of May through October, with approximately 65% of that occurring during the peak rainfall months of July through September. Flooding can occur in Collier County year-around but is most frequent during the summer months which often bring persistent thunderstorms, and in late summer the heavy rains associated with tropical storms and hurricanes are more prevalent. Past occurrences for tropical storms and hurricanes can be found in Section 4.2.6. II ti Pe ><r � -y somrille lillir Panama„lir; � �� , � 4 1 �� titSt.Augustine 55 - • U i � 50"- 5 i na50" Average Annual vror mil' Tvle miland1Melbournee Cleanuate • * St Petersbur • • � ! Beach Bradent•, ,n 5 t'II , . Pierce SarasoVApp lung Cape Coal oyan%on FortMye' A B_oeaRaton _nano Naple- rsT.JJ.[[�iF i r � liWit .ollynrood •r Mia j ' a �nda eac� 55"- 63 d,, rr 50"-�55 40"- 45" 45" - 50 Source: Florida Climate Center,Florida State University Figure 4-15-Average Annual Precipitation for Florida Table 4-10 shows the flood events from causes other than hurricanes or tropical storms reported by the NCDC since 1950 for Collier County. NCDC receives Storm Data from the National Weather Service. The National Weather service receives their information from a variety of sources, which include but are not limited to: county, state and federal emergency management officials,local law enforcement officials, SkyWarn spotters, NWS damage surveys, newspaper clipping services, the insurance industry and the general public, among others. The National Weather Service makes a best guess for damages using all available data at the time of the publication. Property and Crop damage should be considered as a broad estimate. Table 4-10-NCDC Flooding in Collier County—January 1950 to May 2014 Location Date Event Type Injuries/Deaths Damages Naples 09/20/1999 Flash Flood 0/0 $200,000 Immokalee 07/04/2000 Flash Flood 0/0 $0 Marco 07/23/2001 Flash Flood 0/0 $150,000 Page 77 Collier County,Florida Floodplain Management Plan March 2015s amec foster wheeler Co ler County16417 .......-„,........„.....,.............., Location Date Event Type Injuries/Deaths Damages West Portion 09/29/2003 Flash Flood 0/0 $100,000 Immokalee 08/30/2006 Flash Flood 0/0 $0 Marco 07/16/2008 Flash Flood 0/0 $10,000 Coastal Collier 12/30/1997 Flood 0/0 $0 Collier County 05/28/1998 Flood 0/0 $0 Naples 09/07/2000 Flood 0/0 $0 Naples 09/11/2000 Flood 0/0 $0 Coastal Collier 06/26/2012 Coastal Flood 0/0 $70,000 Marco 07/12/1998 Heavy Rain 0/0 $0 Marco Is Arpt 07/20/1998 Heavy Rain 0/0 $0 Naples 09/28/2001 Heavy Rain 0/0 $0 Golden Gate 06/12/2005 Heavy Rain 0/0 $0 Golden Gate 02/03/2006 Heavy Rain 0/0 $60,000 Evans Pines 04/06/2008 Heavy Rain 0/0 $0 Source: NCDC Table 4-11 shows the flood events from causes other than hurricanes or tropical storms reported by SHELDUS from 1960 through present. SHELDUSTM applies conservative estimates to losses.Whenever losses are reported as a range(e.g., $5,000 to$50,000), SHELDUSTM selects the lower bound of the range (e.g., $5,000). Losses for multi-county events are distributed equally across counties with the exception of fatalities and injuries. If details on the location of fatalities and injuries are provided in the original data, SHEDUS will reflect it. For events involving multiple hazards, losses were distributed equally across hazard types. Table 4-11-SHELDUS Flooding Events in Southern Florida- 1960 to 2014 Date Hazard Type Injuries/Fatalities Crop Damage Property Damage 05/1996 Coastal 1/1 $0 $0 09/1997 Coastal 0/2 $0 $0 06/1998 Coastal 0/1 $0 $0 08/2008 Coastal 0/0 $0 $64,919 10/1974 Flooding 0/0 $656 $65,629 06/1992 Flooding 0/0 $7,547 $754,736 09/1994 Flooding 0/0 $0 $1,455 10/1995 Flooding 0/0 $56,557,802 $76,429 09/1999 Flooding 0/0 $0 $279,660 07/2001 Flooding 0/0 $0 $197,309 09/2003 Flooding 0/0 $0 $126,607 07/2008 Flooding 0/0 $0 $10,819 06/2012 Flooding 0/0 $0 $71,025 08/2012 Flooding 0/0 $0 $6,087,885 02/1969 Severe Storm/Thunder Storm 0/0 $0 $15,632 03/1969 Severe Storm/Thunder Storm 0/0 $0 $9,309 06/1991 Severe Storm/Thunder Storm 0/0 $0 $85 07/1991 Severe Storm/Thunder Storm 4/0 $0 $17,104 07/1992 Severe Storm/Thunder Storm 0/0 $0 $83 08/1992 Severe Storm/Thunder Storm 0/0 $0 $83 02/2006 Severe Storm/Thunder Storm 0/0 $0 $69,332 Source: SHELDUS v13.1 The following provides additional details on flood events within the NCDC database and from the South Florida Water Management District. Page 78 Collier County,Florida Floodplain Management Plan March 2015 amec iii foster wheeler Col er County 1 6A17 May 28, 1998 - Street flooding and overflowing canals resulted as a line of thunderstorms dumped near three inches of rain in the morning hours. The Collier County Government Center measured 2.73 inches between 7:30 and 11:45 am. July 20, 1998—Rainfall was estimated at three inches in one half hour at Marco Island Airport. September 20, 1999- Eight inches of rain fell during the afternoon of September 20 causing major street flooding which submerged six vehicles and caused minor flooding to 34 structures in Naples. July 23,2001 - At least four residences and 20 vehicles were damaged by flood waters on Marco Island and in East Naples. 48-hour rainfall amounts of 4 to 10 inches of rain were measured over southwest Florida as a trough of low pressure stalled in the eastern Gulf of Mexico. Radar estimated 8-12 inches of rain fell over a 96-hour period in Marco Island. Strong onshore winds caused some minor tidal flooding of streets. September 28, 2001 — Between 3 and 5 inches of rain with local amounts of 8 inches caused street flooding in Naples. September 29,2003 - Very heavy rainfall fell across southwest Florida with radar estimated amounts of 8 to 10 inches. Naples measured a record 6.99 inches. The resulting flood closed numerous roads in Collier County. Numerous cars were stalled. Houses and businesses including a shopping mall suffered minor flooding damage. July 16, 2008 - A combination of 6-8 inches of rain over a short period of time and high tide caused flooding on Marco Island. Coconuts, palm fronds, and plastic bags also clogged storm drains at some locations exacerbating the flooding. One towing company on Marco Island pulled out 35 to 40 cars alone. Water reached around 2 feet deep in some roadways and a few inches deep in some residences. Several roads were closed,including the main bridge connecting Marco Island to the mainland. June 26, 2012 — Persistent and strong southerly winds pushed water onshore over southern Collier County in the Everglades City area. Minor flooding occurred over several consecutive high tide cycles beginning on June 23rd, with the highest water levels occurring during the high tide cycle of the morning of June 26th. Streets in Everglades City were flooded,damaging roads and water pumps. September 6-8, 2013 (Record rainfall in Naples was 6 September) - Thunderstorms with torrential rainfall develop just inland of the Collier County coast during the late afternoon and early evening hours of Friday, Sept. 6th and moved west across northern portions of the Naples metro area. The communities of Golden Gate, Golden Gate Estates and North Naples were particularly affected, with North Naples being hardest hit. The atmosphere was quite unstable during the day of the 6th, but thunderstorm activity was delayed by the presence of slightly drier air aloft. However, by early evening a southward-moving gust front from earlier storms in North Florida made it to the Collier County region and interacted with the Gulf sea breeze which was located over the interior sections of the area. This convergence of the two air masses led to rapid development of the thunderstorms with torrential rainfall and near-continuous lightning. Isolated storms initially formed in the Golden Gate area between 630 and 7 PM, with a large cluster of storms organizing over the Everglades between 7 and 730 PM. Two thunderstorm cells developed in the North Naples area around 745 PM,with the main area of storms still to the east over the Everglades. Between 815 and 830 PM, the large area of storms over the Everglades converged with the cells over North Naples and 845 PM the entire area of storms expanded and intensified to cover the entire area from Vanderbilt Beach across to Golden Gate Estates, with a second area of intense storms in the East Naples area. The cluster of storms in the northern part of the county remained nearly stationary through 930 PM as it dumped excessive amounts of rainfall. It is during the time between 830 PM and 10 PM when the highest rainfall rates took place. Rains began to taper off after 10 PM but remained in the light to moderate range until shortly after midnight. Rainfall amounts in the North Naples/Naples Park/Palm River area ending at 8 AM on Saturday the 7th were between 5-10 inches, with a highest Page 79 Collier County,Florida Floodplain Management Plan March 2015 i amec foster wheeler Co Ter County 1 6 A 1 7 measured value of 9.45 inches near the intersection of Logan Blvd North and Immokalee Road(near Gulf Coast High School). Farther south, rainfall amounts in the 3-5 inch range were measured in the city of Naples, Golden Gate, Golden Gate Estates and East Naples areas. Extensive flooding was reported in the North Naples area with many streets closed due to high water. Damages and impacts: Two house fires from lightning, three water main breaks, one tree down across a roadway, and dozens of flooded roadways with people stranded in stalled cars. August 4, 2014 (Record rainfall again set for Naples) - A band of thunderstorms with very heavy rain set up from the Gulf of Mexico across western Collier County in association with a low pressure area over North Florida. The band moved little between 12:30 PM and 3:00 PM as the individual storms moved east over the City of Naples. This "training-effect"of the heavy rain cells led to copious rain amounts and severe street flooding in parts of Naples and Golden Gate. Automobiles experienced the greatest amount of the damages. A couple of businesses experienced minor water intrusion. The flooding threat left the area about 7:30 pm Monday night. Highest Measured Rainfall Amounts(source): "Naples Beach Hotel and Club: (CoCoRaHS):7.00" •Naples Municipal Airport(NWS): 6.73" * •Gulfview Middle School(AWS): 6.25" 'Golden Gate(CoCoRaHS): 5.89" (* Sets new daily record for August 4th as well as for any day in August.) 'Measured rainfall of 4 inches in one hour(between 1 and 2 PM) is in excess of a 50-year rainfall for Naples. Frequency/Likelihood of Future Occurrence Occasional - By definition of the 1-percent-annual-chance flood event, Collier County has a 1 percent chance of a 100-year or significant flood being equaled or exceeded in any given year. Climate Change and Flood: 100-/500-year With its populous coastal community and low topography,Collier County is particularly vulnerable to the effects of climate change and sea level rise. According to a 2009 report by the SFWMD titled Climate Change and Water Management in South Florida, average annual rainfall may increase or decrease slightly in the future but more frequent intense rainfall events are likely to occur with longer dry periods in between. Heavy rainfall poses a threat to homes, businesses, and water control structures. If flooding were to reach new extremes, the water management system already in place may not be adequate to provide the necessary levels of flood protection according to the 2009 SFWMD report. Flooding could also further degrade water quality due to increased runoff, the loss of positive pressure in sewer systems, damage to septic systems, and pollutants washed into water bodies. 4.2.5 Flood: Stormwater/Localized Flooding Hazard/Problem Description Localized stormwater flooding occurs when heavy rainfall and an accumulation of runoff overburden the stormwater drainage system within the community. Collier County has a natural terrain that is extremely flat. From a high point near Immokalee the drainage pattern is south and southwesterly toward the coast with an average slope of one foot per mile. Page 80 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler tat- Co ger County fl A Primary and a Secondary canal system form the major surface water/stormwater drainage network in the County. The Secondary system consists of a network of ditches, canals, weirs and pump stations that collect and convey stormwater run-off from neighborhoods and public roadside drainage systems. It is linked to, and operates in close cooperation with the Primary system. The Primary system consists of canals and water level control structures that collect and convey stormwater run-off from the Secondary system,roadways and neighborhoods. The major canals within Collier County are shown in Figure 4-16. I. - /\/Major Roads amec '• Immokalee Indian Reservation foster Municipalities nicipalities °;:" 1 it tmllokalee Unincorporated Area lit,',2,'t —1Canals in Collier County IIAdOKALEE L== K Water Bodes A ' ..._, --V .z- OIL WEU. COC HATCHEE1CANALY .,.0 .,i O .� O O 2 ,1A 3 �a c a; vy�Fq� i, rc atea s. ? ��pp �� € Y f. m u�.' 1-75 CANAL Naples _Y�.— 1 t if, .� Q, a _._ ,. 1y = z = CWQ . frl PRAIRIE y . ;_,.CANAL N - 41 /@g Marco Island � ' • i y .., t.-yr, t` TAMIAMP CANAL 41 Everglades . City ,..4t7„, ' 0 2.5 5 10 15 20 n1"� ,r 14Kci NOBS Figure 4-16—Major Canals in Collier County Past Occurrences Figure 4-17 depicts a locator map for the areas of localized flooding within the unincorporated areas of Collier County identified by the FMPC. Figures 4-18 through 4-24 provide a more detailed view of each area. The areas of localized flooding within Unincorporated Collier County are listed below in Table 4- 12. Table 4-12-Collier County Localized Flooding Areas Neighborhood Area Road Name North of Immokalee Rd&West of Livingston Rd 428 10TH AVE SE 191 CYPRESS WAY E 489 JOHNNYCAKE DR Page 81 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler Cor County 1 Neighborhood Area Road Name 749 MENTOR DR 485 OAKWOOD DR 484 PALM VIEW DR 345 PIPER BLVD 41 RAVEN WAY 24 SHARWOOD DR 690 WIGGINS PASS RD 659 WILLOUGHBY DR 1007 WILLOUGHBY DR Naples Park 219 100THAVEN 165 111TH AVE N Pine Ridge Estates Area 558 CAJEPUT DR 61 CARIBBEAN RD 210 CARICA RD 423 CASSENA RD 427 EAST AVE 420 EUGENIA DR 426 GOODLETTE-FRANK RD N 436 GORDONIA RD 365 MAHOGANY DR 347 MYRTLE RD 954 ORANGE BLOSSOM DR 60 RIDGE DR 459 WEST PL S of Vanderbilt Beach Road,E of Goodlette Frank Rd,N of Pine Ridge Rd,W of Livingston Rd 58 AIRPORT PULLING RD N 449 ARBOUR WALK CIR 571 CORPORATION BLVD 341 HOUCHIN ST 194 J AND C BLVD 512 JANES LN 572 LEE ANN LN 238 ORANGE BLOSSOM DR 1016 SEWARD AVE 513 SHIRLEY ST 464 TAYLOR RD 463 TRADE CENTER WAY 1055 VANDERBILT BEACH RD 705 WASHINGTON ST 648 YAHL ST S of Pine Ridge,W of Goodlette Frank Rd 13 10TH STN 18 12TH ST N 805 13TH ST N 17 14TH STN 636 COOPER DR Page 82 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler Co ler County 1 6 A 1, 7 Neighborhood Area Road Name 376 FRANK WHITEMAN BLVD 148 GOLDEN GATE PKWY 849 GRANADA BLVD 872 HOLLYGATE LN 98 ILLINOIS DR 708 OHIO DR 240 RIDGE ST 719 ROYAL PALM DR 895 SOLANA RD _ 714 WISCONSIN DR S of Pine Ridge Rd-Forest Lakes Area 72 BURNING TREE DR 863 CYPRESS POINT DR 11 FOREST LAKES BLVD 77 FOREST LAKES DR 231 MEL JEN DR 189 QUAIL FOREST BLVD 895 SOLANA RD 271 TURTLE LAKE CT 9 WOODSHIRE LN W of Airport Pulling Rd-Poinciana Village Area 768 BALBOA CIR E 769 BALBOA CIR W 952 BOLERO WAY 1063 BUENA VISTA LN 242 COACH HOUSE LN 633 COCO LAKES CT 631 COCO LAKES DR 632 COCO LAKES PL 617 CORANA WAY 634 COTTAGE CLUB LN 928 DORADO WAY 925 MALAGA WAY 92 POINCIANA DR 94 POINCIANA ST 930 PONCE DE LEON DR 707 SACRAMENTO WAY 716 SANTIAGO WAY 765 TOLEDO WAY 619 TORTUGA WAY S of Golden Gate Pkwy,N of Davis Blvd,E of Goodlette Frank Rd,W of Livingston Rd-Airport Area 112 ` 14TH ST N 28 AIRPORT PULLING RD N 835 AIRPORT PULLING RD S 32 ARNOLD AVE 323 BLUEBIRD ST 1019 BLUEBIRD ST 133 CARDINAL ST Page 83 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler Cor County1 6 A 7 Neighborhood Area Road Name 962 CENTRAL DR 851 CLIPPER WAY 123 COCONUT CIR E 354 COCONUT CIR N 134 COCONUT CIR S 1011 COCONUT CIR W 201 COMMERCIAL BLVD 733 CORPORATE SQ 844 CROTON RD 721 DOMESTIC AVE 724 DOMESTIC AVE 726 DOMESTIC AVE 589 DONNA ST 834 DONNA ST 223 E HORSESHOE DR 262 ENTERPRISE AVE 499 ENTERPRISE AVE 502 ENTERPRISE AVE 1090 ENTERPRISE AVE 35 ESTEY AVE 588 ESTHER ST 202 EXCHANGE AVE 325 FLAMINGO DR 321 FOXFIRE LN 830 GAIL BLVD 327 GUAVA DR 320 HAZEL RD 129 HIBISCUS ST 1017 HIBISCUS ST 916 HIDDEN TERRACE RD 50 INDUSTRIAL BLVD 29 LONGBOAT DR 852 LONGBOAT DR 911 LOTUS DR 853 MERCANTILE AVE 226 N HORSESHOE DR 1091 NORTH RD 860 OUTRIGGER LN 132 PARROT AVE 121 POINSETTIA AVE 117 PORT AVE 722 POWER ST 518 PROSPECT AVE 505 RADIO RD 284 RIVER REACH DR 476 ROBIN AVE 478 ROBIN AVE 1036 ROSE WAY Page 84 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler fk Co ler County 1 6 A17 Neighborhood Area Road Name 914 ROSEA CT 915 ROSEATE DR 222 S HORSESHOE DR 34 SAN REMO AVE 626 SHADOWLAWN DR 1093 UNNAMED RD Gateway Triangle Area-N of Tamiami Trl,W of Airport Pulling,S of Davis Blvd 991 AVONDALE ST 528 COMMERCIAL DR 369 DAVIS BLVD 814 KIRKWOOD AVE 523 LINWOOD AVE 1069 LINWOOD WAY 933 SHADOWLAWN DR Bayshore Area-S and W side of Tamiami Trl 759 ANDREWS AVE 177 MOORHEAD MNR 602 PALMETTO CT 1077 THOMASSON LN 175 VAN BUREN AVE 761 WOODSIDE AVE S of Davis Blvd,E of Airport pulling,N of Tamiami Trail,W of Collier Blvd. 156 DUCHESS DR 948 FOREST HILLS BLVD 982 HAWAII BLVD 728 COLLIER BLVD 727 KIM DR 937 ALLEY 581 CORONADO PKWY 104 HUNTER BLVD 808 SUNSHINE BLVD S of Immokalee Rd,E of Livingston,N of Green Blvd,W of Collier Blvd 1084 CORAL WOOD DR 103 CORONADO PKWY 816 DOGWOOD WAY 102 GOLDEN GATE PKWY 371 GREEN BLVD 1061 HAWTHORN WOODS WAY 104 HUNTER BLVD 1083 TEAK WOOD DR 209 VANDERBILT BEACH RD 600 VINEYARDS BLVD 234 WHIPPOORWILL LN North Golden Gate Estates Area-E of Collier Blvd 182 106TH AVE SE 68 10TH AVE SE 679 110TH AVE SE r 232 12TH AVE SE Page 85 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler 16A17 7 Copier County Neighborhood Area Road Name 276 14TH AVE SE 552 16TH AVE SE 891 18TH AVE SE 372 20TH AVE SE 746 22ND AVE NE 908 22ND AVE SE 961 24TH AVE SE 1089 25TH AVE NE 25 26TH AVE SE 541 27TH AVE NE 181 28TH ST SE 639 29TH AVE NE 458 2ND AVE SE 250 30TH AVE SE 778 31ST AVE NE 149 32ND AVE SE 334 33RD AVE NE 624 34TH AVE SE 6 35TH AVE NE 298 36TH AVE SE 430 37TH AVE NE 264 38TH AVE SE 421 39TH AVE NE 393 40TH AVE SE 266 42ND AVE SE 591 45TH AVE NE 498 48TH AVE NE 750 4TH AVE SE 931 52ND AVE SE 969 54TH AVE SE 687 56TH AVE NE 610 62ND AVE NE 606 66TH AVE NE 885 68TH AVE NE 1022 6TH AVE SE 16 70TH AVE NE 884 8TH AVE SE 1002 95TH AVE SE 4 DESOTO BLVD N 551 DESOTO BLVD S 0 EVERGLADES BLVD N 1073 EVERGLADES BLVD S 575 GOLDEN GATE BLVD E 390 GOLDEN GATE BLVD W 871 JANES SCENIC DR 42 JUNG BLVD E 1087 JUNG BLVD E 424 RANDALL BLVD Page 86 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler Collier County 1 6 A 7 Neighborhood Area Road Name 782 WILSON BLVD N S of intersection Tamiami Trl and Collier Blvd 184 AUTO RANCH RD 1092 SANDPIPER DR 641 SHELL ISLAND RD Page 87 Collier County,Florida Floodplain Management Plan March 2015 a amec foster wheeler 16A17 x r" al.., vcuT 03 L z-.<1 F. a _ (5, E a R R r l ee 4 4 2 2 i .i 4 2 i u Ilii 1 000000111E111 1 11 ■ , ■ t. o =...ri,... ,,,..„ ...... ,.... 7::: a. -:11117Vil milm L c.) wort IAN] maw wrimi ,i„,.. . i ■ To r=1 • 4 ��,r •...... , ...... �y._ �f ,3 _ $4! r t1*1 ttitrr11ii,��\l\u 1 'a• Q�ti.w � Jamir 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It , ,-- , = anis II :gm ,. it 73, .... % a ....----cti--1 40 P^I8!!enneH AP ' ' t 0 . 4 • 71 O U 1 <�fN C M ' 1--1-1J) ( sio '", ...„..,...,...... ?... : ,cce m ]UUMIMOPBO CO ' 0 2 4 N I p COeL - 4 0.1 "ES CI �y `i e a Ln O 0 1-1 U •0N aV v Ci o 6. a r... O 0 Cor County1 6 y ..........%„,„,... Figure 4-25 depicts the areas of localized flooding within the City of Marco Island identified by the FMPC. The areas of localized flooding with the City of Marco Island include: • S Collier Blvd. &Swallow Ave • Bermuda Rd., Tahiti Rd., Bayport Ave., Freeport Ave. • S Collier Blvd. &Winterberry Dr. &Kirkwood St. • S Collier Blvd. &San Marco Rd. • Lilac Ave. &Apple Ct. • S Barfield Dr. &Ludlow Rd. • Buttonwood Ct. • S Covewood St. &Dogwood Dr. • Fairlawn Ct. • Waterfall Ct. • Ruppert Rd. • Clyburn St. • Bald Eagle Dr. &Palm St �, ,, Flooding Hot Spots 4,44, , City of Marco Island ,t :; �.,� ��ttl,ZTa '- A- 3.; Flooding Locations r `,0 {larger dots denote broader areas of flooding) • Nt44614 �'. �N'�L2"° t '.v + ,^ice .fes s� o '',r- ;tit py � � r _ +ir yk 4 i�ry i----;,..--'V , 24,;...., _.:_.„ ., ,,,, ,,.7.,,,, . „,,, ,_ _ „ ., ... c;,4 !. -iik.....- - °qt., . _ 41, NIP ' -.., 40.,..„„L, . \ „ , ,,. _,--\‘___,,s - t.1,,,,,e. __-. ;, ,....t..e.,,,,-- ..\zt ' \ 1 - —: —1 -Trs ra- t-4..\-;i-- y, , y� r }q.H r'sa 1 1 f±;* d '1116 , it J s� 7! � ,% ` � N. �� 4:Nit *gip, „jail 1 inch=4,400 feet 0 1,35C2,700 5,400 8,100 10,800 Feet Figure 4-25-Localized Flooding for City of Marco Island Page 96 Collier County,Florida Floodplain Management Plan f March 2015 amec 14 - foster wheeler Co rer Count 16A17 Figure 4-26, on the following page, depicts the areas of localized flooding within the City of Naples identified by the FMPC. The areas of localized flooding within the City of Naples include: • GCB at Central Ave • GSB from 5th Ave South to 9th Ave South • GSB from 12th Ave South to 17th Ave South • GSB from 2nd Ave North to 4th Ave North • GSB at Banyan Blvd • Central Ave from 8th Street to Goodlette Frank Road • 3rd Street North from 1st Ave North to 3 Ave North • 6th Street North from 1st Ave North to 3rd Ave North • Riviera Drive at Crayton Road • Riviera Drive at Binnacle Drive • Gordon Drive from 18th Ave South to 21st Ave South • 10th Street North from 7th Ave North to 12th Ave North For all communities,localized flooding may be caused by the following maintenance related issues: Clogged Inlets — debris covering the catch basin inlets may contribute to an inadequate flow of stormwater into the system which may cause flooding near the structure. Debris and sediment accumulations within the catch basins and stormwater pipes may also reduce the efficiency of the system by reducing the carrying capacity. Blocked Drainage Outfalls—debris blockage including sediment and vegetation or structural damage at drainage outfalls may prevent the system from discharging runoff which may lead to a back-up of stormwater within the system. Improper Grade — poor grading around catch basin inlets may prevent stormwater from entering the catch basin as designed. Frequency/Likelihood of Future Occurrence Highly Likely - Due to the low elevations, a flat terrain, a consistent level of seasonally concentrated annual precipitation and the tidal influence on canal drainage resulting from heavy rainstorms, tropical storms, and hurricanes,it is highly likely that unmitigated properties will continue to experience localized flooding. Climate Change and Flood: Stormwater/Localized Flooding Climate change and sea level rise do have the potential to affect localized flooding in Collier County. The intensity of individual rainfall events is likely to increase which can overwhelm stormwater drainage systems. It is possible that average soil moisture and runoff could decline, however, due to increasing temperature,evapotranspiration rates and spacing between rainfall events. Page 97 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler ler Ci01��County. r6A17IL. 1 - _____I i..) . .. ... 1 .._ ..........,. , . r., „„,.. 1 1 I Sources Esn,DeLro`tlhe, NAVTEO,Tomm,ToIntermep, —� 0OP Corp..6EBCN,,. USGS.FAO.UPS,NRCAN,"^ IIIIMI ep0aso,Base,IGN,Kades[er NL, Storm Water Flooding _ Hot Spots For The �� City of Naples,Florida I Date tvvzom [---- , \ . , -1, . , Legend Flooding Areas (City Limits L FEMA Flood Zones Flood Zone X500 A __. AE AH VE X 1 F \ — a s t eat.}' il r—r 41 L . ,, °..%\11 N ON r----1 s 1 inch=1,500 feet 0 0.25 0.5 Mlles \ 1 I I Technology Sem i'--- ,, GIS Department 295 Riversde Circle l Naples Florida 34102 \.__y Sources'Esn,.DeLorme,NAVTEO,TomTan'.Interrnap,Inc P Corp., GEBCS.USGS,FAQ.NPS,NECAN,GeoBase,1GN,Kadester L. Ordnance Survey.Esn Japan.METI,Esn Chine(Hong Kong), Isstopo, endthe GIS User Comrnuney s Figure 4-26—Localized Flooding for City of Naples ..__�...��,_....vr_.-._.mw.d_—.. Page 98 Collier County,Florida Floodplain Management Plan March 2015 arnec foster wheeler Co rer Count 16A17 4.2.6 Hurricane and Tropical Storm (including Storm Surge) Hazard/Problem Description A hurricane is a type of tropical cyclone or severe tropical storm that forms in the southern Atlantic Ocean, Caribbean Sea, Gulf of Mexico, and in the eastern Pacific Ocean. All Atlantic and Gulf of Mexico coastal areas are subject to hurricanes. The Atlantic hurricane season lasts from June to November, with the peak season from mid-August to late October. While hurricanes pose the greatest threat to life and property, tropical storms and depressions also can be devastating. A tropical disturbance can grow to a more intense stage through an increase in sustained wind speeds. The progression of a tropical disturbance is described below. • Tropical Depression: A tropical cyclone with maximum sustained winds of 38 mph (33 knots) or less. • Tropical Storm: A tropical cyclone with maximum sustained winds of 39 to 73 mph (34 to 63 knots). • Hurricane: A tropical cyclone with maximum sustained winds of 74 mph (64 knots) or higher. In the western North Pacific, hurricanes are called typhoons; similar storms in the Indian Ocean and South Pacific Ocean are called cyclones. • Major Hurricane: A tropical cyclone with maximum sustained winds of 111 mph (96 knots)or higher,corresponding to a Category 3,4 or 5 on the Saffir-Simpson Hurricane Wind Scale. The Saffir-Simpson Hurricane Wind Scale classifies hurricanes by intensity into one of five categories as shown in Table 4-13. This scale estimates potential property damage. Hurricanes reaching Category 3 and higher are considered major hurricanes because of their potential for significant loss of life and damage. Category 1 and 2 storms are still dangerous,however,and require preventative measures. Table 4-13—Saffir-Simpson Hurricane Wind Scale,2012 Category Wind Speed(mph) Potential Damage Very dangerous winds will produce some damage: Well-constructed frame homes could have damage to roof, shingles, vinyl siding and gutters. Large branches of trees 1 74-95 will snap and shallowly rooted trees may be toppled. Extensive damage to power lines and poles likely will result in power outages that could last a few to several days. Extremely dangerous winds will cause extensive damage: Well-constructed frame homes could sustain 2 96-110 major roof and siding damage. Many shallowly rooted trees will be snapped or uprooted and block numerous roads. Near-total power loss is expected with outages that could last from several days to weeks. Devastating damage will occur: Well-built framed homes may incur major damage or removal of roof 3 111-129 decking and gable ends. Many trees will be snapped or uprooted, blocking numerous roads. Electricity and water will be unavailable for several days to weeks after the storm passes. Catastrophic damage will occur: Well-built framed 4 130-156 homes can sustain severe damage with loss of most of the roof structure and/or some exterior walls. Most trees will Page 99 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler Cor Count1 16 A 1 7 .......„.„.......„ 11County Category Wind Speed(mph) Potential Damage be snapped or uprooted and power poles downed. Fallen trees and power poles will isolate residential areas. Power outages will last weeks to possibly months. Most of the area will be uninhabitable for weeks or months. Catastrophic damage will occur: A high percentage of framed homes will be destroyed,with total roof failure and 5 >157 wall collapse. Fallen trees and power poles will isolate residential areas. Power outages will last for weeks to possibly months.Most of the area will be uninhabitable for weeks or months. Source: National Hurricane Center/NOAA Storm Surge The greatest potential for loss of life related to a hurricane is from the storm surge. Storm surge is simply water that is pushed toward the shore by the force of the winds swirling around the storm as shown in Figure 4-27. This advancing surge combines with the normal tides to create the hurricane storm tide, which can increase the mean water level to heights impacting roads, homes and other critical infrastructure. In addition, wind driven waves are superimposed on the storm tide.This rise in water level can cause severe flooding in coastal areas, particularly when the storm tide coincides with the normal high tides. The maximum potential storm surge for a particular location depends on a number of different factors. Storm surge is a very complex phenomenon because it is sensitive to the slightest changes in storm intensity, forward speed, size (radius of maximum winds-RMW), angle of approach to the coast, central pressure (minimal contribution in comparison to the wind), and the shape and characteristics of coastal features such as bays and estuaries. Other factors which can impact storm surge are the width and slope of the continental shelf.A shallow slope will potentially produce a greater storm surge than a steep shelf. Wind and Pressure Components of Hurricane Storm Surge d FIs'. ISP Water on ocean-side flows away without raising sea level much i, `Ma`s Source: NOAA/The COMET Program Figure 4-27-Components of Hurricane Storm Surge Page 100 Collier County,Florida Floodplain Management Plan March 2015 le amec foster wheeler 9& unty 17 Storm Surge Mapping The Sea, Lake and Overland Surges from Hurricanes (SLOSH)model is a computerized numerical model developed by the National Weather Service (NWS) to estimate storm surge heights resulting from historical, hypothetical, or predicted hurricanes by taking into account the atmospheric pressure, size, forward speed, and track data.These parameters are used to create a model of the wind field which drives the storm surge. The SLOSH model consists of a set of physics equations which are applied to a specific locale's shoreline, incorporating the unique bay and river configurations, water depths, bridges, roads, levees and other physical features. Anticipated SLOSH model surge elevations for a tropical storm and category 1-5 hurricanes are shown for Collier County in Figure 4-28. The feature set depicting surge zones in this figure was created using a Surge Modeling application created for the Florida Statewide Regional Evacuation Update Study. The data was derived from National Hurricane Center SLOSH model runs on all the NOAA SLOSH basins throughout Florida. The runs create outputs for all different storm simulations from all points of the compass. Each direction has a MEOW (maximum envelope of water) for each category of storm (1-5), and all directions combined result in a MOMs(maximum of maximums)set of data. The MOMs are used in this surge model. /v Major Roads .� Munclpalmes amec 1 j !awokeiee Inman Reservaeun fosterAreae ill Immokalee Counties K Tropie&Storm Surge Zone K Category'Surge Zone .IPAMOKALEE \9 114 category 2 serge zone `d�a'tee,. `.� sr,!!' \\� Category 9 51rge Zone ,.° K Category 4 Surge Zone N '" Category 5 Surge Zone A } ' L WELL _,.. ,,.e I: - ' .... Naples - x k zi a y w 41 Marco 871( +"' Everglades lai City 0 15 3 6 9 12 15 Miles Source: Florida Division of Emergency Management(http://www.floridadisaster.org) Figure 4-28—Storm Surge Zones for Collier County Page 101 Collier County,Florida Floodplain Management Plan March 2015 amec 1117 foster wheeler CCount y o ►er 16A17 Past Occurrences According to the 2012 Collier County Comprehensive Emergency Management Plan (CEMP), hurricanes/tropical storms provide the greatest flood threats to Collier County. A listing of all hurricanes/tropical storms that came within 75 nautical miles of Naples since 1851 is provided in Table 4- 14. The coastal area of Collier County has been exposed to 81 hurricanes/tropical storms since 1851. (Source: http://csc.noaa.gov/hurricanes). Type and frequency are as follows: Tropical Storm 26 (1 in 6.2 years) CAT I Hurricane 18 (1 in 8.9 years) CAT II Hurricane 9 (1 in 17.8 years) CAT III Hurricane 13 (1 in 12.3 years) CAT IV Hurricane 5 (1 in 32 years) CAT V Hurricane 10 (1 in 16 years) TOTAL 81 (1 in 1.98 years) Table 4-14-Collier County Historical Hurricane Tracks Storm Name Max Saffir-Simpson Date Not named 1859 TS Oct. 16, 1859 to Oct. 18, 1859 Not named 1861 H1 Nov. 1, 1861 to Nov.3, 1861 Not named 1865 H2 Oct. 18, 1865 to Oct.25, 1865 Not named 1870 H2 Oct. 19, 1870 to Oct.22, 1870 Not named 1873 H3 Sep.26, 1873 to Oct. 10, 1873 Not named 1876 H3 Oct. 12, 1876 to Oct.23, 1876 Not named 1878 TS Jul. 1, 1878 to Jul.3, 1878 Not named 1878 H2 Sep. 1, 1878 to Sep. 13, 1878 Not named 1888 H3 Aug. 14, 1888 to Aug.24, 1888 Not named 1888 TS Sep.6, 1888 to Sep. 13, 1888 Not named 1889 TS Oct.5, 1889 to Oct. 11, 1889 Not named 1891 H3 Aug. 18, 1891 to Aug.25, 1891 Not named 1891 TS Oct.4, 1891 to Oct. 10, 1891 Not named 1891 ET Oct.7, 1891 to Oct. 16, 1891 Not named 1892 TS Jun.9, 1892 to Jun. 16, 1892 Not named 1894 H3 Sep. 18, 1894 to Oct. 1, 1894 Not named 1895 TS Oct. 13, 1895 to Oct. 17, 1895 Not named 1896 H2 Oct.7, 1896 to Oct. 16, 1896 Not named 1897 TS Sep.20, 1897 to Sep.25, 1897 Not named 1899 H2 Jul.28, 1899 to Aug.2, 1899 Not named 1901 H1 Aug.2, 1901 to Aug. 18, 1901 Not named 1903 H1 Sep.9, 1903 to Sep. 16, 1903 Not named 1904 H1 Oct. 12, 1904 to Oct.21, 1904 Not named 1906 H2 Jun. 14, 1906 to Jun.23, 1906 Not named 1906 H3 Oct. 8, 1906 to Oct.23, 1906 Not named 1907 TS Sep. 18, 1907 to Sep.23, 1907 Not named 1909 TS Jun.26, 1909 to Jul.4, 1909 Not named 1909 TS Aug.28, 1909 to Aug.31, 1909 Page 102 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler Cor County 1 6 A 1 7 _....„.....„,, Storm Name Max Saffir-Simpson Date Not named 1909 TS Sep.24, 1909 to Sep.29, 1909 Not named 1910 H4 Oct.9, 1910 to Oct.23, 1910 Not named 1911 H1 Aug.8, 1911 to Aug. 14, 1911 Not named 1916 ET May. 13, 1916 to May. 18, 1916 Not named 1916 H2 Aug.21, 1916 to Aug.26, 1916 Not named 1916 TS Nov. 11, 1916 to Nov. 16, 1916 Not named 1921 ET Oct. 15, 1921 to Oct.24, 1921 Not named 1924 H5 Oct. 14, 1924 to Oct.23, 1924 Not named 1925 ET Nov.27, 1925 to Dec.5, 1925 Not named 1926 H4 Sep. 11, 1926 to Sep.22, 1926 Not named 1928 H1 Aug.7, 1928 to Aug. 17, 1928 Not named 1929 H4 Sep.22, 1929 to Oct.4, 1929 Not named 1932 H1 Aug.26, 1932 to Sep.4, 1932 Not named 1934 TS May.27, 1934 to May.31, 1934 Not named 1935 H5 Aug.29, 1935 to Sep. 10, 1935 Not named 1935 HI Oct.30, 1935 to Nov.8, 1935 Not named 1936 TS Jun. 12, 1936 to Jun. 17, 1936 Not named 1936 H1 Jul.27, 1936 to Aug. 1, 1936 • Not named 1941 H3 Oct.3, 1941 to Oct. 14, 1941 Not named 1944 H3 Oct. 12, 1944 to Oct.23, 1944 Not named 1945 TS Sep.3, 1945 to Sep.6, 1945 Not named 1945 H4 Sep. 12, 1945 to Sep.20, 1945 Not named 1947 H5 Sep.4, 1947 to Sep.21, 1947 Not named 1947 H1 Oct.9, 1947 to Oct. 16, 1947 Not named 1948 H3 Sep. 18, 1948 to Sep.25, 1948 King 1950 H3 Oct. 13, 1950 to Oct. 19, 1950 How 1951 H2 Sep.28, 1951 to Oct.8, 1951 Not named 1952 ET Feb.2, 1952 to Feb.5, 1952 Not named 1953 TS Aug.28, 1953 to Sep.3, 1953 Hazel 1953 TS Oct.7, 1953 to Oct. 12, 1953 Judith 1959 H1 Oct. 17, 1959 to Oct.21, 1959 Donna 1960 H5 Aug.29, 1960 to Sep. 14, 1960 Florence 1960 TS Sep. 17, 1960 to Sep.27, 1960 Isbell 1964 H3 Oct.8, 1964 to Oct. 17, 1964 Betsy 1965 H5 Aug.27, 1965 to Sep. 13, 1965 Alma 1966 H3 Jun.4, 1966 to Jun. 14, 1966 Abby 1968 H1 Jun. 1, 1968 to Jun. 13, 1968 Brenda 1968 H1 Jun. 17, 1968 to Jun.26, 1968 Unnamed 1968 TD Sep.25, 1968 to Sep.29, 1968 Gerda 1969 H3 Sep.6, 1969 to Sep. 10, 1969 Jenny 1969 TS Oct. 1, 1969 to Oct.6, 1969 Unnamed 1971 TD Aug. 12, 1971 to Aug. 16, 1971 Unnamed 1971 TD Aug.28, 1971 to Sep. 1, 1971 Dawn 1972 H1 Sep.5, 1972 to Sep. 14, 1972 Unnamed 1976 TD Jun. 11, 1976 to Jun. 12, 1976 Page 103 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler %� 16 ,417 Col ier count County Storm Name Max Saffir-Simpson Date Dottie 1976 TS Aug. 18, 1976 to Aug.21, 1976 Dennis 1981 Hl Aug.7, 1981 to Aug.22, 1981 Bob 1985 H1 Jul.21, 1985 to Jul.26, 1985 Marco 1990 TS Oct.9, 1990 to Oct. 13, 1990 Ana 1991 TS Jun.29, 1991 to Jul.5, 1991 Andrew 1992 H5 Aug. 16, 1992 to Aug.28, 1992 Gordon 1994 H1 Nov.8, 1994 to Nov.21, 1994 Mitch 1998 H5 Oct.22, 1998 to Nov.9, 1998 Harvey 1999 TS Sep. 19, 1999 to Sep.22, 1999 Irene 1999 H2 Oct. 12, 1999 to Oct. 19, 1999 Charley 2004 H4 Aug.9,2004 to Aug. 15,2004 Ivan 2004 H5 Sep.2,2004 to Sep.24,2004 Katrina 2005 H5 Aug.23,2005 to Aug. 31,2005 Wilma 2005 H5 Oct. 15,2005 to Oct.26,2005 Ernesto 2006 H1 Aug.24,2006 to Sep.4,2006 Fay 2008 TS Aug. 15,2008 to Aug.28,2008 Source: NOAA,Collier County 2012 CEMP The following is a description of past occurrences of hurricanes and tropical storms as provided by the 2012 Collier County CEMP: Hurricane Donna(Cat 3)- 1960- was the last hurricane to affect Collier County to any great degree. It was a paralleling storm that hugged the coast from Everglades City to Bonita Shores. At the time of the hurricane, the County's population was approximately 15,600 including Everglades City and Naples. Storm surge with Donna occurred inland to the intersection of 6th Avenue South and 9th Street in the City of Naples. Hurricane Isbell (Cat 2) - 1964 - entered the S.W. Florida coast just north of Cape Sable. There was little,if any,flooding associated with this storm over the populated area of the County. Hurricane Alma (Cat 2) - 1966 - remained off the west coast of Florida until it made landfall south of Tallahassee. Its closest point of approach was 49 miles WSW of Naples. There are no reports of significant damage to Collier County. Tropical Storm Abby - 1968 - was a paralleling storm off the Collier County coast. It had maximum winds of 57 knots and made landfall near Charlotte Harbor. No reports of significant flood damage to Collier County. Tropical Storm Jenny-1969-had a similar track to Abby. It had maximum winds of 37 knots and made landfall near Sanibel Island. No reports of significant flood damage to Collier County. "No-Name"(Subtropical Storm) - 1974-the development of this subtropical storm followed by several days the development of a tropical storm near Vera Cruz, Mexico. As the tropical depression weakened, a new center formed in the eastern Gulf of Mexico and moved rapidly northeastward to the Tampa Bay area. Sustained winds of 30-40 knots with gusts to 55 knots were reported in the Naples area. Tides of 2-4 feet above normal occurred from Everglades City to Tampa Bay. Total rainfall ranged from 20 inches near Tampa to 10 inches elsewhere. There were three drownings in Florida and damage was estimated at $10,000,000 in western Florida. Tropical Storm Dennis - 1981 - made landfall near Cape Sable and exited the peninsula near Daytona Beach. No flood damage to Collier County. Maximum winds 35 knots. Page 104 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler Cift4'r County 1 A 1 7 Hurricane Alberto (Cat 1) - 1982 - was a near miss for Collier County. It formed off the Yucatan Peninsula and began moving NE toward Collier County before turning west and dissipating. Only minor damage reported in Collier County. No-Name Storm (Subtropical storm) - 1982 - developed in the Central Gulf of Mexico and passed substantially to our north making landfall near Cedar Key. There was a considerable amount of beach erosion along the coast from the Lee County line to Marco Island. There were no residential structures destroyed or substantially damaged. Several bulkheads and rock revetments experienced minor damage in Naples and Marco Island. Several man-made dune structures seaward of the Coastal Construction Control Line (Collier County) received minor damage at Vanderbilt Beach and Marco Island. Damage was estimated to be$100,000. Tropical Storm Bob - 1985 - had maximum sustained winds of 40 knots as it made landfall near Lely Barefoot Beach in North Naples. There was widespread flooding throughout the area with rainfall amounts ranging from 7.7" at Naples, 11.6" at Marco Island, 14.5" at Everglades City, to over 22" at the Golden Gate Landfill. Although the sustained winds were only 40 knots, there were several gusts reaching hurricane limits. There were over 1,000 insurance claims filed, only 100 of them were for flood damages, the others were the result of wind and water damage. The Ritz Carlton was under construction at the time and most of the drywall had to be replaced. Tropical Storm Keith - 1988 - formed south of Jamaica moved northwestward to the Yucatan Peninsula, before recurring to the northeast. It made landfall near Sarasota. In spite of the storm occurring at lunar high tide, there was little flood damage except to La Playa Inn on Vanderbilt Beach where 17 rooms, kitchen and dining room received some water damage. There was extensive erosion along the Naples beaches and the Naples Pier received about$500,000 in damages. Tropical Storm Marco-1990-formed in the Florida Straits, south of Key West and moved north before reaching land at Cedar Key. Little damage was reported in Collier County even though the storm passed 43 miles to the west of Naples at time of astronomical high tide. Hurricane Andrew (Cat 5) - 1992 - intensified into a major hurricane east of the Bahamas and made landfall near Homestead,Florida. The storm traversed the peninsula with the eye-wall remaining south of Everglades City and Marco Island before recurving towards Louisiana. Some coastal flooding occurred after the storm passed to our east because of strong onshore winds and high tides. Storm surge values were generally between 6-7 feet NAVD along the south coast from Goodland to Chokoloskee Island. Tropical Storm Jerry - 1995 - formed in the western Bahamas and moved northward entering the east coast of Florida north of Palm Beach. As it moved northwestward a feeder band remained nearly stationary over southwest Collier County for nearly 18 hours. Twenty-four hour rainfall amounts ranged from 17 inches in East Naples to 6-7 inches in Immokalee. Widespread flooding occurred in East Naples, the City of Naples and Golden Gate from this 100-year storm. Within two days of this extraordinary event, sheet flow flooding from Hendry County and north Collier County created serious flooding problems along the Lee and Collier line in Bonita Springs as well as increased floodwaters in Golden Gate Estates and Immokalee. Hurricane Opal-1995-formed in the Bay of Campeche in late September. It moved northeastward and deepened into a Category 5 hurricane during the morning hours of October 4th and came ashore near Fort Walton Beach as a Category 3 during the early evening hours on October 4t. The associated feeder band, like T.S. Jerry two months prior, dumped several inches of rain on already super saturated areas of North Naples, Big Corkscrew Island and Immokalee. Sheet flow flooding remained over much of the area near Immokalee Rd(CR 846)until mid-November. Tropical Storm Gabrielle- Sept. 13-14, 2001 - Gabrielle formed a low pressure system that developed along a decaying frontal system near Bradenton. As it moved southward, away from the peninsula, it Page 105 Collier County,Florida Floodplain Management Plan March 201511 amec 41 . foster wheeler Cor County 16417 developed Tropical storm characteristics. On Thursday afternoon at 5:00PM, the National Hurricane Center placed all of southwest Florida under a Hurricane Watch. At that time, Gabrielle was 150 miles west southwest of Naples. As it began meandering to the Northeast it intensified into a Tropical Storm with winds of 60 knots. The closest point of approach to Naples (70nm west) occurred on Friday morning at 5:00AM. Although rainfall exceeded 8 inches at several locations throughout the County, precipitation amounts at the Government Center were near 2 inches for the 24 hours preceding the storm. The National Weather Service issued a Coastal Flood Watch for Collier County on Thursday afternoon. Water heights along the shore from the Lee County line to Chokoloskee Island were generally 3-5 ft above normal. It was estimated that approximately 50-60 residences and businesses experienced flooding and most of these structures were built prior to 1978 (pre-FIRM). Water depths in homes and businesses ranged from 1 inch to 18 inches. The timing of flooding conditions occurred on Friday morning from approximately 7:30AM in North Naples to 9:30AM in Everglades City. Waters began to recede after noon throughout the coastal area. Hurricanes of 2004 — Hurricane Charley had the greatest direct impact on the residents of Collier County. Its effect on Collier County was that of an F-2 tornado since the hurricane wind field was so small. Only one to two feet of storm surge was reported,having no effect on the infrastructure. Personal property losses approximated $1.5M, mainly lanais. Debris costs to government were approximately $6.0M. No injuries were reported and the damaged area was around North Naples. The greatest general- population impacts of the storm were: loss of power and shortage of fuel for vehicles. Hurricanes Frances and Jeanne affected the northeast portions of the county slightly due mainly to the fact that we were on the dry-side of the hurricanes. One manufactured home in Immokalee sustained major damages from Hurricane Frances. No injuries were reported. No flooding problem was experienced in any of the three hurricanes. Hurricane Wilma — 15-25 October 2005 - Wilma formed and became an extremely intense hurricane over the northwestern Caribbean Sea. It had the all-time lowest central pressure for an Atlantic basin hurricane, and it devastated the northeastern Yucatan Peninsula. Wilma also inflicted extensive damage over southern Florida. Maximum sustained winds were estimated to be near 105 kt(category 3 intensity) when landfall of the center occurred in southwestern Florida near Cape Romano around 1030 UTC 24 October. Greatest storm surge for Collier County was measured in Everglades City at 5.67 feet caused by the unusually fast forward speed. The hurricane, continuing to accelerate and now moving at a forward speed of 20 to 25 kt, crossed the southern Florida peninsula in 4.5 hours, with the center emerging into the Atlantic just southeast of Jupiter around 1500 UTC. Because the hurricane moved quickly across the southern Florida peninsula, however, the rain amounts were not very large in Florida and storm totals ranged generally from 3 to 7 inches. Wilma produces one tornado in Collier. That tornado resulted in the only direct fatality from the Hurricane. Overall, 10 more indirect fatalities resulted from Wilma; mostly due to cleanup efforts. Tropical Storm Debby —June 23-24, 2012 - Debby originated from a broad area of low pressure that developed over the southern Gulf of Mexico during the third week of June. The low drifted slowly northward across the Gulf and finally strengthened to a tropical storm on the afternoon of June 23rd. At that time,the closest her wind-field was to Naples was 200 miles. That said,her biggest impact to Collier County was the three to three and a half foot of storm surge produced around Everglades City and three tornadoes, one of which affected East and North Naples communities. The storm surge produced resulted in about $110K in road, water pump damages as well as the associated labor and equipment costs of repair. Figures 4-29 and 4-30 reflect past hurricane strike data for land falling major hurricanes over Collier County,FL as provided by the National Hurricane Center(http://coast.noaa.gov/hurricanes/#). Page 106 Collier County,Florida Floodplain Management Plan March 2015 Wit amec foster wheeler 1 6 , 1 7 Cotter County TS/5S ,.. I i _ r 4 :- _ t i Id . Y' Ilk 7 ,„... 1 , , 1": ...% ,� 1 ` tiAt i ;' ..' i itt -_ Celli r , 304 t :It ' ' x 1 - --, t »w c�� / \. ; i*: 1 �� ',5x o3 al Palm A I t- _,.�.�-' - in_ .++_ arco �l d - -� %f 4 ! lir/ lartibiti :Lee, t � / ....:"-.441111111%li,. ' . - and ~~`^-. CYC rens F , I _-»/- 1 Source: NOAA/National Hurricane Center Figure 4-29—Historical Hurricane Tracks(1848-2014) Legend H5 (Dark Purple)=Hurricane Category 5 H1 (Yellow)=Hurricane Category 1 H4(Light Purple)=Hurricane Category 4 TS/SS =Tropical or Subtropical Storm I H3 (Red)=Hurricane Category 3 TD/SD=Tropical or Subtropical Depression H2(Orange)=Hurricane Category 2 Page 107 Collier County,Florida Floodplain Management Plan 7 March 2015 amec iii foster wheeler 7 COT Count 16A17 y Hurricane Strikes vs Population for Collier, Florida 280,000- 260,000- lu ^ I P 240,000- 220,000- ri 200,000- 180,000- a 160,000 0 1 140,000- a r a° 120,000- 100000 80,000 60,000- 40,000 20,000 1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 Decade Legend P Hurricane Category 1.2 -Direct Strike (tang ---Indirect Stnke II Hurricane Category 3.5 r Conventional Landfall Stam : .s (Moving from water to land) 131 Storm moving faster than 30 m.p.h. A Exiting or Inland Storm (Moving from land to water) Hurricane Strtce Data: National Hurricane Center Population Data: U.S.Census Bureau NOTE:Population values may be missing in some counties,particularly for earlier periods.This is most often attributable to the fact that the county had not yet been established. NOTEThere may be discrepancies between the strike data shown in this chart and the HURDAT strike data used in the Historical Hurricanes Tracks Tool. The National Hurricane Center is currently updating the strike data used for these charts. For more information visit http:/hvww.aoml.noaa.govlhrd/data_sublre_anal.html NOTE:Population data is current as of 2000 U.S.Census. X-axis on graphs depict years through 2010 to illustrate storms that have occurred from 2000-2006. Figure 4-30-Hurricane Strikes for Collier County Page 108 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler Cor County 1 6 A 1 7 ......--...„,......... Table 4-15 shows hurricane and tropical storm data reported by NCDC since 1998 for Collier County. Table 4-15-NCDC Hurricane/Tropical Storm Data for Collier County,1998-2014 Crop Location Date Event Type Ieuries Property Damage Damage g Coastal Collier 09/25/1998 Hurricane 0 $0 $0 Coastal Collier 08/13/2004 Hurricane 0 $2,500,000 $0 Coastal Collier 09/04/2004 Hurricane 0 $0 $0 Inland Collier 09/04/2004 Hurricane 0 $0 $0 Inland Collier 07/08/2005 Hurricane 0 $0 $0 Coastal Collier 10/24/2005 Hurricane 1 $0 $0 Inland Collier 09/25/2008 Tropical Storm 0 $0 $0 Coastal Collier 11/04/1998 Tropical Storm 0 $0 $0 Inland Collier 11/04/1998 Tropical Storm 0 $0 $0 Coastal Collier 09/20/1999 Tropical Storm 0 $325,000 $0 Coastal Collier 09/16/2000 Tropical Storm 0 $0 $0 Coastal Collier 09/13/2001 Tropical Storm 0 $50,000 $0 Inland Collier 08/30/2006 Tropical Storm 0 $0 $0 Coastal Collier 08/30/2006 Tropical Storm 0 $0 $0 Inland Collier 08/18/2008 Tropical Storm 0 $0 $0 Coastal Collier 08/18/2008 Tropical Storm 0 $20,000 $0 Coastal Collier 08/26/2012 Tropical Storm 0 $0 $0 Total: $2,895,000 $0 Source: NCDC Table 4-16 shows SHELDUS events related to hurricanes and tropical storms from 1960 through 2013. Table 4-16-SHELDUS Hurricane/Tropical Storm Data for Florida,including Collier County- 1960 to 2013 Date Hazard Type Injuries/Fatalities Crop Damage Property Damage 09/1960 Hurricane/Tropical Storm 43/0 $0 $0 10/1964 Hurricane/Tropical Storm 2/0 $0 $1,633,639 09/1965 Hurricane/Tropical Storm 0/0 $0 $10,875,677 06/1966 Hurricane/Tropical Storm 0/0 $0 $678,304 10/1966 Hurricane/Tropical Storm 0/0 $513,573 $513,573 06/1968 Hurricane/Tropical Storm 0/0 $0 $8,163,617 10/1968 Hurricane/Tropical Storm 0/0 $0 $643,669 06/1972 Hurricane/Tropical Storm 1/0 $415 $83,181 06/1974 Hurricane/Tropical Storm 0/0 $1,968 $0 09/1979 Hurricane/Tropical Storm 0/0 $348,779 $3,487,797 08/1981 Hurricane/Tropical Storm 0/0 $985,685 $98,568 08/1985 Hurricane/Tropical Storm 0/0 $0 $161,569 10/1987 Hurricane/Tropical Storm 0/0 $0 $14,647 08/1992 Hurricane/Tropical Storm 0/3 $415,105,133 $10,377,628,331 11/1994 Hurricane/Tropical Storm 0/0 $3,274,806 $3,274,806 08/1995 Hurricane/Tropical Storm 0/0 $218,369 $131,021 10/1995 Hurricane/Tropical Storm 0/0 $0 $3,057,178 11/1998 Hurricane/Tropical Storm 9/0 $4,083,383 $6,125,074 09/1999 Hurricane/Tropical Storm 0/0 $0 $113,611 09/2000 Hurricane/Tropical Storm 0/0 $0 $16,910 09/2001 Hurricane/Tropical Storm 0/0 $0 $21,923 08/2004 Hurricane/Tropical Storm 0/0 $0 $1,068,798 09/2004 Hurricane/Tropical Storm 0/0 $18,498,438 $127,639,224 Page 109 Collier County,Florida Floodplain Management Plan it March 2015 amec foster wheeler 16A17 Co ler County Date Hazard Type Injuries/Fatalities Crop Damage Property Damage 10/2005 Hurricane/Tropical Storm 1/1 $0 $2,982,040,457 08/2008 Hurricane/Tropical Storm 0/0 $0 $3,606 Total: $443,030,549 $13,527,475,180 Source: SHELDUS v13.1 Storm Surge According to the 2012 Collier County CEMP, it is estimated that only 3 storms caused significant storm surge flooding to the Greater Naples urban area. The urban area is defined as that area west of a line from one mile east of Collier Boulevard to the coast. The three storms that generated storm surge flooding were: • October 7, 1873 -CAT 3 Surge est. 8 to 11 feet MSL • September 25, 1894-CAT 3 Surge est. 10 to 11 feet MSL • September 10, 1960-CAT 4 Max. Surge N Naples 11.86 feet MSL Table 4-17 shows storm surge data reported by NCDC since 1950 for Collier County. Table 4-17-NCDC Storm Surge Data for Collier County,1950-2014 Location Date Event Type Deaths/ Property Damage Crop Injuries Damage Coastal Collier 10/24/2005 Storm Surge 0 $0 $0 Coastal Collier 08/19/2008 Storm Surge 0 $80,000 $0 Coastal Collier 08/27/2012 Storm Surge 0 $6,000,000 $0 Total: $6,080,000 $0 Source: NCDC The following is a description of past storm surge events as provided by NCDC: Hurricane Wilma—October 24,2005 - Hurricane Wilma produced a maximum measured storm tide of 8 feet at the USGS tide gauge at the Turner River near Chokoloskee in southern Collier County, with a storm surge of 7 feet after subtracting a 1 foot astronomical tide. Significant damage to structures close to the water was observed in Chokoloskee, along with some washing out of part of the road leading to the town. A storm tide of 7 feet was estimated in Marco Island by Collier County Emergency Management, along with significant beach erosion. A National Weather Service survey team estimated a storm tide of 4 feet in Everglades City based on debris line heights, with little structural damage. The National Ocean Service tide gauge in Naples recorded a maximum storm tide of 4.8 feet, with a storm surge of 3.8 feet after considering astronomical tide levels. Tropical Storm Fay — August 19, 2008 - Tropical Storm Fay affected South Florida on the 18th and 19th of August. The storm made landfall early in the morning of the 19th near Cape Romano, and moved over inland sections of South Florida during the morning and afternoon hours of the 19th,exiting the area near Lake Okeechobee. Fay caused tropical storm force winds, significant rainfall flooding in some areas, as well as two confirmed tornadoes. Due to Fay remaining at tropical storm strength and the rather limited nature of its wind field, storm surge and coastal flooding impacts were rather minor. The highest storm tide was estimated to be in the Everglades City/Chokoloskee areas, where the maximum storm tide was in the 5 foot range according to tide gauge data and estimates from local officials. Water of 1-2 feet deep was observed in Everglades City, and the Chokoloskee Causeway was under water for a short time on the morning of the 19th. Minimal storm surge was noted elsewhere, although moderate to locally severe beach erosion occurred in Naples. Page 110 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler �� 17 Collier County Tropical Storm Isaac — August 27, 2012 - Tropical Storm Isaac moved west-northwest across the Florida Straits south of the Florida Keys on August 26. The northern edge of the wind and rain area associated with Isaac affected the South Florida peninsula throughout the day on the 26th.Isaac continued on a west-northwest track into the Gulf of Mexico on the 27th with winds, rain and flooding continuing over parts of South Florida. Severe beach erosion and coastal flooding occurred on Monday,August 27th as the center of Tropical Storm Isaac moved into the Gulf of Mexico. A storm surge of 2.05 feet was measured at the Naples pier. Farther east along the coast, inundation depths as high as 3 feet were reported in Goodland and Everglades City. Inundation in the Naples area was about 1 foot. Most damage from coastal flooding was to infrastructure in the Goodland and Everglades City areas and was estimated at$400,000. Severe beach erosion in the Naples and Marco Island areas led to damage estimated at$5.6 million. Frequency/Likelihood of Future Occurrence Hurricane and Tropical Storm Likely —Given the 81 hurricane and tropical storm occurrences recorded by NOAA over a period of 163 years(1851 -2014),a hurricane or tropical storm affects Collier County on average once every two years. The State of Florida Hazard Mitigation Plan produced a statewide vulnerability analysis based on information provided by county LMS plans. Based on the Collier County LMS plan, the County is categorized as a high-risk jurisdiction as shown in Figure 4-31. Page 111 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler Co ger County 16A17 ......w....„...,_,„....,...„..., ., if-, - t , , ,,,, ,. im_ _,.... , ., . ._ ., '2 Atlantic Ocean 110 4 , , 4'.`. • if , i Gulf of Alexico 'N N. r Hurricane Hazard Ranking - High Medium-High I Medium it S Low • n Not Identified ` v+r 0 2s so Mks I-- J ,_, Source: State of Florida Enhanced Hazard Mitigation Plan Figure 4-31—Hurricane Hazard Ranking by County Page 112 Collier County,Florida Floodplain Management Plan March 2015 amec a foster wheeler Cor County 16A17 6 A Figure 4-32 contains a summary of the probability of occurrence that each county has based on geographic location for a return period of 20-, 50-, 100- or 200-years for a Category 2 hurricane; Collier County has a probability of experiencing a Category 2 hurricane at least once every 20 years. Walton :."en Gadsden - - Jefrersoa Nassau Bay Calhoun Leon Madison Hamilton Baker Columbia Duval Liberty Wakuua Suwannee �. Taylor Union Clay Franklin Lafayette Bradford St. has 4ilantic Gilchrist Alachua - Ocean Dixie Putnam Flag* Levy Marion Vol Crus Lake Sumter Seminole Heiando Gulf of Mexico Orange Pasco Brevard -.•b Polk Osceola N. Pinel Indian River .:.atee Hardee Okeechobee Highlands St Lhcie DeSoto Glades Hurricane Category 2 Winds: Probability of Occurrence by Return Period _ 20 yrs 50 yrs I 100 yrs M. 200 yrs Source: State of Florida Enhanced Hazard Mitigation Plan Figure 4-32-Hurricane Category 2 Probability of Occurrence Page 113 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler CO l r County1 6 A Figure 4-33 contains a summary of the probability of occurrence that each county has based on geographic location for a return period of 200-, 500-, 1,000- or greater than 1,000-years for a Category 5 hurricane;Collier County has a probability of experiencing a Category 5 hurricane at least once every 500 to 1,000 years. Esoambia, Santa 1 Holmes— ' Mena Ok ,aloosa Jackson Washington Gadsden ''�`�'•-�._- Jefferson Nasuu ` Calhoun( - Leon i Madison Hamilton I Baker `I Columbia Duval Liberty' Wakulla Suwannee Gulf Taylor Union- Clay Franklin ' Lafayette ._.- �m Atlantic Bradford SI..IbF ri tAlachua I . Ocean n fi Dixie 'Ich - Putnam Levy Flagler Marion Volusia\ Citrus Lake ' _4 Sumter Seminole Hernando Orange ,m (nilf' of MexicoPasco 1, 6 rd- borougi Polk Osceola Pint1 India er I Hardee 1 Okeechobee Highlands', 5 '�\ m-'70 oto Ma Glades Hurricane Category 6 Winds: 2-1;;;:`''„',4,'" Probability of Occurrence by Return Period _ 200 yrs ® 500 yrs I j 1000 yrs M. _._ >1000 yrs - •� I Source: State of Florida Enhanced Hazard Mitigation Plan Figure 4-33-Hurricane Category 5 Probability of Occurrence Coastal Storm Surge Likely—Given the three storm surge occurrences recorded by the NCDC over a period of 64 years (1950- 2014),a coastal storm surge event affects Collier County on average once every 21 years. Climate Change and Hurricane and Tropical Storms One of the primary factors contributing to the origin and growth of tropical storm and hurricanes systems is water temperature. Sea surface temperature may increase significantly in the main hurricane development region of the North Atlantic during the next century as well as in the Gulf of Mexico. Sea level change will be particularly important in influencing storm surge flooding in the Collier County area, since the area is already subject to flooding from above normal tides, surge and rainfall events from Page 114 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler SuntLy 16A17 hurricanes and less powerful tropical storms. According to a 2014 report from the Union of Concerned Scientists, "tidal flooding, driven by sea level rise, will dramatically increase in U.S. East and Gulf Coast communities over the next 30 years." 4.2.7 Assessment of Areas Likely to Flood in the Future The following areas have been identified by the FMPC as areas likely to flood in the future. Some of these areas are already experiencing flooding but others are not. For example, changes in floodplain development, the watershed,population in combination with climate change and sea level rise will make these targeted areas more likely to flood in the future. Identified Area#1: 100yr SFHAs According to a May 16, 2012 Flood Insurance Study prepared by FEMA, almost the entire County is located within a Special Flood Hazard Area. Given that the population of Collier County is projected to increase by 53% between 2010 and 2040, changes in the floodplain and development within the watershed may increase the base flood elevation in SFHAs due to changes in the built environment. Furthermore, with its low topography, Collier County's infrastructure may be vulnerable to the effects of climate change and sea level rise. Identified Area#2: Areas of Localized Stormwater Flooding Due to a flat terrain and a consistent level of annual precipitation, it is likely that unmitigated properties will continue to experience localized flooding. Future population increases will likely lead to new development. An increase in imperious area will exacerbate localizing flooding issues unless measures are taken to reduce the volume of runoff. Furthermore,the intensity of individual rainfall events is likely to increase in the future due to climate change which may further overwhelm stormwater drainage systems. Identified Area#3: Repetitive Loss Areas Properties categorized as repetitive loss properties have a greater need for flood protection. Repetitive loss can be attributed to development within the 100-yr floodplain as well as localized stormwater flooding. As mentioned above, both types of flooding are likely to increase in the future due to development in the floodplain/watershed as well as due to the effects of climate change and sea level rise. Therefore,is it very likely that unmitigated repetitive loss properties will continue to flood in the future. Identified Area#4: Zone X(Unshaded) Collectively, there are 37,448 buildings within Collier County, Marco Island and Naples that are located outside of the 100-year SFHA with a total value of$13,388,426,118. Flooding is not limited to the 100- yr flood zones,and the Zone X unshaded designation may lead to a false sense of security. As mentioned above, changes in floodplain development and development within the watershed in general are likely to increase the size of the SFHAs due to an increase in impervious area. Therefore, the Zone X unshaded area is likely subject to future flood risk. Page 115 Collier County,Florida Floodplain Management Plan March 2015 ameclIAP foster wheeler CO ler County 6 A 7 4.2.8 Flood Hazards Profile Summary Table 4-18 summarizes the results of the hazard profile for Collier County based on hazard identification data and input from the FMPC. For each hazard profiled within Section 4.2, this table includes the likelihood of future occurrence and whether or not the hazard is considered a priority for the County. Table 4-18-Summary of Flood Hazard Profile Results Hazard Likelihood of Future Occurrence Priority Hazard Climate Change and Sea Level Rise Highly Likely Y Coastal/Canal Bank Erosion Highly Likely Y Flood: Stormwater/Localized Flooding Highly Likely Y Hurricane and Tropical Storms (including Storm Surge) Likely Y _Flood: 100-1500-year Occasional Y Dam/Levee Failure Unlikely N Page 116 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler 16A17 Cor County 4.3 Vulnerability Assessment 44 CFR Subsection D §201.6(c)(2)(ii): [The risk assessment shall include a] description of the jurisdiction's vulnerability to the hazards described in paragraph (c)(2)(i) of this section. This description shall include an overall summary of each hazard and its impact on the community. Plans approved after October 1, 2008 must also address NFIP insured structures that have been repetitively damaged by floods. The plan should describe vulnerability in terms of: A) The types and numbers of existing and future buildings, infrastructure, and critical facilities located in the identified hazard areas; (B): An estimate of the potential dollar losses to vulnerable structures identified in paragraph(c)(2)(ii)(A) of this section and a description of the methodology used to prepare the estimate; and (C): Providing a general description of land uses and development trends within the community so that mitigation options can be considered in future land use decisions. The FMPC conducted a vulnerability assessment of the hazards identified as a priority in order to assess the impact that each hazard would have on the County. The vulnerability assessment quantifies, to the extent feasible using best available data,assets at risk to natural hazards and estimates potential losses. Vulnerability assessments followed the methodology described in the FEMA publication Understanding Your Risks—Identifying Hazards and Estimating Losses (August 2001). The vulnerability assessment first describes the total vulnerability and values at risk and then discusses vulnerability by hazard. Data used to support this assessment included the following: • County GIS data(hazards,base layers,and assessor's data) • Hazard layer GIS datasets from federal agencies • Written descriptions of inventory and risks provided by the State Hazard Mitigation Plan • Other Existing plans and studies provided by the County Properties at Risk Collier County's 2014 parcel and building footprint layers were used as the basis for the inventory of properties at risk. Building exposure counts by FEMA flood zone were determined using a spatial intersection of the building footprints provided by Collier County and the effective FEMA flood zones provided in the Collier County DFIRM Database effective 5/16/2012. In order to determine the correct occupancy type for each parcel, the land use codes provided in the Collier County tax parcel data were translated into the following occupancy types which are specific to FEMA's Hazus software: Agricultural,Commercial,Education,Government,Industrial,Religious and Residential. The building values are based on 2014 Collier County tax assessor data. Content value estimations are based on the FEMA Hazus methodology of estimating value as a percent of improved structure value by occupancy type. Table 4-19 shows the breakdown of the different property types in Collier County and their estimated content replacement value percentages. Table 4-19-Content Replacement Factors Occupancy Type Content Replacement Values Agricultural 0% Residential 50% Commercial 100% Education 100% Page 117 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler Co ier County 1 6 A 1 7 .............„„... Occupancy Type Content Replacement Values Government 100% Religious 100% Industrial 150% Source: Hazus 2.1 Tables 4-20 through 4-23 show the total number of buildings, total building value, estimated content value and total value for all buildings located within a SFHA for Collier County Unincorporated Areas, City of Everglades City,City of Marco Island and City of Naples,respectively. Table 4-20-Properties at Risk by Occupancy Type—Collier County Unincorporated Areas Total Number of Buildings in Total Estimated Occupancy Type Floodplain Building Value Content Value Total Value Zone VE Agricultural 1 $0 $0 $0 Commercial 15 $2,078,539 $2,078,539 $4,157,078 Education 0 $0 $0 $0 Government 20 $311,178 $311,178 $622,355 Industrial 0 $0 $0 $0 Religious 0 $0 $0 $0 Residential 367 $183,611,639 $91,805,819 $275,417,458 Total 403 $186,001,355 $94,195,536 $280,196,892 Zone AE Agricultural 299 $9,731,986 $9,731,986 $19,463,971 Commercial 785 $246,352,548 $241,979,528 $488,332,076 Education _ 62 $80,182,223 $80,182,223 $160,364,446 Government 187 $170,432,941 $170,432,941 $340,865,882 Industrial 116 $43,080,875 $64,621,313 $107,702,188 Religious 37 $17,391,368 $17,391,368 $34,782,736 Residential 20,146 $2,061,361,649 $1,030,680,824 $3,092,042,473 Total 21,632 $2,628,533,590 $1,615,020,183 $4,243,553,772 Zone AH Agricultural 594 $27,017,404 $27,017,404 $54,034,808 Commercial 525 $206,282,854 $206,282,854 $412,565,708 Education 79 $96,430,998 $96,430,998 $192,861,995 Government 352 $83,495,333 $83,495,333 $166,990,665 Industrial 412 $85,782,542 $128,673,814 $214,456,356 Religious 70 $52,077,561 $52,077,561 $104,155,121 Residential 23,983 $2,683,798,591 $1,341,899,295 $4,025,697,886 Total 26,015 $3,234,885,282 $1,935,877,258 $5,170,762,540 Zone A Agricultural 6 $237,256 $237,256 $474,512 Commercial 6 $1,265,286 $1,265,286 $2,530,572 Education 0 $0 $0 _ $0 Government 0 $0 $0 $0 Industrial 0 $0 $0 $0 Religious 0 $0 $0 $0 Page 118 Collier County,Florida Floodplain Management Plan March 2015 amec44, foster wheeler Co ler County Total Number of Buildings in Total Estimated Occupancy Type Floodplain Building Value Content Value Total Value Residential 0 $0 $0 $0 Total 12 $1,502,542 $1,502,542 $3,005,084 Zone X(500-yr) Agricultural 102 $8,391,494 $8,391,494 $16,782,988 Commercial 454 $235,304,743 $235,304,743 $470,609,485 Education 79 $105,795,721 _ $105,795,721 $211,591,442 Government 195 $51,547,828 $51,547,828 $103,095,656 Industrial 177 $56,642,885 $84,964,328 $141,607,214 Religious 48 $28,661,569 $28,661,569 $57,323,138 Residential 22,513 $4,161,476,716 $2,080,738,358 $6,242,215,073 Total 23,568 $4,647,820,956 $2,595,404,041 $7,243,224,997 Zone X(unshaded) Agricultural 182 $20,564,230 $20,564,230 $41,128,460 Commercial 1,156 $653,795,358 $653,795,358 $1,307,590,717 Education 214 $361,457,023 $361,457,023 $722,914,045 Government 353 $73,755,541 $73,755,541 $147,511,082 Industrial 487 $128,454,507 $192,681,760 $321,136,267 Religious 86 $86,132,089 $86,132,089 $172,264,178 Residential 33,695 $6,478,802,090 $3,239,401,045 $9,718,203,135 Total 36,173 $7,802,960,838 $4,627,787,046 $12,430,747,884 Source: Collier County 2014 Tax Assessor's Data,FEMA 2012 DFIRM,Hazus v2.1 Table 4-21-Properties at Risk by Occupancy Type- City of Everglades City Total Number of Buildings in Total Estimated Occupancy Type Floodplain Building Value Content Value Total Value Zone VE Agricultural 0 $0 $0 $0 Commercial 3 $385,226 $344,140 $729,366 Education 0 $0 $0 $0 Government 2 $606,285 $606,285 $1,212,570 Industrial 0 $0 $0 $0 Religious 0 $0 $0 $0 Residential 8 $562,781 $281,391 $844,172 Total 13 $1,554,292 $1,231,816 $2,786,108 Zone AE Agricultural 0 $0 $0 $0 Commercial 34 $3,729,582 $3,591,982 _ $7,321,564 Education 7 $4,769,826 $4,769,826 $9,539,652 Government 15 $2,603,863 $2,603,863 $5,207,726 Industrial 5 _ $292,023 $438,035 $730,058 Religious 3 $286,646 $286,646 $573,292 Residential 368 $21,070,305 $10,535,152 $31,605,457 Total 432 $32,752,245 $22,225,504 $54,977,749 Source: Collier County 2014 Tax Assessor's Data,FEMA 2012 DFIRM,Hazus v2.1 Page 119 Collier County,Florida Floodplain Management Plan 7 March 2015 m amec foster wheeler CO IP Count y 1 0 A_.......„.,, 17 Table 4-22-Properties at Risk by Occupancy Type-City of Marco Island Total Number of Buildings in Total Estimated Occupancy Type Floodplain Building Value Content Value Total Value Zone VE Agricultural 0 $0 $0 $0 Commercial 3 $531,915 $531,915 $1,063,833 Education 0 $0 $0 $0 Government 3 $193,407 $193,407 $386,818 Industrial 0 $0 $0 $0 Religious 0 $0 $0 $0 Residential 152 $127,498,712 $63,749,356 $191,248,220 Total 158 $128,224,034 $64,474,678 $192,698,871 Zone AE Agricultural 3 $0 $0 $0 Commercial 190 $61,405,658 $58,595,449 $120,001,107 Education 13 $15,818,596 $15,818,596 $31,637,192 Government 72 $11,833,209 $11,833,209 $23,666,418 Industrial 20 $3,443,119 $5,164,679 $8,607,798 Religious 14 $18,676,192 $18,676,192 $37,352,383 Residential 6,916 $1,843,880,112 $921,940,056 $2,765,820,167 Total 7,228 $1,955,056,886 $1,032,028,180 $2,987,085,065 Zone X(500-yr) Agricultural 0 $0 $0 $0 Commercial 6 $5,917,763 $5,917,763 $11,835,525 Education 0 $0 $0 $0 Government 3 $171,697 $171,697 $343,395 Industrial 0 $0 $0 $0 Religious 3 $3,332,973 $3,332,973 $6,665,947 Residential 71 $5,926,073 $2,963,037 $8,889,110 Total 83 $15,348,506 $12,385,470 $27,733,976 Zone X(unshaded) Agricultural 0 $0 $0 $0 Commercial 3 $5,370,059 $5,370,059 $10,740,118 Education 0 $0 $0 $0 Government 0 $0 $0 $0 Industrial 0 $0 $0 $0 Religious 0 $0 $0 $0 Residential 292 $95,467,537 $47,733,768 $143,201,305 Total 295 $100,837,596 $53,103,827 $153,941,423 Source: Collier County 2014 Tax Assessor's Data,FEMA 2012 DFIRM,Hazus v2.1 Page 120 Collier County,Florida Floodplain Management Plan March 2015 amecIW foster wheeler Co ier County 16A17 ......,,,,,,....„... Table 4-23-Properties at Risk by Occupancy Type-City of Na les Total Number of Buildings in Total Estimated Occupancy Type Floodplain Building Value Content Value Total Value Zone VE Agricultural 0 $0 $0 $0 Commercial 4 $5,241,072 $5,241,072 $10,482,144 Education 0 $0 $0 $0 Government 7 $239,845 $239,845 $479,690 Industrial 0 $0 $0 $0 Religious 0 $0 $0 $0 Residential 212 $154,777,355 $77,388,677 $232,166,032 Total 223 $160,258,272 $82,869,594 $243,127,866 Zone AE Agricultural 4 $0 $0 $0 Commercial 326 $279,572,431 $276,696,900 $556,269,331 Education 10 $14,993,597 $14,993,597 $29,987,194 Government 177 $75,531,238 $75,531,238 $151,062,475 Industrial 29 $8,316,122 $12,474,183 $20,790,304 Religious 9 $6,971,548 $6,971,548 $13,943,095 Residential 4,950 $2,586,464,928 $1,293,232,464 $3,879,697,391 Total 5,505 $2,971,849,862 $1,679,899,928 $4,651,749,790 Zone AH Agricultural 0 $0 $0 $0 Commercial 26 $9,077,300 $9,077,300 $18,154,600 Education 10 $9,479,969 $9,479,969 $18,959,939 Government 3 $9,392,469 $9,392,469 $18,784,938 Industrial 0 $0 $0 $0 Religious 2 $570,162 $570,162 $1,140,324 Residential 544 $62,756,842 $31,378,421 $94,135,263 Total 585 $91,276,743 $59,898,322 $151,175,064 Zone X(500-yr) • Agricultural 0 $0 $0 $0 Commercial 52 $49,211,312 $48,917,822 $98,129,135 Education 2 $1,089,948 $1,089,948 $2,179,897 Government 14 $17,592,660 $17,592,660 $35,185,320 Industrial 4 $3,055,041 $4,582,562 $7,637,603 Religious 3 $8,321,274 $8,321,274 $16,642,547 Residential 736 $176,396,702 $88,198,351 $264,595,054 Total 811 $255,666,938 $168,702,617 $424,369,555 Zone X(unshaded) Agricultural 0 $0 $0 $0 Commercial 121 $148,429,147 $148,429,147 $296,858,294 Education 23 $29,573,146 $29,573,146 $59,146,293 Government 17 $6,876,207 $6,876,207 $13,752,415 Industrial 1 $2,223,062 $3,334,593 $5,557,655 Religious 9 $14,013,459 $14,013,459 $28,026,918 Page 121 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler Collier County1 6 A 17 Total Number of Buildings in Total Estimated Occupancy Type Floodplain Building Value Content Value Total Value Residential 809 $266,930,158 $133,465,079 $400,395,237 Total 980 $468,045,179 $335,691,631 $803,736,811 Source: Collier County 2014 Tax Assessor's Data,FEMA 2012 DFIRM,Hazus v2.1 Critical Facility Inventory Of significant concern with respect to any disaster event is the location of critical facilities in the planning area. Critical facilities are often defined as those essential services and facilities in a major emergency which, if damaged, would result in severe consequences to public health and safety or a facility which, if unusable or unreachable because of a major emergency, would seriously and adversely affect the health, safety, and welfare of the public. Critical facility locations were provided by Collier County and are shown in Figures 4-34 through 4-37 for Collier County, City of Everglades City, City of Marco Island and City of Naples,respectively. Page 122 Collier County,Florida Floodplain Management Plan ¶. March 2015 amec foster wheeler 1 6 A 1 7 M .N-4 j bO cd Qr 1 d U - JJ. N i To n E FE E p gE + § ' � v N o w E � 5 c m ®'-1d*00•MDy4. L 0 a et§ a 8 s Y a ; e f E F U a 0o a � r 6 CR ® N d V U ) > ,,, ,, ., E U -,i * a ,,, .b W 1- ! U T 4 O2 me Or4► M y t� 11 7 riti w Wok , ; i . a 11 like ,N lie cco cp a c. ~ 01 4. a N / O 73 E m 3 .,. O O >.; a (3 hI 001 -au i a 6. 1" a ua ° Z '''t .. 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Z0 0 CO ler County 16 ,417 17 Existing Land Use As stated in Collier County's Growth Management Plan Future Land Use Element, Collier County is situated in a unique, sensitive and intensely interactive physical environment. Natural resources are abundant: a subtropical climate with annual wet and dry seasons; enormous groundwater productivity; vast wetland areas; large ranges of habitat with diverse and unique flora and fauna, including many species that are federally and/or state listed, warranting special protection; extensive and highly productive estuarine systems; and, many miles of sandy beach. Protection and management of natural resources for long-term viability is essential to support the human population, ensure a high quality of life,and facilitate economic development within Collier County. Figure 4-38 reflects existing land use within Collier County as provided by the South Florida Water Management District Land Use and Cover 2008-2009 dataset. Land Use is categorized according to the Florida Land Use and Cover Classification System(FLUCCS). Tables 4-24 through 4-27 detail existing land use by category and acreage for Collier County Unincorporated Areas, City of Everglades City, City of Marco Island and City of Naples,respectively. Table 4-24-Existing Land Use-Collier County Unincorporated Areas Land Use Acres Bays and Estuaries 40,784 Commercial and Services 4,947 Communications 71 Cropland and Pastureland 73,120 Disturbed Land 2,288 Extractive 2,318 Feeding Operations 37 Herbaceous 7,887 Industrial 915 Institutional 3,113 Lakes 1,636 Major Bodies of Water 24,717 Mixed Rangeland 2,716 Non-Vegetated Wetlands 2,860 Nurseries and Vineyards 1,505 Open Land 2,407 Other Open Lands(Rural) 3,428 Recreational 11,756 Reservoirs 9,291 Residential,High Density 11,734 Residential,Medium Density 19,810 Residential,Low Density 42,123 Shrub and Brushland 23,266 Specialty Farms 345 Streams and Waterways 6,331 Transportation 5,560 Tree Crops 40,874 Upland Coniferous Forests 59,647 Upland Hardwood Forests 30,370 Utilities 725 Vegetated Non-Forested Wetlands 208,442 Wetland Coniferous Forests 376,075 Wetland Forested Mixed 15,327 Wetland Hardwood Forest 315,838 Page 127 Collier County,Florida Floodplain Management Plan March 2015 a amec foster wheeler Cofer County 16A17 Land Use Acres Total 1,352,264 Source: SFWMD 2008-2009 Land Use and Cover dataset Table 4-25-Existing Land Use-City of Everglades City Land Use Acres Bays and Estuaries 86 Commercial and Services 94 Communications 0 Cropland and Pastureland 0 Disturbed Land 0 Extractive 0 Feeding Operations 0 Herbaceous 10 Industrial 0 Institutional 29 Lakes 0 Major Bodies of Water 0 Mixed Rangeland 0 Non-Vegetated Wetlands 0 Nurseries and Vineyards 0 Open Land 21 Other Open Lands(Rural) 0 Recreational 0 Reservoirs 0 Residential,High Density 49 Residential,Medium Density 73 Residential,Low Density 21 Shrub and Brushland 0 Specialty Farms 0 Streams and Waterways 100 Transportation 25 Tree Crops 0 Upland Coniferous Forests 0 Upland Hardwood Forests 0 Utilities 3 Vegetated Non-Forested Wetlands 0 Wetland Coniferous Forests 0 Wetland Forested Mixed 0 Wetland Hardwood Forest 246 Total 757 Source: SFWMD 2008-2009 Land Use and Cover dataset Table 4-26-Existing Land Use-City of Marco Island Land Use Acres Bays and Estuaries 3,515 Commercial and Services 338 Communications 0 Cropland and Pastureland 0 Disturbed Land 0 Extractive 0 Page 128 Collier County,Florida Floodplain Management Plan . March 2015 amec foster wheeler Colt County 16 A 1 7 Land Use Acres Feeding Operations 0 Herbaceous 0 Industrial 0 Institutional 76 Lakes 0 Major Bodies of Water 1,678 Mixed Rangeland 0 Non-Vegetated Wetlands 977 Nurseries and Vineyards 0 Open Land 25 Other Open Lands(Rural) 0 Recreational 513 Reservoirs 42 Residential,High Density 610 Residential,Medium Density 3,188 Residential,Low Density 175 Shrub and Brushland 91 Specialty Farms 0 Streams and Waterways 1,311 Transportation 0 Tree Crops 0 Upland Coniferous Forests 0 Upland Hardwood Forests 72 Utilities 21 Vegetated Non-Forested Wetlands 62 Wetland Coniferous Forests 0 Wetland Forested Mixed 0 Wetland Hardwood Forest 3,074 Total 15,768 Source: SFWMD 2008-2009 Land Use and Cover dataset Table 4-27-Existing Land Use-City of Naples Land Use Acres Bays and Estuaries 10 Commercial and Services 809 Communications 0 Cropland and Pastureland 0 Disturbed Land 0 Extractive 0 Feeding Operations 0 Herbaceous 0 Industrial 0 _ Institutional 178 Lakes 0 Major Bodies of Water 2,396 Mixed Rangeland 0 Non-Vegetated Wetlands 0 Nurseries and Vineyards 0 Open Land 110 Other Open Lands(Rural) 0 Recreational 1,112 Page 129 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler Co ier County 16A17 Land Use Acres Reservoirs 214 Residential,High Density 1,020 Residential,Medium Density 2,754 Residential,Low Density 160 Shrub and Brushland 96 Specialty Farms 0 Streams and Waterways 1,543 Transportation 690 Tree Crops 0 Upland Coniferous Forests 82 Upland Hardwood Forests 97 Utilities 30 Vegetated Non-Forested Wetlands 13 Wetland Coniferous Forests 8 Wetland Forested Mixed 18 Wetland Hardwood Forest 676 Total 12,015 Source: SFWMD 2008-2009 Land Use and Cover dataset Page 130 Collier County,Florida Floodplain Management Plan March 2015 amec 411$ foster wheeler 16A17 cd1 E Iw .o of } LL Q o u o `s " 4 i 1 m < z z z 3 111 " s, • • '4w ! Q Z n o o Ct #a' h' �, ac �♦ 5 8 a n 2 w 5 , d g eke a ~ 2 3 3 0 .+ e o w o �' S ::- y O �_ W $ 3002222 4 1 11 0 a_ U LLL £ �" • 4 �� 6 W �u 'i) +- 0 • Z M o g a o fi U ''.1R■ , Po w < _o m z ryl L w , M :.`k .-4''r-4 1 5 x x �{ ,., . z i 5 a a 1 Z 1.2, 2 on sem} s w 4 .44,1„,s,. 1, 4 0 g q, l``r < < a',' `•V LS `� o w 2 0 § rtidvo 3l . F Q a < g 8 8 ff aw A I I 5 ,, y ¢ O 0. 0 , Z ¢'i yi n e G of t. L. ; E s A 7 o til z....< O«= Ln C3Q UN 04 .4- 6. rawvw. C V 0 a O 0 Co ger Count 16A17 County 4.3.1 Vulnerability of Collier County to Specific Hazards The Disaster Mitigation Act regulations require that the FMPC evaluate the risks associated with each of the hazards identified in the planning process. This section summarizes the possible impacts and quantifies the County's vulnerability to each of the hazards identified as a priority hazard in Table 4-18 in Section 4.2.8 Flood Hazards Profile Summary. The hazards evaluated as part of this vulnerability assessment include: • Climate Change and Sea Level Rise • Coastal/Canal Bank Erosion • Flood: 100-/500-year • Flood: Stormwater/Localized Flooding • Hurricane and Tropical Storms (including storm surge) Vulnerability is measured in general, quantitative terms and is a summary of the potential impact based on past occurrences, spatial extent, and damage and casualty potential. It is categorized into the following classifications: • Extremely Low - The occurrence and potential cost of damage to life and property is very minimal to nonexistent. • Low - Minimal potential impact. The occurrence and potential cost of damage to life and property is minimal. • Medium-Moderate potential impact. This ranking carries a moderate threat level to the general population and/or built environment. Here the potential damage is more isolated and less costly than a more widespread disaster. • High -Widespread potential impact. This ranking carries a high threat to the general population and/or built environment. The potential for damage is widespread. Hazards in this category may have occurred in the past. • Extremely High-Very widespread with catastrophic impact. Vulnerability can be quantified in those instances where there is a known, identified hazard area, such as a mapped floodplain. In these instances, the numbers and types of buildings subject to the identified hazard can be counted and their values tabulated. Other information can be collected in regard to the hazard area, such as the location of critical community facilities (e.g., a fire station), historic structures, and valued natural resources (e.g., an identified wetland or endangered species habitat). Together, this information conveys the impact,or vulnerability, of that area to that hazard. 4.3.2 Climate Change and Sea Level Rise Vulnerability Assessment Likelihood of Future Occurrence—Highly Likely Vulnerability—High Collier County, due to its location on the Gulf Coast, is vulnerable to the potential impacts of climate change and sea level rise. The climate change hazard profile in Section 4.2.1 discusses how climate- driven hazards such as hurricanes and flooding are likely to increase in frequency, and possibly intensity, in the future. Thus the 25-year flood of today may become the 10-year event in the future. The reader should refer to the vulnerability assessment discussions on Flood(Section 4.3.4), Erosion(Section 4.3.3), and Hurricane (Section 4.3.6) for the current exposure and risk to these hazards with the perspective that climate change has the potential to exacerbate the existing risk and vulnerabilities. This section will focus on an assessment of direct impacts from sea level rise,using best available data. The potential impacts of climate change and sea level rise include increased flooding frequency, potential damage to critical Page 132 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler Cofer County 16A17 infrastructure,and increasing public costs associated with flood insurance claims,infrastructure repair and maintenance,environmental impacts and increased costs associated with emergency management efforts. Sea Level Rise Sea level rise can have impacts on the following property and infrastructure in Collier County: • Coastal infrastructure: bridges,docks,piers • Jetties/erosion control structures • Roads and bridges • Utility infrastructure • Erosion hazard zones • Built environment including residential development • Natural resources • Recreational facilities and amenities such as beaches,public access points,and parks Sea level rise can also cause salt water intrusion into the water supply and a loss of property and property tax revenue due to inundation. As discussed in Section 4.2.1, the USACE sea level rise projection for Collier County through 2060 ranges from 0.49 feet to 1.26 feet. Using the moderate acceleration scenario and the mean sea level trend for Naples, FL, Collier County should consider a projected 0.88 feet of sea level rise through 2060 for future planning purposes. NOAA Coastal Services Center provides a sea level rise and coastal flooding impacts viewer in order to assess how sea level rise will impact coastal communities. A link can be found here: http://coast.noaa.gov/slr/. Figure 4-39 reflects the impact of a one-foot sea level rise on Collier County using the coastal flooding impacts viewer provided by NOAA. The sea levels represent inundation at high tide, and areas that are hydrologically connected are shown in shades of blue (darker blue =greater depth). The low-lying areas, displayed in green, are hydrologically "unconnected" areas that may flood. The grey shaded area is unmapped. Table 4-28 provides an exposure analysis based on the elevation of land that structures are located on relative to local high tide. The results do not factor in structure elevation. Page 133 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler 16 /ti ? a, cuu / 4,"(U LI i.,,,,, a a ro v C a f 14. 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F 0 'O A U o „ '4 r, CA G„ r.+ mg. A z N CC z N b Fr61 C it ♦' .1 CC 'cl e,.2 E 11!;co I. 0. Co ler County I. A 17 4.3.3 Coastal/Canal Bank Erosion Vulnerability Assessment Likelihood of Future Occurrence—Highly Likely Vulnerability—Medium Coastal Erosion The severity of coastal erosion is typically measured through a quantitative assessment of annual shoreline change for a given beach cross-section profile (feet or meters per year) over a long period of time. Erosion rates vary as a function of shoreline type and are influenced primarily by episodic events, but can be used in land use and hazard management to define areas of critical concern. Unfortunately, there is no uniform erosion rate database or GIS data layer that defines erosion rates or such areas of critical concern for Collier County's shoreline. Coastal erosion is currently occurring as discussed in Section 4.2.2 and should be expected to continue to occur in the future. Canal Bank Erosion Collier County has experienced canal bank erosion in the past. Canal bank erosion is a natural process, but acceleration of this natural process leads to a disproportionate sediment supply, stream channel instability,land loss,habitat loss and other adverse effects. 4.3.4 Flood: 100-/500-year Vulnerability Assessment Likelihood of Future Occurrence—Occasional Vulnerability—Extremely High Flood damage is directly related to the depth of flooding by the application of a depth damage curve. In applying the curve, a specific depth of water translates to a specific percent damage to the structure which translates to the same percentage of the structure's replacement value. As previously shown in Figure 4- 11, the majority of the County is located in areas vulnerable to the 100-year flood event under normal flood circumstances. Methodology Building counts by FEMA flood zone were determined using a spatial intersection of the building footprints provided by Collier County and the effective FEMA flood zones provided in the Collier County DFIRM Database effective 5/16/2012. In order to determine the correct occupancy class for each parcel, the land use codes provided in the Collier County tax parcel data were translated into the following occupancy types which are specific to FEMA's Hazus software: Agricultural, Commercial, Education, Government, Industrial, Religious and Residential. The occupancy types were translated to ensure the correct depth damage factor was applied to each building based on its occupancy class to ensure a more accurate damage assessment of the building. Figure 4-40 depicts the depth of flooding that can be expected within the County during the 100-year flood event. Page 137 Collier County,Florida Floodplain Management Plan March 2015 amec A foster wheeler 1 6 A1 7 . oo ct a ��3 ZQ 2 k a S O U L s m g E (5 ffi M E r Z X83 1Y 111)' Er p 3 C o -0 " m of V cn ON . i7-42— " vrG4yLii ID �, - . cz / '. .'- ' 2: : t - - -.p rlir'.:1', Oti y' .. _ .mss %.a. L -. r iii * . )10•,.. - N a; g� v = 1e L Rf .. a d M a ac-rj X.., ;U. a ,Q .. gin U u° � N a 0 i k. a 10: 0 16 A17 Co ler County Table 4-29 provides the depth damage factors that were used in calculating flood losses for the County. These depth damage factors were developed based on the default depth damage curve used in Hazus. All depths assume the structure has no basement. Table 4-29-Collier County Flood Loss Damage Factors Percent Damaged(%) Depth Agricultural Commercial Education Government Industrial Religious Residential (ft) 0 0 1 0 0 1 0 18 1 6 9 5 5 10 10 22 2 11 14 7 8 12 11 25 3 15 16 9 13 15 11 28 4 19 18 9 14 19 12 30 5 25 20 10 14 22 12 31 6 30 23 11 15 26 13 40 7 35 26 13 17 30 14 43 8 41 30 15 19 35 14 43 9 46 34 17 22 29 15 45 10 51 38 20 26 42 17 46 11 57 42 24 31 48 19 47 12 63 47 28 37 50 24 47 13 70 51 33 44 51 30 49 14 75 55 39 51 53 38 50 15 79 58 45 59 54 45 50 16 82 61 52 65 55 52 50 17 84 64 59 70 55 58 51 18 87 67 64 74 56 64 51 19 89 69 69 79 56 69 52 20 90 71 74 83 57 74 52 21 92 74 79 87 57 78 53 22 93 76 84 91 57 82 53 23 95 78 89 95 58 85 54 24 96 80 94 98 58 88 54 Source: Hazus 2.1 Values at Risk The loss estimate for flood is based on the total of improved building value and contents value. Land value is not included in any of the loss estimates as generally the land is not subject to loss from floods. It is important to note that information on those properties mitigated (e.g., floodproofed or elevated) in the SFHA was not available for analysis, thus the resulting flood damage loss estimates could be lower than actual figures. Once the total building and content value was calculated,the damage factor was applied to each building based on occupancy type. The loss estimates were then aggregated by flood zone. Tables 4-30 through 4-33 show the building count, total value, estimated damages and loss ratio for buildings that fall within the 1%annual chance floodplain by flood zone and land use type. The loss ratio is the loss estimate divided by the total potential exposure (i.e., total of improved and contents value for all buildings located within the 1% annual chance flood zone) and displayed as a percentage of loss. FEMA considers loss ratios greater than 10% to be significant and an indicator a community may have more difficulties recovering from a flood. Page 139 Collier County,Florida Floodplain Management Plan 4_,.! March 2015a amec foster wheeler 16A17 Colt County Table 4-30-Estimated Building Damage and Content Loss-Collier County Unincorporated Areas Total Number of Total Value Estimated Occupancy Buildings (Building& Building Estimated Estimated Loss Type with Loss Contents) Damage Content Loss Total Damage Ratio Zone VE Agricultural 1 $0 $0 $0 $0 0.0% Commercial 15 $4,157,078 $393,671 $1,661,702 $2,055,373 49.4% Education 0 $0 $0 $0 $0 0.0% Government 20 $622,355 $51,728 $299,211 $350,939 56.4% Industrial 0 $0 $0 $0 $0 0.0% Religious 0 $0 $0 $0 $0 0.0% Residential 366 $275,417,458 $69,320,492 $43,246,783 $112,567,275 40.9% Total 402 $280,196,892 $69,765,891 $45,207,696 $114,973,587 41.0% Zone AE Agricultural 299 $19,463,971 $125,950 $632,459 $758,409 3.9% Commercial 782 $488,332,076 $7,713,193 $18,892,030 $26,605,223 5.4% Education 62 $160,364,446 $736,797 $4,086,032 $4,822,830 3.0% Government 233 $340,865,882 $4,041,341 $25,358,228 $29,399,569 8.6% Industrial 116 $107,702,188 $1,902,674 $4,865,097 $6,767,771 6.3% Religious 37 $34,782,736 $338,534 $2,584,330 $2,922,864 8.4% Residential 20,086 $3,092,042,473 $234,125,287 $131,322,082 $365,447,368 11.8% Total 21,615 $4,243,553,772 $248,983,776 $187,740,258 $436,724,034 10.3% Zone AH Agricultural 591 $54,034,808 $74,529 $649,882 $724,412 1.3% Commercial 523 $412,565,708 $670,732 $2,454,467 $3,125,199 0.8% Education 78 $192,861,995 $206,567 $1,115,879 $1,322,445 0.7% Government 352 $166,990,665 $28,150 $173,117 $201,267 0.1% Industrial 410 $214,456,356 $626,990 $4,214,175 $4,841,165 2.3% Religious 69 $104,155,121 $544,608 $5,068,761 $5,613,369 5.4% Residential 23,852 $4,025,697,886 $81,636,805 $29,503,415 $111,140,220 2.8% Total 25,875 $5,170,762,540 $83,788,380 $43,179,697 $126,968,077 2.5% Zone X(500-yr) Agricultural 22 $16,782,988 $0 $14,991 $14,991 0.1% Commercial 53 $470,609,485 $77,799 $176,564 $254,363 0.1% Education 5 $211,591,442 $1,361 $7,349 $8,710 0.0% Government 6 $103,095,656 $0 $0 $0 0.0% Industrial 12 $141,607,214 $3,378 $61,337 $64,715 0.0% Religious 1 $57,323,138 $0 $2,076 $2,076 0.0% Residential 6,090 $6,242,215,073 $40,069,959 $16,270,923 $56,340,882 0.9% Total 6,189 $7,243,224,997 $40,152,497 $16,533,240 $56,685,737 0.8% Total 54,081 $16,937,738,201 $442,690,544 $292,660,891 $735,351,435 4.3% Source: Collier County 2014 Tax Assessor's Data,FEMA 2012 DFIRM Page 140 Collier County,Florida Floodplain Management Plan March 2015 amec 4 foster wheeler Crier County 16A17 .......--........................... Table 4-31-Estimated Building Damage and Content Loss—City of Everglades City Total Number of Total Value Estimated Estimated Occupancy Buildings (Building& Building Estimated Total Loss Type with Loss Contents) Damage Content Loss Damage Ratio Zone VE Agricultural 0 $0 $0 $0 $0 0.0% Commercial 3 $729,366 $80,505 $266,141 $346,646 47.5% Education 0 $0 $0 $0 $0 0.0% Government 2 $1,212,570 $93,726 $594,818 $688,544 56.8% Industrial 0 $0 $0 $0 $0 0.0% Religious 0 $0 $0 $0 $0 0.0% Residential 6 $844,172 $223,328 $134,380 $357,708 42.4% Total 11 $2,786,108 $397,559 $995,339 $1,392,898 50.0% Zone AE Agricultural 0 $0 $0 $0 $0 0.0% Commercial 34 $7,321,564 $735,862 $2,757,699 $3,493,561 47.7% Education 6 $9,539,652 $361,089 $2,412,743 $2,773,832 29.1% Government 10 $5,207,726 $383,856 $2,502,331 $2,886,187 55.4% Industrial 5 $730,058 $79,269 $242,592 $321,861 44.1% Religious 2 $573,292 $36,060 $277,300 $313,360 54.7% Residential 208 $31,605,457 $6,925,037 $4,480,901 $11,405,937 36.1% Total 265 $54,977,749 $8,521,173 $12,673,566 $21,194,738 38.6% Total 276 $57,763,857 $8,918,732 $13,668,905 $22,587,636 39.1% • Source: Collier County 2014 Tax Assessor's Data,FEMA 2012 DFIRM Page 141 Collier County,Florida Floodplain Management Plan March 2015 amec 4 foster wheeler oyer County 16A1 / .....„,............„ C Table 4-32-Estimated Building Damage and Content Loss-City of Marco Island Total Number of Total Value Estimated Occupancy Buildings (Building& Building Estimated Estimated Loss Type with Loss Contents) Damage Content Loss Total Damage Ratio Zone VE Agricultural 0 $0 $0 $0 $0 0.0% Commercial 3 $1,063,833 $55,368 $276,818 $332,186 31.2% Education 0 $0 $0 $0 $0 0.0% Government 3 $386,818 $30,568 $184,637 $215,205 55.6% Industrial 0 $0 $0 $0 $0 0.0% Religious 0 $0 $0 $0 $0 0.0% Residential 136 $191,248,220 $30,695,697 $20,265,484 $50,961,180 26.6% Total 142 $192,698,871 $30,781,632 $20,726,939 $51,508,571 26.7% Zone AE Agricultural 3 $0 $0 $0 $0 0.0% Commercial 189 $120,001,107 $2,596,961 $7,898,076 $10,495,037 8.7% Education 13 $31,637,192 $374,036 $2,020,566 $2,394,602 7.6% Government 72 $23,666,418 $252,247 $1,559,503 $1,811,750 7.7% Industrial 20 $8,607,798 $221,175 $729,922 $951,097 11.0% Religious 13 $37,352,383 $131,894 $1,342,014 $1,473,907 3.9% Residential 6,706 $2,765,820,167 $271,346,420 $138,951,297 $410,297,717 14.8% Total 7,016 $2,987,085,065 $274,922,734 $152,501,377 $427,424,111 14.3% Zone X(500-yr) Agricultural 0 $0 $0 $0 $0 0.0% Commercial 1 $11,835,525 $5,457 $10,914 $16,371 0.1% Education 0 $0 $0 $0 $0 0.0% Government 0 $343,395 $0 $0 $0 0.0% Industrial 0 $0 $0 $0 $0 0.0% Religious 0 $6,665,947 $0 $0 $0 0.0% Residential 1 $8,889,110 $0 $0 $0 0.0% Total 2 $27,733,976 $0 $0 $0 0.0% Total 7,160 $3,207,517,913 $305,704,366 $173,228,316 $478,932,682 14.9% Source: Collier County 2014 Tax Assessor's Data,FEMA 2012 DFIRM Page 142 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler Coir County 1 6 A 17 Table 4-33-Estimated Building Damage and Content Loss-City of Naples Total Number of Total Value Estimated Occupancy Buildings (Building& Building Estimated Estimated Loss Type with Loss Contents) Damage Content Loss Total Damage Ratio Zone VE Agricultural 0 $0 $0 $0 $0 0.0.% Commercial 4 $10,482,144 $977,303 $4,156,859 $5,134,162 49.0% Education 0 $0 $0 $0 $0 0.0.% Government 7 $479,690 $40,152 $239,776 $279,928 58.4% Industrial 0 $0 $0 $0 $0 0.0.% Religious 0 $0 $0 $0 $0 0.0.% Residential 212 $232,166,032 $45,164,011 $29,012,751 $74,176,761 31.9% Total 223 $243,127,866 $46,181,465 $33,409,386 $79,590,851 32.7% Zone AE Agricultural 4 $0 $0 $0 $0 0.0% Commercial 326 $556,269,331 $9,388,816 $26,585,701 $35,974,518 6.5% Education 10 $29,987,194 $50,663 $277,931 $328,594 1.1% Government 176 $151,062,475 $2,008,726 $12,965,559 $14,974,285 9.9% Industrial 29 $20,790,304 $56,866 $517,166 $574,032 2.8% Religious 9 $13,943,095 $320,958 $2,032,480 $2,353,438 16.9% Residential 4,948 $3,879,697,391 $352,885,961 $195,566,069 $548,452,030 14.1% Total 5,502 $4,651,749,790 $364,711,992 $237,944,906 $602,656,898 13.0% Zone AH Agricultural 0 $0 $0 $0 $0 0.0% Commercial 25 $18,154,600 $104,013 $525,871 $629,884 3.5% Education 10 $18,959,939 $43,498 $234,890 $278,388 1.5% Government 3 $18,784,938 $0 $0 $0 0.0% Industrial 0 $0 $0 $0 $0 0.0% Religious 2 $1,140,324 $0 $7,159 $7,159 0.6% Residential 539 $94,135,263 $3,332,591 $1,718,236 $5,050,827 5.4% Total 579 $151,175,064 $3,480,102 $2,486,157 $5,966,258 3.9% Zone X(500-yr) Agricultural 0 $0 $0 $0 $0 0.0% Commercial 6 $98,129,135 $14,405 $14,405 $28,809 0.0% Education 1 $2,179,897 $0 $0 $0 0.0% Government 1 $35,185,320 $0 $0 $0 0.0% Industrial 1 $7,637,603 $0 $27,542 $27,542 0.4% Religious 1 $16,642,547 $0 $18,078 $18,078 0.1% Residential 8 $264,595,054 $8,632 $2,877 $11,510 0.0% Total 18 $424,369,555 $23,037 $62,902 $85,939 0.0% Total 6,322 $5,470,422,276 $414,396,596 $273,903,351 $688,299,946 12.6% Source: Collier County 2014 Tax Assessor's Data,FEMA 2012 DFIRM Page 143 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler Co ier County 16A17 Flooded acres Also of interest is the land area affected by the various flood zones. The following is an analysis of improved flooded acres in the County in comparison to total area within the County limits. The term "improved"is defined as a parcel having a structure present. Methodology GIS was used to calculate acres flooded by FEMA flood zones. The Collier County parcel layer and effective DFIRM were intersected and the flooded parcel area was calculated in acres. Flood zones were assigned to parcels based on the intersection of a parcel with a flood zone. Parcels can be located in multiple flood zones, and only the flooded acreage within the parcel was included in the calculation for each flood zone. Limitations One of the limitations of this analysis is that the parcel layer does not include right-of-way areas. Due to this,there are voids of land that are not accounted for; therefore,this analysis does not include all acreage in the County. Table 4-34 represents a detailed and summarized analysis of total and improved flooded acres as described by the FEMA DFIRM for Collier County Unincorporated Areas, City of Everglades City,City of Marco Island and City of Naples. Table 4-34-Total Parcel Acres to Improved Flooded Acres by Flood Zone Flood Zone Total Parcel Acres Improved Flooded Acres Collier County Unincorporated Areas Zone AE 290,516 27,790 Zone VE 33,062 367 Zone AH 280,139 65,532 Zone A 659,591 47,792 Zone X(500-yr) 19,819 9,054 Zone X(unshaded) 36,877 18,081 Total 1,320,002 168,616 City of Everglades City Zone AE 1,559 145 Zone VE 861 49 Zone AH 0 0 Zone A 0 0 Zone X(500-yr) 1 1 Zone X(unshaded) 0 0 Total 2,422 195 City of Marco Island Zone AE 10,162 2,783 Zone VE 5,103 253 Zone AH 0 0 Zone A 0 0 Zone X(500-yr) 52 34 Zone X(unshaded) 236 127 Total 15,553 3,196 Page 144 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler 16A17 Co ger county ....,....-.........„.... Flood Zone Total Parcel Acres Improved Flooded Acres City of Naples Zone AE 9,347 4,194 Zone VE 2,382 280 Zone AH 851 434 Zone A 0 0 Zone X(500-yr) 753 515 Zone X(unshaded) 1,120 685 Total 14,453 6,110 Source: Collier County 2014 Tax Assessor's Data,FEMA 2012 DFIRM Population at Risk A separate analysis was performed to determine the population at risk to the individual FEMA flood zones. Using GIS, the flood zones depicted in the FIRM database were intersected with the building footprint layer. Residential buildings that intersected with flood zones were counted and multiplied by the Census Bureau household factor for each community as shown in Table 4-35. Table 4-35-Collier County Population at Risk to Flood Census Bureau Residential Household Population at Occupancy Type Property Count Factor Risk Zone VE Collier County Unincorporated Areas 367 . 2.64 969 City of Everglades City 8 2.64* 21 City of Marco Island 152 2.14 325 City of Naples 212 1.99 422 Zone AE Collier County Unincorporated Areas 20,146 2.64 53,185 City of Everglades City 368 2.64* 972 City of Marco Island 6,916 2.14 14,800 City of Naples 4,950 1.99 9,851 Zone AH Collier County Unincorporated Areas 23,983 2.64 63,315 City of Everglades City 0 2.64* 0 City of Marco Island 0 2.14 0 City of Naples 544 1.99 1,083 Zone A Collier County Unincorporated Areas 0 2.64 0 City of Everglades City 0 2.64* 0 City of Marco Island 0 2.14 0 City of Naples 0 1.99 0 Zone X(500-yr) Collier County Unincorporated Areas 22,513 2.64 59,434 City of Everglades City 0 2.64* 0 City of Marco Island 71 2.14 152 City of Naples 736 1.99 1,465 Zone X(unshaded) Collier County Unincorporated Areas 33,695 2.64 88,955 City of Everglades City 0 2.64* 0 City of Marco Island 292 2.14 625 Page 145 Collier County,Florida Floodplain Management Plan March 2015 amec iiii foster wheeler � 16A17 STunty Census Bureau Residential Household Population at Occupancy Type Property Count Factor Risk City of Naples 809 1.99 1,610 Total 297,183 Source: Collier County 2014 Tax Assessor's Data,FEMA 2012 DFIRM,U.S.Census Bureau(2008-2012) *A separate household factor was not available for Everglades City. The Collier County household factor was used instead. Critical Facilities at Risk A separate analysis was performed to determine critical facilities in the 1% annual chance floodplains. Using GIS,the DFIRM flood zones were overlaid on the critical facility location data. Figure 4-41 shows critical facilities and FEMA flood zones in the County. Figure 4-42 shows critical facilities and 100-yr flood depths in the County. Table 4-36 details critical facilities by facility type, flood zone, replacement value, and base flood elevation Collier County Unincorporated Areas, City of Everglades City, City of Marco Island, and City of Naples. Page 146 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler 1 6 A 1 7 .7„ ... ,„„,,,v N ,..d . ,y,a,cu ct q-2P. co 3 0 0 $ - C q LL ? CO IT T2m o. 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'..2-'-" CO N d L., z o a E tv 423+,a aa c ,. a a �Q " � U U N C3 • o• a u a 0O 0 16417 Table 4-36-Critical Facilities by Flood Zone Estimated 100-yr Facility Name Facility Type Address Flood Depth (Ft) Collier County Unincorporated Areas Zone X(500-yr) 1710 Southwest Health Merrill Gardens At Naples Assisted Living Centers 0.0 Parkway 6135 Rattlesnake Hammock Manorcare At Lely Palms Assisted Living Centers 0.0 Road The Aristocrat Assisted Living Centers 10949 Parnu Street 0.0 Imperial Health Care Center Assisted Living Centers 900 Imperial Golf Course 0.0 Boulevard Aston Gardens At Pelican Marsh LLC Assisted Living Centers 4750 Aston Gardens Way 0.0 Fpl-Golden Gate Electrical Transfer Sta 4105 15th Ave SW 0.0 Golden Gate Fire Control And Rescue District Station 70 Fire 4741 Golden Gate Parkway 0.0 Calusa Park School 4600 Santa Barbara 0.0 Boulevard Immokalee Community School 123 N 4th Street 0.0 Lely School 1 Lely High School 0.0 Boulevard Zone A I-75 Big Cypress Rest Stop Wastewater Facility 0.0 Sunniland Mine-Florida Rock Wastewater Facility 0.0 Zone AE Tuscany Villa Of Naples Assisted Living Centers 8901 Tamiami Trail East 0.0 Manorcare Nursing And Rehabilitation Center Assisted Living Centers 3601 Lakewood Boulevard 0.0 The Glenview At Pelican Bay Assisted Living Centers 100 Glenview Place 0.0 Arbor Glen At Arbor Trace Assisted Living Centers 1000 Arbor Lake Drive 0.0 Barrington Terrace Of Naples Assisted Living Centers 5175 Tamiami Trail East 0.0 Cove At The Marbella The Assisted Living Centers 7425 Pelican Bay Blvd. 0.5 Aristocrat The Assisted Living Centers 10949 Parnu Street 0.4 Juniper Village At Naples Assisted Living Centers 1155 Encore Way 0.0 Terracina Grand Assisted Living Centers 6825 Davis Blvd 5.3 Vanderbilt Beach Assisted Living Home Assisted Living Centers 517 100th Avenue N. 0.6 Collier County Sheriff Correctional Facility 3319 Tamiami Trl E 0.0 Big Cypress Wilderness Correctional Facility 25959 Turner River Rd 1.4 Collier Juvenile Detention Center Correctional Facility 3351 E Tamiami Trl 0.0 Fpl-Capri Electrical Transfer Sta 5785 Collier Blvd 2.8 Lcec-Belle Meade Electrical Transfer Sta 5735 Collier Blvd 1.8 Page 149 Collier County,Florida Floodplain Management Plan March 2015 amec wiqr foster wheeler Copier County 16417 ........-„, Estimated 100-yr Facility Name Facility Type Address Flood Depth (Ft) Electrical Transfer Lcec-Carnestown Stations 32096 Tamiami Trl E 3.1 East Naples Fire Control And Rescue District Station 23 Fire 6055 Collier Boulevard 2.4 Ochopee Fire Rescue Station 66 Fire 40808 East Tamiami Trail 3.5 Isles Of Capri Fire And Rescue Station 50 Fire 175 Capri Boulevard 3.1 East Naples Fire Control And Rescue District Station 22 Fire 4375 Bayshore Drive 0.0 East Naples Fire Control And Rescue District Station 21 Fire 11121 East Tamiami Trail 2.0 U S Post Office-Naples Government 1200 Goodlette Rd N 0.0 Collier County Property Appraiser Government 3950 Radio Rd 0.0 Collier County Health Department Government 3339 Tamiami Trl E 0.0 Collier County-County Court Government 3315 Tamiami Trl E 0.0 Collier County Tax Collector Government 3291 E Tamiami Trl 0.0 Collier County Supervisor Of Elections Government 3295 E Tamiami Trl 0.0 U S Post Office-Chokoloskee Government 195 Smallwood Dr 3.9 U S Post Office-Ochopee Government 38000 Tamiami Trl E 3.8 U S Post Office-Goodland Government 427 Papaya St 0.6 Collier County Tax Collector Government 12668 E Tamiami Trl 0.9 Collier County Tax Collector Government 725 Airport Rd S 1.0 11190 Health Park North Collier Hospital Medical Center Boulevard 0.0 Everglades Police Sub Station Police 32020 East Tamiami Trail 2.2 Collier County Sheriff Office Police 11121 Tamiami Trl E 2.0 Collier County Sheriff Office Police 3305 Tamiami Trail East 1.7 Sheriff Office-Special Oper Police 3123 Terrace Ave 0.5 Manatee School 1880 Manatee Road 0.0 Poinciana School 2825 Airport Pulling Road S 0.0 Manatee School 1920 Manatee Road 0.0 Avalon School 3300 Thomasson Drive 0.2 Naples Park School 685 111th Avenue N 0.0 Shadowlawn School 2161 Shadowlawn Drive 1.2 East Naples School 4100 Estey Avenue 0.1 Alternative Schools School 3710 Estey Avenue 0.4 Pelican Bay Sewage Treat Plant Wastewater Facility 6652 Watergate Way 0.3 Marco Island,City of-RO Plant Wastewater Facility 0.0 Page 150 Collier County,Florida Floodplain Management Plan March 2015 amec i i i foster wheeler Co -rer County 16A17 Estimated 100-yr Facility Name Facility Type Address Flood Depth (Ft) Marco Shores Utilities Wastewater Facility 0.0 Goodland Isles Estates Wastewater Facility 6.3 Port Of The Islands WWTP Wastewater Facility 12600 Union Rd 1.0 Zone AH 2861 Golden Gate Hazels Mansion Incorporated Assisted Living Centers Boulevard East 0.0 6125 Rattlesnake Hammock Arden Courts Of Lely Palms Assisted Living Centers Road 0.0 Lely Palms Retirement Community Assisted Living Centers 1000 Lely Palms Drive 0.0 Coke Alvan St Aubyn Assisted Living Centers 3620 64th Avenue Ne 1.8 Fpl-Weber Electrical Transfer Sta 191 Weber Blvd N 0.0 Fpl-Alligator Electrical Transfer Sta 4995 Davis Blvd 0.0 Lcec-Ave Maria South Electrical Transfer Sta 6095 Camp Keais Rd 0.0 Lcec-Immokalee Electrical Transfer Sta 1299 S 1st Street 0.0 Fpl-Pine Ridge Electrical Transfer Sta 7990 Goodlette-Frank Rd N 0.8 Fpl-Collier B1 Electrical Transfer Sta 8500 Collier Blvd 0.0 Immokalee Fire Control District Station 30 Fire 502 New Market Road East 0.0 East Naples Fire Control And Rescue District Station 20-Headquarters Fire 4798 Davis Boulevard 0.0 North Naples Fire Control And Rescue District Station 45 Fire 1885 Veterans Park Drive 0.0 Golden Gate Fire Control And Rescue District Station 72 Fire 3820 Beck Boulevard 0.0 Immokalee Fire Control District Station 31 Fire 1107 Carson Road 0.0 Collier County Health Department- Immokalee Office Government 419 N First St 0.0 Collier County Emergency Management Government 8075 Lely Cultural Pkwy 0.0 Physicians Regional Medical Center- Collier Boulevard Medical Center 8300 Collier Boulevard 0.0 Collier County Sheriff Office Police 4741 Golden Gate Pkwy 0.0 Pine Ridge School 1515 Pine Ridge Road 0.2 Palmetto School 3000 10th Avenue Se 0.7 Florida Southwestern State College University/College 7007 Lely Cultural Parkway 0.0 Immokalee WWTF Wastewater Facility 0.0 Handy Food Store#91 Wastewater Facility 0.0 Davis Oil Company-Davis Service Center Wastewater Facility 726 E Main St 0.6 Page 151 Collier County,Florida Floodplain Management Plan March 2015 amec I 1,# foster wheeler Co ger County 16 /il ? Estimated 100-yr Facility Name Facility Type Address Flood Depth (Ft) Collier County North Regional WRF Wastewater Facility 1.3 Orange Tree WWTP Wastewater Facility 0.0 Zone X(Unshaded) Harbor Memory Care Of North Collier Assisted Living Centers 101 Cypress Way East 1.8 Windsor Place Assisted Living Centers 2626 Goodlette Road North 0.0 The Carlisle Naples Assisted Living Centers 6945 Carlisle Court 0.0 7801 Airport Pulling Road Harborchase Of Naples Assisted Living Centers North 0.0 Bentley Village Assisted Living Centers 704 Village Circle 0.0 7801 Airport Pulling Road Harborchase Of Naples Assisted Living Centers North 0.0 Bentley Care Center Assisted Living Centers 875 Retreat Drive 0.0 Kiva At Canterbury Limited Liability Company Assisted Living Centers 10 7th Street 0.0 Fpl-Collier Electrical Transfer Sta 7221 Golden Gate Pkwy 0.0 Fpl-Solana Electrical Transfer Sta 1405 Solana Rd 0.0 Fpl-Vanderbilt Electrical Transfer Sta 2355 Piper Blvd 0.0 Fpl-Orangetree Electrical Transfer Sta 625 24th Ave NW 0.0 Immokalee Fire Control District Station 32 Fire 4817 Ave Maria Boulevard 0.4 North Naples Fire Control And Rescue District Station 40 Fire 1441 Pine Ridge Road 0.0 North Naples Fire Control And Rescue District Station 46 Fire 3410 Pine Ridge Road 0.0 North Naples Fire Control And Rescue District Station 43 Fire 16325 Vanderbilt Drive 0.0 Golden Gate Fire Control And Rescue District Station 71 Fire 100 13th Street Southwest 0.0 Big Corkscrew Island Fire Control And Rescue District Station 10 Fire 13240 Immokalee Road 0.0 Big Corkscrew Island Fire Control And Rescue District Station 12 Fire 21520 Immokalee Road 0.0 North Naples Fire Control District Station 44 Fire 8970 Hammock Oak Drive 0.0 Golden Gate Fire Control And Rescue District Station 73 Fire 14575 Collier Boulevard 0.0 North Naples Fire Control And Rescue District Station 42 Fire 7010 Immokalee Road 0.0 U S Post Office-Cpu Veronawalk Government 8090 Sorrento Ln 0.0 U S Post Office-East Naples Carrier Government 3573 Progress Ave 0.0 Page 152 Collier County,Florida Floodplain Management Plan March 2015 amec a foster wheeler Co r Couvity 1 4 17 „.„.,„....., Estimated 100-yr Facility Name Facility Type Address Flood Depth (Ft) Annex U S Post Office-Coco River Government 1130 Creekside Way 0.0 U S Post Office-Immokalee Government 810 N 15th St 0.0 Collier County-Wilson Blvd Government 50 Wilson Blvd S 0.0 Collier County Health Department- Golden Gate Parkway Government 4945 Golden Gate Pkwy 0.0 Collier County-County Court-Golden Gate Government 4715 Golden Gate Pkwy 0.0 Collier County-County Court-North Collier Government Service Center Government 2335 Orange Blossom Dr 0.0 Collier County-County Court- Greentree-Greentree Shopping Center Government 2348 Immokalee Rd 0.0 Collier County-County Court- Immokalee Courthouse Government 106 S First St 0.0 Collier County Property Appraiser Government 4715 Golden Gate Pkwy 0.0 Collier County Property Appraiser Government 2335 Orange Blossom Dr 0.0 U S Post Office-Golden Gate Government 11665 Collier Blvd 0.0 U S Post Office-Golden Gate Carrier Annex Government 4080 15th Ave SW 0.0 U S Post Office-Vanderbilt Beach Government 851 Vanderbilt Beach Rd 0.0 U S Post Office-Cpu Amoco Town Market Government 7770 Preserve Ln 0.0 Collier County Tax Collector Government 2348 Immokalee Rd 0.0 Collier County Tax Collector Government 4715 Golden Gate Pkwy 0.0 Collier County Tax Collector Government 106 1st St S 0.0 Collier County Tax Collector Government 2335 Orange Blossom Dr 0.0 Collier County Tax Collector Government 50 Wilson Blvd S 0.0 Collier County Tax Collector Government 8771 Tamiami Trl N 0.0 Physicians Regional Medical Center- Pine Ridge Medical Center 6101 Pine Ridge Road 0.0 Sheriff Office-Training Police 3702 Estey Ave 3.5 Collier County Sheriff Office Police 776 Vanderbilt Beach Rd 0.0 Collier County Sheriff Office Police 112 S 1st St 0.0 Highlands School 1101 Lake Trafford Road 0.0 Mike Davis School 3215 Magnolia Pond Drive 0.1 Lorenzo Walker Institute School 3702 Estey Avenue 0.2 Immokalee School 401 9th Street N 0.0 North Naples School 16165 Learning Lane 0.0 Walker Institute Of Technology School 3702 Estey Avenue 0.2 Page 153 Collier County,Florida Floodplain Management Plan March 2015 amec 4 foster wheeler Cor County 16A17 Estimated 100-yr Facility Name Facility Type Address Flood Depth (Ft) Parkside School 5322 Texas Avenue 0.0 3250 Golden Gate Big Cypress School Boulevard W 0.0 Eden Park School 3650 Westclox Street 0.0 Estates School 5945 Everglades Blvd N 0.0 Golden Gate School 4911 20th Place SW 0.0 Golden Gate School 5055 20th Place SW 0.0 Golden Terrace North School 2711 44th Terrace SW 0.0 Golden Terrace South School 2965 44th Terrace SW 0.0 Lake Trafford School 3500 Lake Trafford Road 0.0 Laurel Oak School 7800 Immokalee Road 0.0 Lely School 8125 Lely Cultural Parkway 0.0 Osceola School 5770 Osceola Trail 0.0 9480 Airport Pulling Road Pelican Marsh School N 0.0 Sabal Palm School 4095 18th Avenue Ne 0.0 15960 Veterans Memorial Veterans Memorial School Blvd 0.0 Village Oaks School 1601 State Road 29 0.0 Vineyards School 6225 Arbor Boulevard W 0.0 Barron Collier School 5600 Cougar Drive 0.0 Golden Gate School 2925 Titan Way 0.0 Gulf Coast School 7878 Shark Way 0.0 Immokalee School 701 Immokalee Drive 0.0 Cypress Palm School 4255 18th Avenue Ne 0.0 Golden Gate School 2701 48th Terrace SW 0.0 Oakridge School 14975 Collier Boulevard 0.0 Immokalee Technical Center School 508 N 9th Street 0.0 Corkscrew School 1165 County Road 858 0.0 Palmetto Ridge School 1655 County Road 858 0.0 Corkscrew School 1065 County Road 858 0.0 Pinecrest School 313 S Ninth Street 0.0 Immokalee Lf(Eustis Ave.) Solid Waste Eustis Ave Extension 0.0 Naples Sanitary Landfill Solid Waste 3750 White Lake Blvd. 0.0 Immokalee Slf And Transfer Station (Stockade) Solid Waste 700 Stockade Rd @ Cr846 0.0 Ave Maria University University/College 5050 Ave Maria Boulevard 0.0 Barry University-Naples Campus University/College 7007 Lely Cultural Parkway 0.0 Page 154 Collier County,Florida Floodplain Management Plan 7 March 2015 amec AV foster wheeler Colder County 16A17 Estimated 100-yr Facility Name Facility Type Address Flood Depth (Ft) Hodges University-Naples Campus University/College 2655 Northbrooke Drive 0.0 Krehling Industries-Plant 10 Wastewater Facility 0.0 Shell Oil Company Wastewater Facility 0.0 Collier County South Regional WRF Wastewater Facility 5600 Warren St 0.0 Golden Gate WWTP Wastewater Facility 0.0 Collier South Regional WTP Wastewater Facility 3851 City Gate Dr 0.0 Collier North Regional WTP Wastewater Facility 0.0 Apac-Florida Inc.Golden Gate Wastewater Facility 0.0 Krehling Industries-Plant 6 Wastewater Facility 0.0 City of Everglades City Zone AE LCEC-EGC Electrical Transfer Sta 603 Begonia St 0.8 Ochopee Fire Rescue Station 60 Fire 201 Buckner Avenue North 6.8 Collier County-County Court- Everglades-Everglades City Hall Government 102 Copeland Ave N 6.8 City Of Everglades City Hall Government 102 SW Copeland St 6.7 U S Post Office-Everglades City Government 601 Collier Ave 6.8 Collier County Tax Collector Government 102 Broadway Ave E 5.3 Everglades City School 415 School Drive 6.3 Everglades City,City of-WWTF Wastewater Facility 401 Copeland Ave S 7.2 City of Marco Island Zone X(500-yr) Collier County Sheriff Dept Police 990 N Barfield Dr 0.4 Zone AE Lcec-Fred H.Smith Electrical Transfer Sta 1340 Lily Ct 0.9 Lcec-Marco Electrical Transfer Sta 965 N Barfield Dr 2.6 City Of Marco Island Fire Rescue Department Station 50 Fire 1280 San Marco Road 1.2 City Of Marco Island Fire Rescue Department Station 51 Fire 751 East Elkcam Circle 1.5 U S Post Office-Cpu Sunshine Booksellers Government 677 S Collier Blvd 2.8 U S Post Office-Marco Island Government 600 E Elkcam Circle 1.4 City Of Marco Island City Hall Government 50 Bald Eagle Dr 0.8 Collier County Tax Collector Government 1040 Winterberry Dr 1.6 Tommie Barfield School 101 Kirkwood Street 0.4 Marco Island Charter School 1401 Trinidad Street 0.8 Marco Island WWTF&Reclaimed Wastewater Facility 3.1 Page 155 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler 1, 6 A 17 CoNr County Estimated 100-yr Facility Name Facility Type Address Flood Depth (Ft) Water Service Area Zone X(Unshaded) Marco Island Academy School 2255 San Marco Road 0.0 City of Naples Zone X(500-yr) Sheriff Office-Crime Prevention Police 2373 North Horseshoe Dr 0.0 Zone AE Homewood Residence at Naples Assisted Living Centers 770 Goodlette Road,N 6.5 Fpl-Naples Electrical Transfer Sta 1220 5th Ave N 2.5 Collier County Emergency Medical 2705 South Horseshoe Services And Fire Fire Drive 0.0 East Naples Fire Control And Rescue District Station 24 Fire 2795 North Airport Road 0.0 North Naples Fire Control And Rescue District Station 47 Fire 2795 North Airport Road 0.0 City Of Naples Fire Department Sta 1 Fire 835 8th Avenue South 1.7 City Of Naples Fire Department Sta 3 Fire 300 Citation Point 0.0 City Of Naples City Hall Government 735 8th St S 3.3 U S Post Office-Downtown Naples Government 860 6th Ave S 2.1 Collier County Tax Collector Government 2800 Horseshoe Dr N 0.0 Collier County Tax Collector Government 735 8th St S 3.3 Naples Community Hospital Medical Center 350 7th Street North 0.1 Naples Police Department Police 355 Riverside Circle 0.4 Naples,City Of-WWTP I Wastewater Facility 0.9 Zone AH Orchid Terrace Assisted Living Centers 111 Moorings Park Dr 0.0 Lakeside Pavilion Care and Assisted Living Centers Rehabilitation Center 2900 12th Street North 0.0 Zone X(Unshaded) Heritage Healthcare And Rehabilitation Center Assisted Living Centers 777 9th Street North 0.0 The Chateau at Moorings Park Assisted Living Centers 130 Moorings Park Drive 0.0 City of Naples Fire Department Sta 2 Fire 977 26th Avenue North 0.0 Lake Park School 1295 14th Avenue N 0.0 Sea Gate School 650 Seagate Drive 0.0 Gulfview School 255 6th Street S 0.0 Naples School 1100 Golden Eagle Circle 0.0 Source: Collier County 2014 Tax Assessor's Data,FEMA 2012 DFIRM Page 156 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler ; A 17 Co ier County Future Development A GIS analysis was performed for Collier County unincorporated areas to quantify parcels within future development areas that are also located within a special flood hazard area. Methodology The 2014 Collier County parcel layer was used to identify potential areas of future development located within FEMA flood zones. Parcel counts by FEMA flood zone were determined using a spatial intersection of the tax parcels and the effective flood hazard area provided in FEMA's DFIRM Database for Collier County effective 5/16/2012. In the event that a parcel was affected by multiple zones, the flood zone covering the majority of the parcel was assigned to the parcel. Table 4-37 delineates the future development areas by flood zone and land use. Figure 4-43 reflects Collier County future land use designations. Table 4-37-Future Land Use and FEMA Flood Zones—Collier County Unincorporated Areas Unimproved Parcel Future Land Use Count Unimproved Acreage Zone AE Agricultural/Rural Designation 73 8,404.3 Agricultural/Rural Mixed Use District 203 22,035.4 Bayshore/Gateway Triangle Redevelopment 529 2,278.8 Buckley Mixed Use Subdistrict 14 2.2 Conservation Designation 6,016 198,078.9 Estates Designation 5,093 11,997.5 Henderson Creek Mixed Use Subdistrict 18 34.8 Incorporated Area 3,849 12,320.0 Industrial District 50 137.7 Interchange Activity Center Subdistrict 2 2.1 Mixed Use Activity Center Subdistrict 87 182.5 Residential Density Bands 633 816.1 RF-Neutral 293 1,302.6 RF-Receiving 28 3,706.0 RF-Sending 128 4,261.2 Rural Industrial District 3 13.2 Rural Settlement Area District 297 276.1 Urban Coastal Fringe Subdistrict 3,138 7,898.2 Urban Residential Fringe Subdistrict 261 1,884.1 Urban Residential Subdistrict 4,560 11,057.5 Total 25,275 286,689.1 Zone A Agricultural/Rural Designation 28 1,374.3 Agricultural/Rural Mixed Use District 349 65,825.3 Conservation Designation 12,459 535,656.1 Estates Designation 4,777 10,308.0 Rural Industrial District 1 411.0 Urban Residential Subdistrict 2 416.5 Total 17,616 613,991.2 Zone AH Agricultural/Rural Designation 599 12,117.6 Agricultural/Rural Mixed Use District 757 54,936.9 Buckley Mixed Use Subdistrict 7 13.4 Collier Blvd Community Facility Subdistrict 1 0.0 Page 157 Collier County,Florida Floodplain Management Plan March 2015 amec waV foster wheeler Co -ger County 16A17 6 A Unimproved Parcel Future Land Use Count Unimproved Acreage Conservation Designation 52 19,613.4 Corkscrew Island Neighborhood Commercial Subdistrict 19 87.9 Estates Designation 23,117 51,309.5 Goodlette/Pine Ridge Commercial Infill Subdistrict 4 13.9 Incorporated Area 175 99.2 Industrial District 526 827.3 Interchange Activity Center Subdistrict 22 66.9 Livingston/Radio Rd Commercial Infill Subdistrict 3 22.2 Livingston/Veterans Mem Commercial Infill Subdistrict 3 7.1 Mixed Use Activity Center Subdistrict 243 349.3 Orange Blossom Mixed Use District 16 17.2 Residential Density Bands 4,023 3,723.3 RF-Neutral 632 4,906.8 RF-Receiving 630 6,541.5 RF-Sending 1,874 31,392.7 Rural Settlement Area District 388 578.2 Urban Coastal Fringe Subdistrict 33 87.3 Urban Residential Fringe Subdistrict 487 1,880.5 Urban Residential Subdistrict 11,348 20,754.2 Vanderbilt Beach Rd Neighborhood Commercial Subdistrict 1 9.1 Vanderbilt Beach/Collier Blvd Commercial Subdistrict 2 1.7 Total 44,962 209,356.9 Zone VE Agricultural/Rural Designation 13 1,332.3 Conservation Designation 1,024 36,141.5 Incorporated Area 231 7,164.1 Urban Coastal Fringe Subdistrict 35 35.6 Urban Residential Subdistrict 100 125.0 Total 1,403 44,798.7 Zone X(500-yr) Agricultural/Rural Designation 4 373.1 Agricultural/Rural Mixed Use District 47 12,872.6 Buckley Mixed Use Subdistrict 9 4.2 Conservation Designation 77 2,470.4 Estates Designation 2,357 5,548.5 Incorporated Area 640 349.1 Industrial District 58 85.2 Interchange Activity Center Subdistrict 23 157.1 Livingston/Radio Rd Commercial Infill Subdistrict 3 15.5 Livingston/Veterans Mem Commercial Infill Subdistrict 1 0.2 Mixed Use Activity Center Subdistrict 109 197.4 Orange Blossom Mixed Use District 14 7.6 Residential Density Bands 1,849 1,717.9 RF-Neutral 43 87.5 RF-Receiving 57 2,030.3 RF-Sending 17 143.9 Rural Industrial District 4 5.1 Rural Settlement Area District 153 97.3 Page 158 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler Co -ier County Unimproved Parcel Future Land Use Count Unimproved Acreage Urban Coastal Fringe Subdistrict 86 96.2 Urban Residential Fringe Subdistrict 38 19.5 Urban Residential Subdistrict 5,862 6,460.6 Vanderbilt Beach Rd Neighborhood Commercial Subdistrict 1 7.8 Vanderbilt Beach/Collier Blvd Commercial Subdistrict I 7 25.6 Total 11,459 32,772.6 Zone X(unshaded) Agricultural/Rural Designation 6 884.6 Agricultural/Rural Mixed Use District 1,274 5,636.7 Buckley Mixed Use Subdistrict 38 24.1 Conservation Designation 4 684.4 Corkscrew Island Neighborhood Commercial Subdistrict 1 12.5 Estates Designation 3,172 7,749.9 Goodlette/Pine Ridge Commercial Infill Subdistrict 13 45.4 Incorporated Area 805 455.5 Industrial District 169 277.0 Interchange Activity Center Subdistrict 17 19.0 Livingston Road Commercial Infill Subdistrict 1 11.2 Livingston/Eatonwood Ln Commercial Infill Subdistrict 4 29.3 Livingston/Pine Ridge Commercial Infill Subdistrict 2 13.7 Livingston/Veterans Mem Commercial Infill Subdistrict 1 2.4 Mixed Use Activity Center Subdistrict 337 508.8 Orange Blossom Mixed Use District 24 19.1 Residential Density Bands 4,035 2,276.5 RF-Neutral 46 462.5 RF-Receiving 475 745.1 RF-Sending 14 275.5 Rural Settlement Area District 1,225 1,831.1 Urban Coastal Fringe Subdistrict 76 80.4 Urban Residential Fringe Subdistrict 96 139.2 Urban Residential Subdistrict 12,651 8,742.4 I Vanderbilt Beach/Collier Blvd Commercial Subdistrict 10 39.7 Total 24,496 30,966.0 Source: Collier County 2014 Tax Assessor's Data,FEMA 2012 DFIRM Page 159 Collier County,Florida Floodplain Management Plan March 2015a amec foster wheeler 16A17 Z- B = B B B v=> 40 t t 21 iii t .gcl 3 g Te B t $ rt - 38t Q. E°� cQ R LL `o B J E E .7� o i B $ 5 m a A A ~ ffi E ° s c E ii o t a E - t g & c' 8 d w m 1 ! u < 2 g a m 3 E V a A m $ QNB s 4 — � l � 2 '� a K � � o g' � A 5 � "5 Yi m m c,8 11 C x n o E g c '�+ .� a R s 8 0 �' 7r � % w � m c 9 Z H litirilm 11 1 leii I 1 I El---)1i- cu I I. y -o O E W .e :f.• CA GTr J III W J o i p o 2 S Nys 0 ca v k\ 1adv 3is• E X o ° � IN °, c n eaa in (.5 .4 , ,_ Q. _.. ,-/ ---f-- ,..........,, _WOO. 131 Im CO GS in al c' a) a c `a O , 71, z o v � � „. ACO ler County 71 0 i ...........„........„....,..„.., Flood Insurance Analysis One valuable source of information on flood hazards is current flood insurance data for active policies and past claims. Flood insurance is required as a condition of federal aid or a mortgage or loan that is federally insured for a building located in a FEMA flood zone. Collier County has been a participant in the NFIP since September 1979. Collier County has achieved a Class 6 flood insurance rating through participation in the NFIP's Community Rating System which rewards all policyholders in the SFHA with a 20 percent reduction in their flood insurance premiums. Non-SFHA policies (Standard X Zone policies) receive a 10% discount, and preferred risk policies receive no discount. Tables 4-38 through 4-41 reflect NFIP policy and claims data for the County categorized by occupancy type, flood zone,Pre-FIRM and Post-FIRM. Table 4-38-NFIP Policy and Claims Data by Occupancy Type—Collier County Number of Number of Structure Type Policies in Total Premium Total Coverage Closed Total of Closed Force Paid Paid Losses Losses Single Family 33,821 19,588,410 9,573,754,000 536 $6,035,088 2-4 Family 6,238 2,562,955 1,270,703,400 36 $446,754 All Other Residential 28,008 8,544,275 5,347,704,300 23 $191,264 Non-Residential 2,037 3,486,197 838,674,900 79 $2,103,511 Total 70,104 34,181,837 17,030,836,600 674 $8,776,613 Source: FEMA Community Information System,September 2014 Table 4-39-NFIP Policy and Claims Data by Flood Zone—Collier County Number of Number of Total of Closed Flood Zone' Policies in Total Premium Total Coverage Closed Paid Paid Losses Force Losses A01-30& AE Zones 39,273 19,707,539 8,696,121,500 536 $6,542,311 A Zones 14 13,868 2,511,800 0 $0 AO Zones 0 0 0 0 $0 AH Zones 9,565 2,634,326 2,009,316,700 5 $111,286 AR Zones 0 0 0 0 $0 A99 Zones 0 0 0 0 $0 V01-30& VE Zones 990 2,335,192 252,952,700 30 $1,144,570 V Zones 0 0 0 0 $0 D Zones 34 53,236 8,126,600 0 $0 B,C& X Zone _ Standard 902 836,346 202,687,800 36 $229,611 Preferred 19,326 8,601,330 5,859,119,500 59 $559,785 Total 70,104 34,181,837 17,030,836,600 666 $8,587,558 Source: FEMA Community Information System,September 2014 'Flood zone is indicative of historic policy zone. Page 161 Collier County,Florida Floodplain Management Plan T. March 2015 amec4010 foster wheeler 1 1. 6 A 1 7 Co ler County Table 4-40-NFIP Policy and Claims Data Pre-FIRM-Collier County Number of Number of Flood Zone' Policies in Total Premium Total Coverage Closed Paid Total of Closed Force Losses Paid Losses A01-30& AE Zones 7,298 6,888,718 1,384,630,100 462 $5,952,336 A Zones 6 5,642 987,700 0 $0 AO Zones 0 0 0 0 $0 AH Zones 1,113 350,777 191,778,300 1 $29,246 AR Zones 0 0 0 0 $0 A99 Zones 0 0 0 0 $0 V01-30& VE Zones 342 561,717 91,200,900 14 $516,815 V Zones 0 0 0 0 $0 D Zones 1 1,930 151,100 0 $0 B,C& X Zone 2,400 1,179,457 679,729,100 60 $624,845 Standard 164 139,453 33,519,100 23 $134,444 Preferred 2,236 1,040,004 646,210,000 37 $490,401 Total 11,160 8,988,241 2,348,477,200 537 $7,123,239 Source: FEMA Community Information System,September 2014 'Flood zone is indicative of historic policy zone. Table 4-41-NFIP Policy and Claims Data Post-FIRM-Collier County Number of Number of Total of Closed Flood Zone' Policies in Total Premium Total Coverage Closed Paid Paid Losses Force Losses A01-30& AE 31,975 12,818,821 7,311,491,400 74 $589,975 Zones - A Zones 8 8,226 1,524,100 0 $0 AO Zones 0 0 0 0 $0 AH Zones 8,452 2,283,549 1,817,538,400 4 $82,040 AR Zones 0 0 0 0 $0 A99 Zones 0 0 0 0 $0 V01-30& VE 648 1,773,475 161,751,800 16 $627,755 Zones V Zones 0 0 0 0 $0 D Zones 33 51,306 7,975,500 0 $0 B,C& X Zone 17,828 8,258,219 5,382,078,200 43 $353,605 Standard 738 696,893 169,168,700 13 $95,167 Preferred 17,090 7,561,326 5,212,909,500 30 $258,438 Total 58,944 25,193,596 14,682,359,400 137 $1,653,372 Source: FEMA Community Information System,September 2014 'Flood zone is indicative of historic policy zone. The City of Everglades City has been a participant in the NFIP since October 1972. Everglades City is not currently participating in the CRS Program. Tables 4-42 and 4-43 reflect NFIP policy and claims data for Everglades City categorized by occupancy type and flood zone,respectively. Page 162 Collier County,Florida Floodplain Management Plan March 2015 amec AIM foster wheeler Colt Count y 161% 17 .................„......„................ Table 4-42-NFIP Policy and Claims Data by Occupancy Type-City of Everglades City Number of Number of Structure Type Policies in Total Premium Total Coverage Closed Total of Closed Force Paid Paid Losses Losses Single Family 92 $104,840 $20,616,500 48 $559,695 2-4 Family 15 $6,423 $1,305,200 0 $0 All Other Residential 93 $21,546 $15,438,800 0 $0 Non-Residential 22 $116,201 $10,752,600 5 $260,836 Total 222 $249,010 $48,113,100 53 $820,529 Source: FEMA Community Information System,September 2014 Table 4-43-NFIP Policy and Claims Data by Flood Zone—City of Everglades City Number of Number of Total of Closed Flood Zone' Policies in Total Premium Total Coverage Closed Paid Paid Losses Force Losses A01-30& AE Zones 215 $227,730 $46,929,200 45 $795,259 A Zones 0 $0 $0 0 $0 AO Zones 0 $0 $0 0 $0 AH Zones 0 $0 $0 0 $0 AR Zones 0 $0 $0 0 $0 A99 Zones 0 $0 $0 0 $0 V01-30& VE Zones 7 $21,280 $1,183,900 8 $25,272 V Zones 0 $0 $0 0 $0 D Zones 0 $0 $0 0 $0 B,C& X Zone Standard 0 $0 $0 0 $0 Preferred 0 $0 $0 0 $0 Total 222 $249,010 $48,113,100 53 $820,530 Source: FEMA Community Information System,September 2014 'Flood zone is indicative of historic policy zone. The City of Marco Island has been a participant in the NFIP since October 1998. Marco Island has achieved a Class 6 flood insurance rating through participation in the NFIP's Community Rating System which rewards all policyholders in the SFHA with a 20 percent reduction in their flood insurance premiums. Non-SFHA policies receive a 10% discount, and preferred risk policies receive no discount. Tables 4-44 and 4-45 reflect NFIP policy and claims data for Marco Island categorized by occupancy type and flood zone,respectively. Table 4-44-NFIP Policy and Claims Data by Occupancy Type-City of Marco Island Number of Number of Structure Type Policies in Total Premium Total Coverage Closed Total of Closed Force Paid Paid Losses Losses Single Family 4,164 $3,930,892 $1,286,844,500 3 $35,812 2-4 Family 428 $270,802 $79,899,600 0 $0 All Other Residential 8,442 $3,000,784 $1,702,098,200 13 $57,153 Non-Residential 248 $472,804 $88,206,400 0 $0 Total 13,282 $7,675,282 $3,157,048,700 16 $92,964 Source: FEMA Community Information System,September 2014 Page 163 Collier County,Florida Floodplain Management Plan 7 March 2015 amec foster wheeler il; Co ler COunty 1 6 A 1 7 .......„.....„ Table 4-45-NFIP Policy and Claims Data by Flood Zone—City of Marco Island Number of Number of Flood Zone' Policies in Total Premium Total Coverage Closed Paid Total of Closed Force Losses Paid Losses A01-30& AE Zones 12,914 $7,152,315 $3,080,342,800 16 $92,965 A Zones 0 $0 $0 0 $0 AO Zones 0 $0 $0 0 $0 AH Zones 0 $0 $0 0 $0 AR Zones 0 $0 $0 0 $0 A99 Zones 0 $0 $0 0 $0 V01-30& VE $0 Zones 266 $486,918 $54,746,200 0 V Zones 0 $0 $0 0 $0 D Zones 1 $1,969 $350,000 0 $0 B,C& X Zone $0 Standard 68 $20,700 $11,334,700 0 $0 Preferred 33 $13,380 $10,275,000 0 $0 Total 13,282 $7,675,282 $3,157,048,700 16 $92,965 Source: FEMA Community Information System,September 2014 'Flood zone is indicative of historic policy zone. The City of Naples has been a participant in the NFIP since July 1971. Naples has achieved a Class 6 flood insurance rating through participation in the NFTP's Community Rating System which rewards all policyholders in the SFHA with a 20 percent reduction in their flood insurance premiums. Non-SFHA policies receive a 10% discount, and preferred risk policies receive no discount. Tables 4-46 and 4-47 reflect NFIP policy and claims data for Naples categorized by occupancy type and flood zone, respectively. Table 4-46-NFIP Policy and Claims Data by Occupancy Type-City of Naples Number of Number of Structure Type Policies in Total Premium Total Coverage Closed Total of Closed Paid Paid Losses Force Losses Single Family 3,851 $4,861,094 $1,168,707,900 112 $1,427,383 2-4 Family 1,080 $788,284 $224,227,700 5 $43,512 All Other Residential 7,831 $3,603,164 $1,636,996,600 13 $1,012,638 Non-Residential 679 $1,758,483 $283,764,700 35 $828,209 Total 13,441 $11,011,025 $3,313,696,900 165 $3,311,740 Source: FEMA Community Information System,September 2014 Table 4-47-NFIP Policy and Claims Data by Flood Zone—City of Naples Number of Number of Total of Closed Flood Zone' Policies in Total Premium Total Coverage Closed Paid Paid Losses Force Losses A01-30& AE Zones 11,973 $9,318,868 $2,943,938,400 141 $1,764,175 A Zones 0 $0 $0 1 $10,532 AO Zones 0 $0 $0 0 $0 AH Zones 71 $39,065 $16,397,800 0 $0 AR Zones 0 $0 $0 0 $0 A99 Zones 0 $0 $0 0 $0 Page 164 Collier County,Florida Floodplain Management Plan March 2015 amec AV foster wheeler Co ier County 1 6 A 1 Number of Number of 7 Flood Zone' Policies in Total Premium Total Coverage Closed Paid Total of Closed Force Losses Paid Losses V01-30& VE Zones 502 $1,125,131 $94,666,900 11 $1,474,040 V Zones 0 $0 $0 0 $0 D Zones 3 $4,582 $828,600 0 $0 B,C& X Zone Standard 272 $221,636 $57,620,200 10 $51,043 Preferred 620 $301,743 $200,245,000 2 $11,951 Total 13,441 $11,011,025 $3,313,696,900 165 $3,311,739 Source: FEMA Community Information System,September 2014 'Flood zone is indicative of historic policy zone. Repetitive Loss Analysis A repetitive loss property is a property for which two or more flood insurance claims of more than$1,000 have been paid by the NFIP within any 10-year period since 1978. An analysis of repetitive loss was completed for Collier County Unincorporated Areas, City of Everglades City, City of Marco Island and City of Naples to examine repetitive loss properties against FEMA flood zones. Methodology According to 2014 NFIP records, there are a total of 32 unmitigated and nine mitigated repetitive loss properties within Collier County Unincorporated Areas. One unmitigated property is classified as severe repetitive loss. Table 4-48 details repetitive loss building counts, FEMA flood zones, and total payment for the unmitigated properties. Table 4-48—Unmitigated Repetitive Loss Summary—Collier County Unincor?orated Areas Building Count Total Total Flood Building Content Zone' Insured Uninsured Payment Payment Total Paid AE 9 12 $417,458 $87,556 $505,014 AH 5 3 $644,006 $29,775 $673,782 500-yr 0 2 $64,686 $10,674 $75,359 X 0 1 $21,844 $0 $21,844 Total 14 18 $1,147,994 $128,005 $1,275,999 Source: NFIP Repetitive Loss Data 2014 'Flood Zone is based on current 2012 DFIRM. Figure 4-44 illustrates the location of the repetitive loss properties separated out by the classification of mitigated or unmitigated in relation to the known flood hazard areas within Collier County. Page 165 Collier County,Florida Floodplain Management Plan March 2015 4410 amec foster wheeler 16A17 "Pt* L d CI N Y b' / .0 saa s e co e N � O O Q p Z m U � N N N N N N r, O ®la Z ._ O GT. ' GW R CA ,.. ::,), a w 414o.6. —1 icl t • 0 U fir.. lc af 40 m C 01";:r6 I— cn a a) c g n:1 $ o ° o u. O ,r. a ,n c V a ..., .._ N a v ca 0 Ismnqj 0 Co yer 16A17 County According to 2014 NFIP records, there are a total of five unmitigated repetitive loss properties within the City of Everglades City. Table 4-49 details repetitive loss building counts, FEMA flood zones and total payment for the unmitigated properties. Table 4-49—Unmitigated Repetitive Loss Summary—City of Everglades City Building Count Total Total Flood Building Content Zone' Insured Uninsured Payment Payment Total Paid AE 3 2 $317,139 $63,595 $380,734 Total 3 2 $317,139 $63,595 $380,734 Source: NFIP Repetitive Loss Data 2014 'Flood Zone is based on current 2012 DFIRM. Figure 4-45 illustrates the location of the repetitive loss properties separated out by the classification of mitigated or unmitigated in relation to the known flood hazard areas within the City of Everglades City. Page 167 Collier County,Florida Floodplain Management Plan March 2015 amec 4111.0 foster wheeler 1 6 A 1 7 c„, a.) m sia E:f ZQx s 0 O N V � �- o-s� 77, 1 $ O F. L J3 a W Q Q > < X X C O 22 C m O m m m m T. yy C C C C C C 22 N 2 U N N 4 N N N * cn Z 0 l N 0 0 Cmo d W W eet N..0 0 l '''. ..."1 O a 0 A 0 a a OloO 64 0. x I co 11,4 w Tr c w AILN a La E ° a u. c .Q c — 1n V • t N • 0 � 'a� �► o °o 0 r iio 0 1 6 A 1 7 bki 0. rdi al .Y g1 • CA • - O ~ z� T 1:' t. O N v o c y ■ t g' s & m Ei >. - 2 . .6 Q a > Sd x x "6 a) S' U N N N N N N ,4 :5Z •ID 1 w �1 N N O 44ct i 0. 0.3go m a o p y > w+ O '-. o . :4 lit ctU gYid' N �n iip* +... " N 3. ./.4U aj o 0 w ' 0 E 8- z cu a 73 E 14 d' o i of O a O Nu. O 8O cmC d . ,• „., _ � � � > O O '� •'Y U O N u a. O O O 0 Cor County1 6 A y According to 2014 NFIP records, there are a total of five mitigated and 10 unmitigated repetitive loss properties within the City of Naples. Table 4-50 details repetitive loss building counts, FEMA flood zones and total payment for the unmitigated properties. Table 4-50—Unmitigated Repetitive Loss Summary—City of Naples Buildin3 Count Total Total Flood Building Content Zones Insured Uninsured Payment Payment Total Paid AE 5 4 $476,099 $106,485 $582,584 AH 1 0 $3,856 $3,049 $6,904 Total 6 4 $479,955 $109,532 $589,488 Source: NFIP Repetitive Loss Data 2014 Flood Zone is based on current 2012 DFIRM. Figure 4-47 illustrates the location of the repetitive loss properties separated out by the classification of mitigated or unmitigated in relation to the known flood hazard areas within the City of Naples. Page 170 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler I6AI7 1 7 ti)y 1v al r%Ei zQg. 14, • V rrN ce• m O Q Ta' ' Q X X O m p� m c c c c m N O 2 eri Z 2 O N N N N N N 2 I O C O N b 0 O d v • • 0 OFm :::**41'4:11 r , a tw W J,,,,,,:_ „get t_ — CCs o a. E8- aE Q aa dtrl 0 ' N i 0 r, c0 Is U a r. ua tr. Z V 16A17 Cor County 4.3.5 Flood: Stormwater/Localized Flooding Vulnerability Assessment Likelihood of Future Occurrence—Highly Likely Vulnerability—High Localized flooding occurs at various times throughout the year with several areas of primary concern to the County. Localized flooding and ponding affect streets and property. Figure 4-48 shows the possible correlation between localized flooding and repetitive loss properties. Areas of localized flooding were identified by the Collier County Growth Management Division. The year indicated in the legend correlates to the year of record for when the flooding was observed. *w' • = ,fei_1��_ ill ` —2008 r � ~^a ,h`t —2o,d ` mfr,- It'- m""* yearsof Flooding `in,• 41/.4 a.. ` �. aaai -Roads . 4 �oJ- C II.11 • • �; A 4 g,C F,If" mum Areas of poor damage ' itttil '11, Villsw'm .1 ED Manmpaldss N '4. ,-% «rte �.�y�y� yalt —� ColOer Courtly saili mmsontia Zura � r.-rl''' 1111111111 tom ;. , •I :rI �`:�I�: t,n' t 1 111 I � Ile,. ll. r � : rIL� I �� e, __ � 1 i �t illl �• - p t � . roar r� u_ ra .7.---z,,--2. ry „ lit,_,11 f - - t iii, –– --el_ 2,' ':4,,,f„,--itwv!,-. tivon:•, 111211rti Ve 211 iill 1\ ilT f °. ti R LT 1 111111 Ate ....mmt,....rtl.,..,,,4, 8flleC __ ,...,,513.!$,.:Z,iqr,r".? . _ --: , aSf , - foster 0 1.25 2.5 5 Miles whaler El r i Figure 4-48-Collier County Localized Flooding and Repetitive Loss Properties Page 172 Collier County,Florida Floodplain Management Plan March 2015 a amec foster wheeler Cor County y 4.3.6 Hurricane and Tropical Storm Vulnerability Assessment Likelihood of Future Occurrence—Likely Vulnerability—Extremely High The heavy rains associated with tropical weather systems are not only responsible for major flooding in areas where the storm initially strikes,but can also affect areas hundreds of miles inland. Torrential rains from hurricanes and tropical storms can produce extensive urban and riverine flooding, especially if the storm systems are large and slow moving. Winds from these storms located offshore can drive ocean water up the mouth of a river or canal,compounding the severity of inland overbank flooding. In addition to the combined destructive forces of wind,rain,and lightning,hurricanes can cause a surge in the ocean, which can raise the sea level as high as 25 feet or more in the strongest hurricanes. As a hurricane approaches the coast, its winds drive water toward the shore. Once the edge of the storm reaches the shallow waters of the continental shelf, the water begins to pile up. Winds of hurricane strength eventually force the water onto the shore. At first, the water level climbs slowly, but as the eye of the storm approaches, water rises rapidly. Furthermore, storm surge can also cause extensive damage on the backside of a hurricane as storm surge waters are sucked back out to sea. Natural resources, particularly beaches, are devastated by hurricanes. The erosion of the coastline is considerable due to the impact of wind, waves, and debris in a hurricane event. Beaches need to be replenished with appropriate materials to reduce erosion. Storm surge and subsequent erosion of the shoreline often leads to the loss of property. Vulnerability of the County to coastal erosion is discussed in Section 4.3.3. The Atlantic basin hurricane season runs from June 15`to November 30th. The Atlantic basin includes the Atlantic Ocean, Caribbean Sea, and Gulf of Mexico. Figure 4-49 shows the progress of a typical hurricane season in terms of the total number of tropical systems and hurricanes produced throughout the year in the Atlantic basin. The curves represent the average cumulative production of all named tropical systems,all hurricanes,and those hurricanes which were Category 3 or stronger in those basins. 12 11 11.3 10 9 ATLANTIC BASIN 8 NAMED SYSTEMS 7 AVERAGE CUMULATIVE NUMBER OF SYSTEMS PER YEAR PERIOD OF RECORD:1966-2009 6 6.2 5 4 HURRICANES 3 2 2.3 1 JAN 1 FEB 1 MAR 1 APR 1 MAY 1 JUN 1 JUL 1 AUG 1 SEP 1 OCT 1 Nov 1 DEC Source: NOAA/National Hurricane Center Figure 4-49–Average Number of Tropical Storms per Year(Atlantic Basin) Page 173 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler CiOLI T COunty 1 6 A 1 7 Figure 4-50 represents the total number of major hurricane strikes for Collier County from 1900-2010. McIntosh- g,J c:171)00 Santa Rosa-7 Mobile-7 Baldwin-7 Okaloosa•7 Walton-6 0=00 Jackson-9 Escambla-8 ` II Gulf-4 Pranklin•3 / =boa CF"*'tna G1=008 Brevard-6 Hillsborough.Q Pinellas Indian River-a Okeechobee-4 St.Lucie-3 Sarasota-4 Marten-7 -Charlotte-6 Glades=4 lee-7 Hendry-4 Palm Beach-8 1 Collier-9 Broward 12 Total Strikes D taal� •1 '"2-3 4.5 6 g-o 10 11 12 Note:When comparing values for counties/parishes/boroughs,differences in geographical size should be considered. r-13 1 5 Total number of major hurricane strikes by counties/parishes/boroughs, 1900-2010 Data from NWS NIC 46:Hurricane Experience Levels of Coastal County Populations from Texas to Mame,dory D.Jarrell.Paul J.Hobert,nM Max Mayfield.August,1992,with updates. Source: NOAA/National Hurricane Center Figure 4-50—Major Hurricane Strikes—Collier County Methodology A hurricane surge analysis was conducted by intersecting the building footprint layer provided by Collier County with the polygon shapefile for each hurricane surge layer. The polygon shapefiles depicting each hurricane surge zone were created using a Surge Modeling application created for the Florida Statewide Regional Evacuation Update Study. The data was derived from National Hurricane Center SLOSH model runs on all the NOAA SLOSH basins throughout Florida. The runs create outputs for all different storm simulations from all points of the compass. Each direction has a MEOW (maximum envelope of water) for each category of storm (1-5), and all directions combined result in a MOMs (maximum of maximums) set of data. The MOMs are used in this surge model. The application uses three input parameters or data: elevation (from LIDAR), SLOSH basin results, and contiguous shoreline or sea polygons. Page 174 Collier County,Florida Floodplain Management Plan ¶ March 2015 amec foster wheeler Cor Countyff 1 6 A 1 ......,...„...., ...,. Properties at Risk Tables 4-51 through 4-56 and Figures 4-51 through 4-56 provide a summary of assets at risk to hurricane surge based on each hurricane category. The assets at risk estimate for each hurricane category is based on the total of improved and contents value. The building values are based on 2014 Collier County tax assessor data. Content value estimations are based on the FEMA Hazus methodology of estimating value as a percent of improved structure value by occupancy type as previously shown in Table 4-18. The value of land is not included in the loss estimates as generally the land is not subject to loss from hurricane and tropical storm damage. Table 4-51—Assets at Risk to a Tropical Storm Total Building Total Building Estimated Content Land Use Count Value Value Total Value' Collier County Unincorporated Areas Agricultural 50 $1,333,478 $1,333,478 $2,666,956 Commercial 155 $21,465,279 $17,683,265 $39,148,544 Education 2 $446,032 $446,032 $892,063 Government 56 $2,882,478 $2,882,478 $5,764,955 Industrial 23 $1,559,513 $2,339,270 $3,898,783 Religious 6 $1,870,610 $1,870,610 $3,741,220 Residential 5,328 $319,181,422 $159,590,711 $478,772,133 Total 5,620 $348,738,811 $186,145,843 $534,884,654 City of Everglades City Agricultural 0 $0 $0 $0 Commercial 35 $4,052,305 $3,904,870 $7,957,175 Education 6 $3,857,436 $3,857,436 $7,714,872 Government 15 $3,210,148 $3,210,148 $6,420,296 Industrial 5 $292,023 $438,035 $730,058 Religious 3 $286,646 $286,646 $573,292 Residential 373 $21,529,886 $10,764,943 $32,294,829 Total 437 $33,228,444 $22,462,078 $55,690,521 City of Marco Island Agricultural 0 $0 $0 $0 Commercial 34 $4,508,448 $3,721,752 $8,230,200 Education 0 $0 $0 $0 Government 4 $223,335 $223,335 $446,671 Industrial 0 $0 $0 $0 Religious 0 $0 $0 $0 Residential 271 $116,209,508 $58,104,754 $174,314,262 Total 309 $120,941,291 $62,049,841 $182,991,132 City of Naples Agricultural 3 $0 $0 $0 Commercial 57 $23,479,074 $20,883,709 $44,362,783 Education 1 $703,759 $703,759 $1,407,518 Government 12 $5,332,553 $5,332,553 $10,665,107 Industrial 5 $138,869 $208,304 $347,173 Religious 1 $164,457 $164,457 $328,914 Residential 759 $221,401,187 $110,700,593 $332,101,780 Total 838 $251,219,900 $137,993,375 $389,213,275 Source: Collier County 2014 Tax Assessor's Data,NOAA,FDEM 'Total value does not include land value. Page 175 Collier County,Florida Floodplain Management Plan March 2015 amec 4 foster wheeler 1o417 g vs. „.. t.._ 0.) cu cci a di =Q o 7,C LL j C C c LL . N y c E w U 0 w it 0 F E. vl 3 T, ? m 4a le a• E- g 5 -`a 0 Z o s. 4, w. U w , ` = ' d •ttirl v Cf R Cirif at � 1 E it ,,-4-'.'t',„ un •d « t`' a 1 6 i Ilrr ok 0. V. ' �F tgr • � t "ti ; r, a ,, . ` x co 51 o- co M 04 L R N C Ol dor o NI E ow 3 O O V U a N 0 C = a Po O 0 Cit" County ..„...„...„ Table 4-52-Assets at Risk to Category 1 Storm Surge Total Building Total Building Estimated Content Land Use Count Value Value Total Value' Collier County Unincorporated Areas Agricultural 166 $5,869,582 $5,869,582 $11,739,165 Commercial 531 $137,493,809 $133,377,277 $270,871,086 Education 41 $43,839,372 $43,839,372 $87,678,744 Government 146 $102,096,677 $102,096,677 $204,193,353 Industrial 81 $13,213,808 $19,820,712 $33,034,520 Religious 24 $6,929,756 $6,929,756 $13,859,512 Residential 15,100 $1,291,345,889 $645,672,944 $1,937,018,833 Total 16,089 $1,600,788,892 $957,606,321 $2,558,395,213 City of Everglades City Agricultural 0 $0 $0 $0 Commercial 35 $4,052,305 $3,904,870 $7,957,175 Education 6 $3,857,436 $3,857,436 $7,714,872 Government 17 $3,210,148 $3,210,148 $6,420,296 Industrial 5 $292,023 $438,035 $730,058 Religious 3 $286,646 $286,646 $573,292 Residential 374 $21,612,906 $10,806,453 $32,419,359 Total 440 $33,311,464 $22,503,588 $55,815,052 City of Marco Island Agricultural 0 $0 $0 $0 Commercial 106 $22,976,552 $20,793,780 $43,770,332 Education 4 $4,867,260 $4,867,260 $9,734,521 Government 39 $5,530,305 $5,530,305 $11,060,609 Industrial 15 $2,082,833 $3,124,249 $5,207,082 Religious 4 $3,035,435 $3,035,435 $6,070,870 Residential 4,195 $1,033,881,736 $516,940,868 $1,550,822,605 Total 4,363 $1,072,374,121 $554,291,897 $1,626,666,018 City of Naples Agricultural 4 $0 $0 $0 Commercial 154 $120,949,903 $118,354,538 $239,304,441 Education 1 $703,759 $703,759 $1,407,518 Government 124 $40,473,903 $40,473,903 $80,947,805 Industrial 11 $3,088,145 $4,632,218 $7,720,363 Religious 5 $1,943,580 $1,943,580 $3,887,160 Residential 2,181 $820,130,922 $410,065,461 $1,230,196,383 Total 2,480 $987,290,212 $576,173,459 $1,563,463,671 Source: Collier County 2014 Tax Assessor's Data,NOAA,FDEM 'Total value does not include land value. 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O 0 %%�� 16A17 Collier County Table 4-53-Assets at Risk to Cate ory 2 Storm Surge Total Building Total Building Estimated Content Land Use Count Value Value Total Value' Collier County Unincorporated Areas Agricultural 505 $18,649,754 $18,649,754 $37,299,508 Commercial 1,079 $359,384,338 $355,267,807 $714,652,145 Education 110 $138,108,952 $138,108,952 $276,217,905 Government 252 $195,256,285 $195,256,285 $390,512,570 Industrial 431 $107,445,731 $161,168,596 $268,614,327 Religious 68 $50,449,104 $50,449,104 $100,898,209 Residential 37,037 $4,226,857,087 $2,113,428,544 $6,340,285,631 Total 39,482 $5,096,151,252 $3,032,329,042 $8,128,480,294 City of Everglades City Agricultural 0 $0 $0 $0 Commercial 35 $4,052,305 $3,904,870 $7,957,175 Education 7 $4,769,826 $4,769,826 $9,539,652 Government 17 $3,210,148 $3,210,148 $6,420,296 Industrial 5 $292,023 $438,035 $730,058 Religious 3 $286,646 $286,646 $573,292 Residential 374 $21,612,906 $10,806,453 $32,419,359 Total 441 $34,223,854 $23,415,977 $57,639,831 City of Marco Island Agricultural 3 $0 $0 $0 Commercial 188 $60,308,987 $58,126,216 $118,435,203 Education 13 $15,818,596 $15,818,596 $31,637,192 Government 74 $11,969,384 $11,969,384 $23,938,768 Industrial 20 $3,443,119 $5,164,679 $8,607,798 Religious 13 $17,479,439 $17,479,439 $34,958,877 Residential 6,547 $1,758,827,971 $879,413,985 $2,638,241,956 Total 6,858 $1,867,847,496 $987,972,298 $2,855,819,794 City of Naples Agricultural 4 $0 $0 $0 Commercial 353 $291,923,092 $289,313,975 $581,237,066 Education 21 $24,832,433 $24,832,433 $49,664,865 Government 186 $85,445,714 $85,445,714 $170,891,427 Industrial 30 $9,540,210 $14,310,316 $23,850,526 Religious 12 $9,349,505 $9,349,505 $18,699,010 Residential 5,547 $2,758,145,904 $1,379,072,952 $4,137,218,856 Total 6,153 $3,179,236,858 $1,802,324,894 $4,981,561,751 Source: Collier County 2014 Tax Assessor's Data,NOAA,FDEM 'Total value does not include land value. 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Table 4-54-Assets at Risk to Cate ory 3 Storm Surge Total Building Total Building Estimated Content Land Use Count Value Value Total Value' Collier County Unincorporated Areas Agricultural 723 $31,070,578 $31,070,578 $62,141,156 Commercial 1,203 $487,301,364 $483,184,833 $970,486,197 Education 133 $179,128,275 $179,128,275 $358,256,549 Government 309 $227,290,964 $227,290,964 $454,581,927 Industrial 489 $127,240,243 $190,860,364 $318,100,607 Religious 78 $67,779,850 $67,779,850 $135,559,701 Residential 46,624 $6,047,584,093 $3,023,792,046 $9,071,376,139 Total 49,559 $7,167,395,366 $4,203,106,910 $11,370,502,276 City of Everglades City Agricultural 0 $0 $0 $0 Commercial 35 _ $4,052,305 $3,904,870 $7,957,175 Education 7 $4,769,826 $4,769,826 $9,539,652 Government 17 $3,210,148 $3,210,148 $6,420,296 Industrial 5 $292,023 $438,035 $730,058 Religious 3 $286,646 $286,646 $573,292 Residential 374 $21,612,906 $10,806,453 $32,419,359 Total 441 $34,223,854 $23,415,977 $57,639,831 City of Marco Island Agricultural 3 $0 $0 $0 Commercial 188 $60,308,987 $58,126,216 $118,435,203 Education 13 $15,818,596 $15,818,596 $31,637,192 Government 74 $11,969,384 $11,969,384 $23,938,768 Industrial 20 $3,443,119 $5,164,679 $8,607,798 Religious 13 $17,479,439 $17,479,439 $34,958,877 Residential 6,559 $1,763,899,745 $881,949,872 $2,645,849,617 Total 6,870 $1,872,919,270 $990,508,185 $2,863,427,455 City of Naples Agricultural 4 $0 $0 $0 Commercial 355 $292,084,062 $289,474,945 $581,559,006 Education 21 $24,832,433 $24,832,433 $49,664,865 Government 187 $85,680,979 $85,680,979 $171,361,957 Industrial 30 $9,540,210 $14,310,316 $23,850,526 Religious 12 $9,349,505 $9,349,505 $18,699,010 Residential 5,603 $2,762,841,042 $1,381,420,521 $4,144,261,562 Total 6,212 $3,184,328,230 $1,805,068,697 $4,989,396,927 Source: Collier County 2014 Tax Assessor's Data,NOAA,FDEM 'Total value does not include land value. 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Table 4-55-Assets at Risk to Cate ory 4 Storm Surge Total Building Total Building Estimated Content Land Use Count Value Value Total Value' Collier County Unincorporated Areas Agricultural 851 $35,656,325 $35,656,325 $71,312,649 Commercial 1,233 $489,787,488 $485,670,956 $975,458,444 Education 133 $179,128,275 $179,128,275 $358,256,549 Government 324 $229,272,496 $229,272,496 $458,544,992 Industrial 491 $127,290,800 $190,936,200 $318,227,001 Religious 78 $67,779,850 $67,779,850 $135,559,701 Residential 47,896 $6,198,207,552 $3,099,103,776 $9,297,311,327 Total 51,006 $7,327,122,785 $4,287,547,878 $11,614,670,663 City of Everglades City Agricultural 0 $0 $0 $0 Commercial 35 $4,052,305 $3,904,870 $7,957,175 Education 7 $4,769,826 $4,769,826 $9,539,652 Government 17 $3,210,148 $3,210,148 $6,420,296 Industrial 5 $292,023 $438,035 $730,058 Religious 3 $286,646 $286,646 $573,292 Residential 374 $21,612,906 $10,806,453 $32,419,359 Total 441 $34,223,854 $23,415,977 $57,639,831 City of Marco Island Agricultural 3 $0 $0 $0 Commercial 188 $60,308,987 $58,126,216 $118,435,203 Education 13 $15,818,596 $15,818,596 $31,637,192 Government 74 $11,969,384 $11,969,384 $23,938,768 Industrial 20 $3,443,119 $5,164,679 $8,607,798 Religious 13 $17,479,439 $17,479,439 $34,958,877 Residential 6,559 $1,763,899,745 $881,949,872 $2,645,849,617 Total 6,870 $1,872,919,270 $990,508,185 $2,863,427,455 City of Naples Agricultural 4 $0 $0 $0 Commercial 355 $292,084,062 $289,474,945 $581,559,006 Education 21 $24,832,433 $24,832,433 $49,664,865 Government 187 $85,680,979 $85,680,979 $171,361,957 Industrial 30 $9,540,210 $14,310,316 $23,850,526 Religious 12 $9,349,505 $9,349,505 $18,699,010 Residential 5,603 $2,762,841,042 $1,381,420,521 $4,144,261,562 Total 6,212 $3,184,328,230 $1,805,068,697 $4,989,396,927 Source: Collier County 2014 Tax Assessor's Data,NOAA,FDEM 'Total value does not include land value. 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U N 0 T -6 0 O 0 U ►i 0 0 1 ,, CoCger County Table 4-56-Assets at Risk to Cate ory 5 Storm Surge Total Building Total Building Estimated Content Land Use Count Value Value Total Value' Collier County Unincorporated Areas Agricultural 866 $36,678,393 $36,678,393 $73,356,785 Commercial 1,236 $491,266,251 $487,076,243 $978,342,494 Education 133 $179,128,275 $179,128,275 $358,256,549 Government 329 $229,450,409 $229,450,409 $458,900,818 Industrial 494 $127,445,105 $191,167,658 $318,612,763 Religious 85 $68,041,032 $68,041,032 $136,082,064 Residential 48,183 $6,221,569,879 $3,110,784,939 $9,332,354,818 Total 51,326 $7,353,579,343 $4,302,326,948 $11,655,906,291 City of Everglades City Agricultural 0 $0 $0 $0 Commercial 35 $4,052,305 $3,904,870 $7,957,175 Education 7 $4,769,826 $4,769,826 $9,539,652 Government 17 $3,210,148 $3,210,148 $6,420,296 Industrial 5 $292,023 $438,035 $730,058 Religious 3 $286,646 $286,646 $573,292 Residential 374 $21,612,906 $10,806,453 $32,419,359 Total 441 $34,223,854 $23,415,977 $57,639,831 City of Marco Island Agricultural 3 $0 $0 $0 Commercial 188 $60,308,987 $58,126,216 $118,435,203 Education 13 $15,818,596 $15,818,596 $31,637,192 Government 74 $11,969,384 $11,969,384 $23,938,768 Industrial 20 $3,443,119 $5,164,679 $8,607,798 Religious 13 $17,479,439 $17,479,439 $34,958,877 Residential 6,559 $1,763,899,745 $881,949,872 $2,645,849,617 Total 6,870 $1,872,919,270 $990,508,185 $2,863,427,455 City of Naples Agricultural 4 $0 $0 $0 Commercial 355 $292,084,062 $289,474,945 $581,559,006 Education 21 _ $24,832,433 $24,832,433 $49,664,865 Government 187 $85,680,979 $85,680,979 $171,361,957 Industrial 30 $9,540,210 $14,310,316 $23,850,526 Religious 12 $9,349,505 $9,349,505 $18,699,010 Residential 5,603 $2,762,841,042 $1,381,420,521 $4,144,261,562 Total 6,212 $3,184,328,230 $1,805,068,697 $4,989,396,927 Source: Collier County 2014 Tax Assessor's Data,NOAA,FDEM `Total value does not include land value Page 185 Collier County,Florida Floodplain Management Plan !. 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A y U 3„r o 4 ee cC O > E O. cm e U 71 � � cd cli c W O 'E O U O N V Collier County 1 6 A 1 7 ......„„„ Table 4-57-Critical Facilities at Risk by Storm Surge Category-Collier County Unincorporated Areas Facility Address CAT CAT CAT CAT CAT CAT T 1 2 3 4 5 Alternative Schools 3710 Estey Avenue No No Yes Yes Yes Yes APAC-Florida Inc. Golden Gate No No Yes Yes Yes Yes Arbor Glen at Arbor Trace 1000 Arbor Lake Drive No No No Yes Yes Yes Arden Courts of Lely Palms 6125 Rattlesnake Hammock Rd No No No No No Yes Avalon 3300 Thomasson Drive No No Yes Yes Yes Yes Ave Maria University 5050 Ave Maria Boulevard No Yes Yes Yes Yes Yes Barrington Terrace of Naples 5175 Tamiami Trail East No No Yes Yes Yes Yes Barron Collier 5600 Cougar Drive No No No Yes Yes Yes Barry University 7007 Lely Cultural Parkway No No No Yes Yes Yes Bentley Care Center 875 Retreat Drive No No Yes Yes Yes Yes Bentley Village 704 Village Circle No Yes Yes Yes Yes Yes Big Corkscrew Island fire control and rescue district station 10 13240 Immokalee Road No Yes Yes Yes Yes Yes Big Corkscrew Island fire control and rescue district station 112 21520 Immokalee Road No Yes Yes Yes Yes Yes Big Cypress 3250 Golden Gate Blvd W No Yes Yes Yes Yes Yes Big Cypress Wilderness 25959 Turner River Rd No Yes Yes Yes Yes Yes Calusa Park 4600 Santa Barbara Boulevard No No Yes Yes _ Yes Yes Coke Alvan St Aubyn 3620 64th Avenue NE No No Yes Yes Yes Yes Collier County-Health Department- Immokalee Office 419 N First St No No Yes Yes Yes Yes Collier County-Health Department Golden Gate Parkway 4945 Golden Gate Pkwy No No No Yes Yes Yes Collier County Court-Greentree Shopping Center 2348 Immokalee Rd No No Yes Yes Yes Yes Collier County Court-North Collier Government Service Center 2335 Orange Blossom Dr No No No No Yes Yes Collier County-Emergency Mgmt 8075 Lely Cultural Pkwy No No Yes Yes Yes Yes Collier County-Wilson Blvd 50 Wilson Blvd S No No No Yes _ Yes Yes Collier County-County Court 3315 Tamiami Trl E No No No Yes Yes Yes Collier County Court-Golden Gate 4715 Golden Gate Pkwy No No No Yes Yes Yes Collier County Property Appraiser 2335 Orange Blossom Dr No No No Yes Yes Yes Collier County Sheriff 3301 Tamiami Trl E No No Yes Yes Yes Yes Collier County Sheriffs Office 3301 Tamiami Trail East No No Yes Yes Yes Yes Collier County Sheriffs Office 112 S 1st St No No Yes Yes Yes Yes Collier County Sheriffs Office 11121 Tamiami Trl E No No Yes Yes Yes Yes Collier County Sheriffs Office 4741 Golden Gate Pkwy No No Yes Yes Yes Yes Collier County Sheriffs Office 776 Vanderbilt Beach Rd No No Yes Yes Yes Yes Collier County South Regional WRF 5600 Warren St No No Yes Yes Yes Yes Collier Co Supervisor of Elections 3301 E Tamiami Trl No No No No Yes Yes Collier County Tax Collector 3291 E Tamiami Trl No No Yes Yes Yes Yes Collier County Tax Collector 2348 Immokalee Rd No No No Yes Yes Yes Collier County Tax Collector 12668 E Tamiami Trl No No No Yes Yes Yes Collier County Tax Collector 106 1st St S No No Yes Yes Yes Yes Collier County Tax Collector 2335 Orange Blossom Dr No No No Yes Yes Yes Collier County Tax Collector 50 Wilson Blvd S No No No Yes Yes Yes Collier County Tax Collector 8771 Tamiami Trl N No No Yes Yes 1 Yes Yes Page 188 Collier County,Florida Floodplain Management Plan emec t March 2015 foster wheeler Co ger County 1 6 „:,, 1 7 ....„..„......,.... Facility Address CAT CAT CAT CAT CAT CAT T 1 2 3 4 5 Collier Juvenile Detention Center 3315 E Tamiami Trl No No Yes Yes Yes Yes Collier North Regional WTP No No No No Yes Yes Collier South Regional WTP 3851 City Gate Dr No No Yes Yes Yes Yes Corkscrew 1165 County Road 858 No No Yes Yes Yes Yes Cypress Palm 4255 18th Avenue NE No No Yes Yes Yes Yes Davis Oil Company-Davis Service Center 726 E Main St No No No Yes Yes Yes East Naples 4100 Estey Avenue No No No Yes Yes Yes East Naples Fire Control and Rescue District Station 20-Headquarters 4798 Davis Boulevard No No Yes Yes Yes Yes East Naples Fire Control and Rescue District Station 21 11121 East Tamiami Trail No No Yes Yes Yes Yes East Naples Fire Control and Rescue District Station 23 6055 Collier Boulevard No No Yes Yes Yes Yes Eden Park 3650 Westclox Street No No No No Yes Yes Edison College-Collier Campus 7007 Lely Cultural Parkway No No No Yes Yes Yes Estates 5945 Everglades Boulevard N No No No No Yes Yes FPL-Alligator 4995 Davis Blvd No No No Yes Yes Yes FPL-Capri 5785 Collier Blvd No No Yes Yes Yes Yes FPL-Collier 7221 Golden Gate Pkwy No No Yes Yes Yes Yes FPL-Collier Bl 8500 Collier Blvd No No Yes Yes Yes Yes FPL-Golden Gate 4105 15th Ave SW No No No Yes Yes Yes FPL-Orangetree 625 24th Ave NW No No No Yes Yes Yes FPL-Pine Ridge 7990 Goodlette-Frank Rd N No No Yes Yes Yes Yes FPL-Solana 1405 Solana Rd No No Yes Yes Yes Yes FPL-Vanderbilt 2355 Piper Blvd No No Yes Yes Yes Yes FPL-Weber 191 Weber Blvd N No No Yes Yes Yes Yes Golden Gate 4911 20th Place SW No No No Yes Yes Yes Golden Gate 5055 20th Place SW No No No Yes Yes Yes Golden Gate 2925 Titan Way No No No Yes Yes Yes Golden Gate 2701 48th Terrace SW No No Yes Yes Yes Yes Golden Gate Fire Control and Rescue District Station 70 4741 Golden Gate Parkway No No Yes Yes Yes Yes Golden Gate Fire Control and Rescue District Station 71 100 13th Street Southwest No No Yes Yes Yes Yes Golden Gate Fire Control and Rescue District Station 72 3820 Beck Boulevard No No Yes Yes Yes Yes Golden Gate Fire Control and Rescue District Station 73 14575 Collier Boulevard No No Yes Yes Yes Yes Golden Gate WWTP No No Yes Yes Yes Yes Golden Terrace North 2711 44th Terrace SW No No Yes Yes Yes Yes Golden Terrace South 2965 44th Terrace SW No No Yes Yes Yes Yes Goodland Isles Estates No No Yes Yes Yes Yes Gulf Coast 7878 Shark Way No No Yes Yes Yes Yes Handy Food Store#91 No No No Yes Yes Yes Harbor Memory Care of North Collier 101 Cypress Way East No No Yes Yes Yes Yes Harborchase of Naples 7801 Airport Pulling Road N No No Yes Yes Yes Yes Harborchase of Naples 7801 Airport Pulling Road N No No No No Yes Yes Page 189 Collier County,Florida Floodplain Management Plan amec a March 2015 foster wheeler Co Ter Count I 6 , , 1 7 ! , ,,It ' V Y. ,..,.., Facility Address CAT CAT CAT CAT CAT CAT T 1 2 3 4 5 Hazels Mansion Incorporated 2861 Golden Gate Boulevard E No No Yes Yes Yes Yes Highlands 1101 Lake Trafford Road No No Yes Yes Yes Yes Hodges University-Naples Campus 2655 Northbrooke Drive No No Yes Yes Yes Yes I-75 Big Cypress Rest Stop No No Yes Yes Yes Yes Immokalee 701 Immokalee Drive No No Yes Yes Yes Yes Immokalee Community 123 N 4th Street No No No Yes Yes Yes Immokalee Fire Control District Sta 30 502 New Market Road East No No Yes Yes Yes Yes Immokalee Fire Control District Sta 31 1107 Carson Road No No Yes Yes Yes Yes Immokalee Fire Control District Sta 32 4817 Ave Maria Boulevard No No Yes Yes Yes Yes Immokalee SLF Eustis Ave Extension No No Yes Yes Yes Yes Immokalee SLF and Transfer Station 700 Stockade Rd @ CR846 No No Yes Yes Yes Yes Immokalee Technical Center 508 N 9th Street No No No Yes Yes Yes Immokalee WWTF No No No Yes Yes Yes Isle of Capri Fire and Rescue Sta50 175 Capri Boulevard No No No Yes Yes Yes Juniper Village at Naples 1155 Encore Way No No No Yes Yes Yes Kiva at Canterbury Limited Liability Company 10 7th Street No No Yes Yes Yes Yes Krehling Industries-Plant 6 No No No Yes Yes Yes Lake Trafford 3500 Lake Trafford Road No No No Yes Yes Yes Laurel Oak 7800 Immokalee Road Yes Yes Yes Yes Yes Yes LCEC-Ave Maria South 6095 Camp Keais Rd Yes Yes Yes Yes Yes Yes LCEC-Belle Meade 5735 Collier Blvd No No Yes Yes Yes Yes LCEC-Carnestown 32096 Tamiami Trl E No No Yes Yes Yes Yes LCEC-Immokalee 1299 S 1"St No No No Yes Yes Yes Lely 8125 Lely Cultural Parkway No No No Yes Yes Yes Lely 1 Lely High School Boulevard No No No Yes Yes Yes Lely Palms Retirement Community 1000 Lely Palms Drive No No No No Yes Yes Lorenzo Walker Institute 3702 Estey Avenue No No Yes Yes Yes Yes Manatee 1880 Manatee Road No No No Yes Yes Yes Manatee 1920 Manatee Road No Yes Yes Yes Yes Yes Manorcare Nursing and Rehabilitation Center 3601 Lakewood Boulevard No No No Yes Yes Yes Marco Island,City of-RO Plant No No No Yes Yes Yes Marco Shores Utilities No No Yes Yes Yes Yes Merrill Gardens at Naples 1710 Southwest Health Pkwy No No No Yes Yes Yes Mike Davis 3215 Magnolia Pond Drive No No Yes Yes Yes Yes Naples Park 685 111th Avenue N Yes Yes Yes Yes Yes Yes_ Naples Sanitary Landfill 3750 White Lake Blvd. No No Yes Yes Yes Yes North Collier Hospital 11190 Health Park Boulevard No No No Yes Yes Yes North Naples 16165 Learning Lane No No No Yes Yes Yes North Naples Fire Control and Rescue District Station 40 1441 Pine Ridge Road No No Yes Yes Yes Yes North Naples Fire Control and Recue District Station 42 7010 Immokalee Road No No Yes Yes Yes Yes North Naples Fire Control and Rescue District Station 43 16325 Vanderbilt Drive Yes Yes Yes Yes Yes Yes North Naples Fire Control and Rescue District Station 45 1885 Veterans Park Drive No Yes Yes Yes Yes Yes Page 190 Collier County,Florida Floodplain Management Plan amec ► March 2015 foster wheeler 2yunt Facility Address CAT CAT CAT CAT CAT CAT T 1 2 3 4 5 North Naples Fire Control and Rescue District Station 46 3410 Pine Ridge Road No No Yes Yes Yes Yes North Naples Fire Control District Station 44 8970 Hammock Oak Drive No No No Yes Yes Yes Oakridge 14975 Collier Boulevard No No No Yes Yes Yes Ochopee Fire Rescue Station 66 40808 East Tamiami Trail No No No Yes Yes Yes Orange Tree WWTP No No No No Yes Yes Osceola 5770 Osceola Trail No No No No No Yes Palmetto Ridge 1655 County Road 858 No No No Yes Yes Yes Pelican Bay Sewage Treat Plant 6652 Watergate Way No Yes Yes Yes Yes Yes Pelican Marsh 9480 Airport Pulling Road N No No No Yes Yes Yes__ Physicians Regional Medical Center 8300 Collier Boulevard No No No Yes Yes Yes Poinciana 2825 Airport Pulling Road S Yes Yes Yes Yes Yes Yes Port Of The Islands WWTP 12600 Union Rd No No Yes Yes Yes Yes Sabal Palm 4095 18th Avenue NE No No Yes Yes Yes Yes Shadowlawn 2161 Shadowlawn Drive No No No Yes Yes Yes Shell Oil Company No No Yes Yes Yes Yes Sheriffs Office-Training 3702 Estey Ave No No No No Yes Yes Sheriffs Office-Special Operations 3123 Terrace Ave Yes Yes Yes Yes Yes Yes Sunniland Mine-Florida Rock Yes Yes Yes Yes Yes Yes The Aristocrat 10949 Parnu Street No No Yes Yes Yes Yes The Aristocrat 10949 Parnu Street No No Yes Yes Yes Yes Aston Gardens at Pelican Marsh LLC 4750 Aston Gardens Way No No Yes Yes Yes Yes The Carlisle Naples 6945 Carlisle Court No No No Yes Yes Yes The Cove at the Marbella 7425 Pelican Bay Blvd. No No No Yes Yes Yes US Post Office-CPU Veronawalk 8090 Sorrento Ln No No No No No Yes US Post Office-East Naples Carrier Annex 3573 Progress Ave No No Yes Yes Yes Yes US Post Office-Golden Gate 11665 Collier Blvd No No Yes Yes Yes Yes US Post Office-Golden Gate Carrier Annex 4080 15th Ave SW No No No Yes Yes Yes US Post Office-Goodland 427 Papaya St No No Yes Yes Yes Yes US Post Office-Naples 1200 Goodlette Rd N No No No Yes Yes Yes US Post Office-Ochopee 38000 Tamiami Trl E No No Yes Yes Yes Yes US Post Office-Vanderbilt Beach 851 Vanderbilt Beach Rd No No No Yes Yes Yes US Post Office-Immokalee 810 N 15th St No No Yes Yes Yes Yes Vanderbilt Beach Assisted Living Home 517 100th Avenue N. No No Yes Yes Yes Yes 15960 Veterans Memorial Veterans Memorial Boulevard Yes Yes Yes Yes Yes Yes Village Oaks 1601 State Road 29 No No No Yes Yes Yes Vineyards 6225 Arbor Boulevard W No No No Yes Yes Yes Walker Institute of Technology 3702 Estey Avenue No No No Yes Yes Yes Windsor Place 2626 Goodlette Road North Yes Yes Yes Yes Yes Yes Source: Collier County 2014 Tax Assessor's Data,NOAA,FDEM Page 191 Collier County,Florida Floodplain Management Plan amec 4 March 2015 foster wheeler Cor County 16 /417 1 ....,--..._-„, Table 4-58-Critical Facilities at Risk by Storm Surge Category-City of Everglades City Facility Address CAT CAT CAT CAT CAT CAT T 1 2 3 4 5 City of Everglades City hall 102 SW Copeland St No No Yes Yes Yes Yes Collier County Court-Everglades City Hall 102 Copeland Ave N Yes Yes Yes Yes Yes Yes Collier County Tax Collector 102 Broadway Ave E Yes Yes Yes Yes Yes Yes Everglades City 415 School Drive Yes Yes Yes Yes Yes Yes Everglades City,City of-WWTF 401 Copeland Ave S Yes Yes Yes Yes Yes Yes LCEC-EGC 603 Begonia St Yes Yes Yes Yes Yes Yes Ochopee Fire Rescue Station 60 201 Buckner Avenue North Yes Yes Yes Yes Yes Yes US Post Office-Everglades City 601 Collier Ave Yes Yes Yes Yes Yes Yes Source: Collier County 2014 Tax Assessor's Data,NOAA,FDEM Table 4-59-Critical Facilities at Risk by Storm Surge Category-City of Marco Island Facility Address CAT CAT CAT CAT CAT CAT T 1 2 3 4 5 City of Marco Island City Hall 50 Bald Eagle Dr No No Yes Yes Yes Yes City of Marco Island Fire Rescue Department Station 50 1280 San Marco Road No No Yes Yes Yes Yes City of Marco Island Fire Rescue Department Station 51 751 East Elkcam Circle No Yes Yes Yes Yes Yes Collier County Sheriffs Department 990 N Barfield Dr No Yes Yes Yes Yes Yes Collier County Tax Collector 1040 Winterberry Dr No No Yes Yes Yes Yes LCEC-Fred H. Smith 1340 Lily Ct No No Yes Yes Yes Yes LCEC-Marco 965 N Barfield Dr No Yes Yes Yes Yes Yes Marco Island Charter 1401 Trinidad Street No No Yes Yes Yes Yes Marco Island Academy 2255 San Marco Road Yes Yes Yes Yes Yes Yes Marco Island WWTF&Reclaimed Water Service Area No Yes Yes Yes Yes Yes Tommie Barfield 101 Kirkwood Street No No Yes Yes Yes Yes US Post Office-CPU Sunshine Booksellers 677 S Collier Blvd No Yes Yes Yes Yes Yes US Post Office-Marco Island 600 E Elkcam Circle No Yes Yes Yes Yes Yes Source: Collier County 2014 Tax Assessor's Data,NOAA,FDEM Page 192 Collier County,Florida Floodplain Management Plan amec j March 2015 foster wheeler 16A17 Co ier County Table 4-60-Critical Facilities at Risk by Storm Surge Category-City of Naples Facility Address CAT CAT CAT CAT CAT CAT T 1 2 3 4 5 North Naples Fire Control and Rescue District Station 47 2795 North Airport Road No No Yes Yes Yes Yes East Naples Fire Control and Rescue District Station 24 2795 North Airport Road No No Yes Yes Yes Yes Collier County Emergency Medical Services and Fire 2705 South Horseshoe Drive No No Yes Yes Yes Yes City of Naples Fire Department Sta 3 300 Citation Point No No Yes Yes Yes Yes Collier County Tax Collector 2800 Horseshoe Dr N No No No Yes Yes Yes Orchid Terrace 111 Moorings Park Drive No No Yes Yes Yes Yes Lakeside Pavilion Care and Rehabilitation Center 2900 12th Street North No No Yes Yes Yes Yes City of Naples Fire Department Sta 2 977 26th Avenue North No No Yes Yes Yes Yes Gulfview 255 6th Street S No No Yes Yes Yes Yes Heritage Healthcare and Rehabilitation Center 777 9th Street North No No Yes Yes Yes Yes Lake Park 1295 14th Avenue N No No Yes Yes Yes Yes Naples 1100 Golden Eagle Circle Yes Yes Yes Yes Yes Yes Sea Gate 650 Seagate Drive Yes Yes Yes Yes Yes Yes Sheriffs Office-Crime Prevention 2373 North Horseshoe Drive No Yes Yes Yes Yes Yes The Chateau at Moorings Park 130 Moorings Park Drive No No Yes Yes Yes Yes Naples Community Hospital 350 7th Street North Yes Yes Yes Yes Yes Yes Naples Police Department 355 Riverside Circle No No Yes Yes Yes Yes Naples,City of-WWTP I No No Yes Yes Yes Yes City of Naples Fire Department Stal 835 8th Avenue South No No Yes Yes Yes Yes US Post Office-Downtown Naples 860 6th Ave S Yes Yes Yes Yes Yes Yes FPL-Naples 1220 5th Ave N No No Yes Yes Yes Yes City of Naples City Hall 735 8th St S No No No Yes Yes Yes Collier County Tax Collector 735 8th St S No Yes Yes Yes Yes Yes Homewood Residence at Naples 770 Goodlette Road,North No Yes Yes Yes Yes Yes Source: Collier County 2014 Tax Assessor's Data,NOAA,FDEM Page 193 Collier County,Florida Li Floodplain Management Plan amec March 2015 foster wheeler Co -rer County 16A17 Population at Risk A hurricane surge analysis was conducted by intersecting the improved parcel layer provided by Collier County with the polygon shapefile for each hurricane surge layer. In evaluating populations at risk, only those people residing in the hurricane storm surge zones are included. Thus, those improved residential parcels intersecting the hurricane surge zones were counted and multiplied by the Census Bureau household factor for each community as shown in Table 4-61. Table 4-61-Population at Risk to Storm Surge Census Bureau Residential Household Population at Surge Category Property Count Factor Risk Tropical Storm Collier County Unincorporated Areas 5,328 2.64 14,066 City of Everglades City 373 2.64* 985 City of Marco Island 271 2.14 580 City of Naples 759 1.99 1,510 Category 1 Collier County Unincorporated Areas 15,100 2.64 39,864 City of Everglades City 374 2.64* 987 City of Marco Island 4,195 2.14 8,977 City of Naples 2,181 1.99 4,340 Category 2 Collier County Unincorporated Areas 37,037 2.64 97,778 City of Everglades City 374 2.64* 987 City of Marco Island 6,547 2.14 14,011 City of Naples 5,547 1.99 11,039 Category 3 Collier County Unincorporated Areas 46,624 2.64 123,087 City of Everglades City 374 2.64* 987 City of Marco Island 6,559 2.14 14,036 City of Naples 5,603 1.99 11,150 Category 4 Collier County Unincorporated Areas 47,896 2.64 126,445 City of Everglades City 374 2.64* 987 City of Marco Island 6,559 2.14 14,036 City of Naples 5,603 1.99 11,150 Category 5 Collier County Unincorporated Areas 48,183 2.64 127,203 City of Everglades City 374 2.64* 987 City of Marco Island 6,559 2.14 14,036 City of Naples 5,603 1.99 11,150 Total 650,381 Source: Collier County 2014 Tax Assessor's Data,FEMA 2012 DFIRM,U.S.Census Bureau(2008-2012) *A separate household factor was not available for Everglades City. The Collier County household factor was used instead. Evacuation Zones Figure 4-58 depicts hurricane evacuation zones for Collier County. This figure utilizes a polygon set based on regional surge zones from a 2007-2010 statewide evacuation study initiated by FDEM. It should be noted that the local Collier County Emergency Management Department does not have static, named evacuation zones. Areas needing to be evacuated are defined and described at the time of a threatening event, and those living within the shaded evacuation zones shown below in Figure 4-58 should listen to local emergency officials and have a plan to evacuate when directed to do so. Page 194 Collier County,Florida Floodplain Management Plan amec March 2015 foster wheeler 16A17 in O\ j t, ,_1 ual =Q 4 g a g ,2 a t ` Pis v o 6 'S n A m U U W E C7 f 0S N r., . I> gill i N N N N y a v o 2 .g A € w ww w = Y E f 3Q m U ❑ 1C) Z 11111Y I 1 L:7679 a ca a) cocii �U W Y B _ 0 ,, —. %U L a f w i.{c •0 ' 180 J 41 w 3 0 4 o U „� o o0 O t> �t`';' In 0 % • El Fs. c, a3iS l.: hy Ail w�•• y1 A r' N l0 EM er, °1E a c a tee ,. a �r aa �; a U �Q c �, o �u° 9. N a 0) D• a U a a IQ O V Co ler County 16A17 6 4.4 Capability Assessment Table 4-62 lists regulatory mitigation capabilities, including planning and land management tools, typically used by local jurisdictions to implement hazard mitigation activities and indicates those that are in place in Collier County, the City of Marco Island and the City of Naples. Excerpts from applicable policies, regulations, and plans and program descriptions follow to provide more detail on existing mitigation capabilities. Table 4-62-Regulatory Mitigation Capabilities Regulatory Tool(ordinances,codes, Date* plans) Y/N C N M Comments Comprehensive Plan Y 2014 2013 2009 Zoning Ordinance Y 2014 2014 2013 Subdivision Ordinance Y 2014 2014 2014 Floodplain Ordinance Y 2013 2012 2012 Stormwater Ordinance 2013 2007 n/a Building Code Y 2010 2010 FBC effective on 3/15/12 Collier County:4/3 BCEGS Rating Y 2013 2013 Marco Island:4/4 Naples: 3/3 Addressed in the Co. with the NPDES Construction General Erosion or Sediment Control Program Y 2009 2014 n/a Permit(CGP)requirements;Naples requires a Construction Site Management Plan NPDES Permit#FLRO4E037(Co.) Stormwater Management Program Y 2013 2007 n/a NPDES Permit#FLRO4E080 (Naples) Site Plan Review Requirements Y Capital Improvement Plan Y 2013 2013 2011 Economic Development Plan 2013 n/a n/a Economic Element of Comprehensive Plan Local Emergency Operations Plan Y 2012 2012 2013 Flood Insurance Study or Other Engineering y 2012 Study for Streams Repetitive Loss Plan N Elevation Certificates Y Key: C—Collier County;N—Naples;M—Marco Island *Most recent version(includes latest amendments) Comprehensive Plans Florida's Growth Management Act requires the state's counties and municipalities to adopt Comprehensive Plans that guide future growth and development. A Comprehensive Plan establishes goals,policies and objectives for the implementation of the plan. Collier County Growth Management Plan(1997,most recently amended in 2014) Goals, objectives and/or policies in the Plan include: Stormwater Management Sub-Element Page 196 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler Co ler County • Prepare Watershed Management Plans, which contain appropriate mechanisms to protect the County's estuarine and wetland systems. • Provide stormwater management facilities and services for drainage and flood protection for existing and future development, minimize the degradation of quality of receiving waters and surrounding natural areas, and protect the functions of natural groundwater aquifer recharge areas. • Verify the design storm capacity of the drainage facilities within each basin, and determine the costs necessary to maintain the facility capacities to selected design storm standards. This information shall be used to program operational funds in the Annual County Budget and to identify necessary capital projects and basin studies in the Annual Capital Improvement Element Update and Amendment. • Maintain adopted drainage level of service standards for basins and sub-basins. • Regulate land use and development in a manner that protects the functions of natural drainage features,the stormwater management network and natural groundwater aquifer recharge areas. Conservation and Coastal Management Element • Floodplain storage compensation shall be evaluated for developments within the designated Flood Hazard Area (flood zones starting with the letter "V" or "A") as depicted on the Flood Insurance Rate Maps published by the Federal Emergency Management Agency with an effective date of May 16, 2012. Floodplain storage compensation shall also be evaluated for areas known to be periodically inundated by intense rainfall or sheet flow conditions. • All new development and re-development projects shall ensure surrounding properties will not be adversely impacted from the project's influence on stormwater sheet flow. • Within the Urban Designation and the Rural Fringe Mixed Use District, required wetland preservation areas, buffer areas, and mitigation areas shall be dedicated as conservation and common areas in the form of conservation easements and shall be identified or platted as separate tracts; land uses shall not include any activities that are detrimental to drainage, flood control, water conservation,erosion control or fish and wildlife habitat conservation and preservation. • On-site shelters within mobile home parks or mobile home subdivisions shall be elevated to a minimum height equal to or above the worst case Category 3 hurricane flooding level,based upon the current National Oceanic and Atmospheric Administration's storm surge model, known as Sea,Lake,and Overland Surges from Hurricanes(SLOSH). • All new Public Safety facilities in Collier County will be flood-resistant and designed to meet 155 mph wind load requirements and shall have provisions for back-up generator power. • Ensure that publicly funded buildings and publicly funded development activities are carried out in a manner that demonstrates best practice to minimize the loss of life,property, and re-building cost from the effects from hurricanes, flooding, natural and technological disaster events. Best practice efforts may include,but are not limited to construction above the flood plain. • The County shall participate in the National Flood Insurance Program(NFIP). • The County shall consider the Coastal High Hazard Area as a geographical area lying below the elevation of the Category 1 storm surge line as presently defined in the 2011 Southwest Florida Regional Planning Council's Hurricane Evacuation Study, or subsequently authorized storm surge or evacuation planning studies coordinated by the Collier County Emergency Management Department and approved by the Board of County Commissioners. • The County shall require that all new sanitary sewer facilities in the coastal high hazard area be flood proofed,be designed to reduce leakage of raw sewage during flood events to the maximum extent practicable and,new septic tanks shall be fitted with back-flow preventers. Page 197 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler Co ier Count 16A17 y ...........„...„„.„,%_____ • The County shall continue to assess all undeveloped property within the coastal high hazard area and make recommendations on appropriate land use. • Within the Coastal High Hazard Area maximum permissible residential density is limited in recognition of the level of risk, the existing deficiency of evacuation shelter space and existing patterns of density. • To encourage residential in-fill in urban areas of existing development outside of the Coastal High Hazard Area, a maximum of 3 residential dwelling units per gross acre may be added if (certain)criteria are met. Future Land Use Element • Drainage and stormwater management practices shall be governed by the South Florida Water Management District Surface Water Management regulations. City of Naples Comprehensive Plan(amended in 2013) Goals,objectives and/or policies in the Plan include: Conservation and Coastal Management Element • Conservation Areas: The areas designated as environmentally sensitive lands are delineated on the Future Land Use Map (including tidal swamp and marsh areas, which slow the surge of flood waters and reduce inland flooding). Before development can be approved, an environmental assessment must be prepared which details the specific habitats and communities present on the property and takes into account site topography and hydrology. • Coordinate the Conservation and Coastal Management Element with the Future Land Use Element. • Limit public expenditure that encourages or subsidizes private development in the coastal high hazard area to the provision of services per density levels as determined by the Future Land Use Map,Policy 1-1 and as further limited by the Code of Ordinances. • Direct new population growth away from known or predicted coastal high hazard areas except for residential development in compliance with the Future Land Use Map and as may be further limited by the Code of Ordinances. • The Coastal High Hazard Area is the area below the elevation of the Category 1 Storm Surge line as established by a Sea, Lake and Overland Surges from Hurricanes (SLOSH) computerized storm surge model. This area includes much of the City of Naples, including most of its public infrastructure. • Enforce development regulations found in the Code of Ordinances pertaining to the coastal building zone,the Coastal Construction Setback Line,and the flood insurance program. • Continue to participate in the National Flood Insurance Program(NFIP). Future Land Use Element • Utilize a combination of existing wetlands, created wetlands, and other stormwater management technology, as appropriate, to manage stormwater runoff consistent with South Florida Water Management District regulations. • Enforce existing development standards for stormwater management. Public Facilities and Water Resources Element • The level of service standard for surface water management for all development, redevelopment and the primary drainage system requires no flooding during a 5 year, one hour storm event for Page 198 Collier County,Florida Floodplain Management Plan March 2015 amec IW foster wheeler gunt 16A17 roads, yard drainage, pump stations and trunk lines and requires no flooding during a 100 year storm event for building finished floors elevations. Public Facilities and Water Resources Element • Pursue intergovernmental cooperation with Collier County,the South Florida Water Management District, and the Big Cypress Basin to implement projects and programs that mitigate flooding and improve water quality. • Develop and maintain public information program to inform the citizens of, and encourage support for, a stormwater quality program with emphasis on stormwater retention in swales and lakes. • Continue to implement a City-wide swale restoration program, including inspection and maintenance of the design capacity within the right-of-way and landscaped easements. • Include in individual land development plans stormwater runoff systems that are compatible with basin wide master drainage plans. City of Marco Island Comprehensive Plan(2009) Goals,objectives and/or policies in the Plan include: Stormwater Management Sub-Element • The City of Marco Island will operate and maintain a stormwater management system that will meet or exceed adopted Levels of Service(LOS)design standards over the next five years. • With respect to proposed developments, post-development stormwater runoff shall, at a minimum,not exceed pre-development conditions. • Existing stormwater management systems, public or private, that are proposed for expansion and/or reconstruction shall,to the greatest degree practical, meet current stormwater management regulations for quantity discharges. • The City will implement a proactive maintenance program to ensure that all current and future stormwater management facilities operate at designed capacity. • The City will conduct annual inspections of stormwater facilities consistent with requirements and obligations in the City's Community Rating System(CRS)Plan. Capital Improvements Element • The LOS design standard for new stormwater management facilities will be the 10 year,one hour storm event,with a 3.3 inches/hour intensity duration. Conservation and Coastal Management Element • The City shall maintain and enforce building codes at least as stringent as required by Florida law to limit the potential damage of structures from hurricanes and tropical storms. These codes shall include building elevation requirements that conform to federal laws and Flood Insurance Rate Maps. • The City will utilize a post-disaster redevelopment plan and associated build-back policies to reduce or eliminate the exposure of human life, and public and private property to catastrophic disasters. Future Land Use Element • Proposed changes to the Future land Use Map will be thoroughly reviewed for compatibility and coordination with underlying topographic, soil, flooding probability, and existing infrastructure Page 199 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler Cofer County 16417 services to ensure the development envisioned in the proposed change can be accommodated without adverse impacts or severe limitations due to topographic, soil, or infrastructure services. • All new development shall be required to comply with minimum base flood elevations as established on the applicable FEMA Flood Insurance Rate Map (FIRM > or not less than 10.0 NGVD as mandated by the City of Marco Island to ensure projects approved and permitted will not be adversely impacted by flooding. Remodeling of existing structures may occur at existing structure elevations in which case minimum FEMA elevations shall apply. • Any future subdivision of land which results in a net increase of lots shall be reviewed to ensure that the desired density conforms to prescribed limitations contained on the Future Land Use Map.Further, any proposed subdivision not currently abutting a public street shall be evaluated to prevent periodic and seasonal flooding. • The maximum density of future residential development is limited to a maximum density of four units per acre in recognition of natural hazards and existing population concentrations. Stormwater Management Plans Collier County Watershed Management Plan(2011) The Collier County Watershed Management Plan (CCWMP) was prepared to address protection of the County's estuarine and wetland systems. Applicable elements of the County's Growth Management Plan addressed by the CCWMP include Conservation and Coastal Management Drainage. Goals of the CCWMP are to help meet levels of service for flood protection, as well as sustainability of future water supplies for the citizens of Collier County. The CCWMP recommended the following non-structural (policy)initiatives: • Low Impact Development(LID)Program • Stormwater Retrofit Program • Fee-Based Stormwater Utility Incentive Program • Allowable Maximum Site Discharges • Stormwater Runoff Volume Control • Verification of No Floodplain Impact • Flood Protection Levels of Service(FPLOS)Criteria • Golden Gate Estates Transfer of Development Rights Program • Golden Gate Estates Watershed Mitigation Program • Improved Operations of Water Control Structures • Water Quality Monitoring Program • Additional Watershed Protection Programs • Stormwater Facilities Maintenance and Certification Collier County Growth Management Plan Stormwater Management Sub-Element(updated 2013) The Stormwater Management Sub-Element of the County's Growth Management Plan inventories both the natural conditions and stormwater management activities within the County. According to the Sub- Element, there are two primary service providers with regard to the provision of stormwater management services in the County. The County's Transportation Services Division maintains drainage systems associated with County and State Roadways as well as the Secondary Drainage System. The Big Cypress Basin Board, an arm of the South Florida Water Management District (SFWMD), maintains the larger, regional surface water management systems within Collier County. The regional drainage system is also Page 200 Collier County,Florida Floodplain Management Plan March 2015 amec 4W :- foster wheeler County 16A17 Co rer Co y referred to as the Primary Drainage System. The Sub-Element is concerned with flood prevention (a quantity issues) and the removal of various pollutants in surface stormwater(a quality issue) and contains a set of comprehensive strategies for dealing with both stormwater quantity and quality issues. City of Marco Island Comprehensive Plan Stormwater Management Sub-Element(2008) The purpose of the City of Marco Island Comprehensive Plan Stormwater Management Sub-Element is to provide for the necessary stormwater management facilities and services which will serve City residents, businesses and visitors at or above the adopted level-of-service standard. The Plan addresses design capacity including a rainfall event standard,design methodologies,and level-of-service standards. City of Naples Stormwater Master Plan(2007) Naples has a stand-alone Stormwater Master Plan that was updated in 2007. The purpose of the plan is to compile existing stormwater data,alternative analyses,cost,and recommendations into a master plan with focus on improving flood control, improving pollution control, and improving Naples Bay on a regional level. The plan's recommendations include several actions intended to address both water quality and quantity,including the following: • Create a stormwater management definition section in the City's Code. • Create specific Stormwater Management Codes and thresholds to address to the City of Naples specific concerns and needs. • Establish a maximum impervious area by percentage for each residential land use to guarantee that some reasonable area will be set aside for trees,grasses and landscaping to filer and percolate stormwater runoff prior to discharge to receiving waters. Emergency Management Plans The Collier County Comprehensive Emergency Management Plan (CEMP) was prepared in 2012 and also adopted by the Cities of Marco Island and Naples. The plan is designed to provide a framework through which the County may prevent or mitigate the impacts of, prepare for, respond to, and recover from natural, manmade, and technological hazards. The plan includes flood/surge impact scenarios and establishes a Flood Warning Program, which: • Describes the various types of flooding that could occur and provides procedures for disseminating warning information and for determining, assessing and reporting the severity and magnitude of flooded areas, • Establishes the concepts under which the county government will maintain a 24/7 flood warning program,and • Creates a framework for expeditious,effective and coordinated employment of local resources. Marco Island also prepared a complementary CEMP in 2013. The plan includes a Flood Recovery Standard Operating Procedure(SOP). The purpose of the SOP is to ensure that timely and pertinent flood preparedness, recovery and mitigation information is available to the public before, during and after a flooding event in support of the National Flood Insurance Program (NFIP) and the requirements of the community. Page 201 Collier County,Florida Floodplain Management Plan March 2015 amec 4 foster wheeler Co ier County Collier County Local Mitigation Strategy(2010; 2015 update underway) The purpose of the Collier County Local Mitigation Strategy is to develop a unified approach among county and municipal governments, with input from the private sector, for dealing with identified hazard and hazard management problems in the Collier County area. The document addresses following hazards: tropical cyclones and coastal storms, severe storms and tornados, flooding and wildfires. All jurisdictions in the County adopted the 2010 plan,which is currently being updated. City of Marco Post-Disaster Recovery Plan (2001) In accordance with the City of Marco Island Comprehensive Plan recommendations, the City adopted a Post-Disaster Recovery Plan with associated build-back requirements. Structures damaged by disaster by more than 50 percent of the replacement value at the time of disaster can be rebuilt to their original square footage and density, provided they comply with several requirements, including federal requirements for elevation above the 100-year flood level and the City's building Code requirements for flood-proofing. Repetitive Loss Data to Support Sections 501-503 in the CRS (2013) Collier County is classified as a Repetitive Loss Category "C" community. To comply with the requirements in Sections 501 through 503 of the CRS Program,the county provided a detailed analysis of the causes of repetitive flooding including background data on flood insurance and historical flood issues in the general area. All of this information is contained in a comprehensive repetitive loss report. The repetitive loss data contained within this report was used in the development of this FMP and is also required as an annual reporting tool for the CRS Recertification. Flood Damage Prevention Ordinance A floodplain ordinance is perhaps a community's most important flood mitigation tool. Collier County and the Cities of Marco Island and Naples updated their ordinances after a new Flood Insurance Rate Map (FIRM)became effective in 2012. The new map is based on updated topographical and hydrological data and now identifies the risk from coastal storm surge flooding as well as rainfall from the coastline to roughly State Route 29. Many areas of the county that had been exempt under previous flood zone mapping (D-Zones) are now included, such as the Golden Gate Estates area up to Immokalee in the northern portion of the County; this area is now largely shown as the AH-Zone. There were also changes in X-Zones, which cover much of the urban area of the County. Base Flood Elevations (BFEs) range from 8.5 feet along the coast to 37.5 feet further inland. Collier County's current Flood Damage Prevention Ordinance was adopted in 2011 and amended in 2013. The objectives of the ordinance are to: • Protect human life,health and to eliminate or minimize property damage; • Minimize expenditure of public money for costly flood control projects; • Minimize the need for rescue and relief efforts associated with flooding and generally undertaken at the expense of the general public; • Minimize prolonged business interruptions; • Minimize damage to public facilities and public utilities such as water and gas mains,electric, telephone and sewer lines,roadways, and bridges and culverts located in floodplains; Page 202 Collier County,Florida Floodplain Management Plan March 2015 amec 1 foster wheeler I 6 A 17 Coiner County • Maintain a stable tax base by providing for the sound use and development of flood-prone areas in such a manner as to minimize flood blight areas; and • Ensure that potential homebuyers are notified that property is in a special flood hazard area. Zoning and Subdivision Regulations Collier County Land Development Code In addition to the Flood Damage Prevention Ordinance, the Land Development Code contains land use and development standards that address flooding and are summarized below in the following representative examples. • Coastal Zone Management Regulations —Intended to manage and conserve the habitats, species, natural shoreline, and dune systems in the County's coastal zone through the identification, protection, conservation, and appropriate use of native vegetative communities and wildlife habitats. • Interim Watershed Management Regulations—New development and redevelopment are required to meet specific water quality volumetric requirements and limiting offsite discharge rates. Includes floodplain storage compensation provisions. (Updated requirements are recommended in the 2012 Watershed Management Plan.) • Site Design Requirements that address environmental protection and flood protection / control for: o Waterfront lots o Shorelines o Hurricane shelters in mobile home lots o Big Cypress Area of Critical State Concern Special Treatment Overlay(ACSC-ST)District Naples Land Development Code • "C" Conservation and "TC" Transitional Conservation Zoning Districts — The principal consideration concerning uses within the conservation zoning district is the preservation of the natural functions and benefits of these areas while allowing natural uses and low intensity development which follows the guidelines outlined for each subcategory in this division. The categories are as follows: Future Land Use Vital Limited Development Classification: Zoning: Conservation Transitional Conservation Includes: Marine grass beds Marginal land Tidal swamp/marsh areas High-hazard areas* Freshwater swamp/marsh Passive recreation/open space areas areas Class II waters Class III waters Gulf beaches/dunes High-hazard areas* *Defined as "Areas seaward of the most restrictive of the following: State of Florida Coastal Construction Control Line or Federal Emergency Management Agency designated Velocity zones (FEMA V zones),and erosion-prone bay frontage." Page 203 Collier County,Florida Floodplain Management Plan ' March 2015 gallP amec foster wheeler Cotter County 17 • Coastal Construction Code — Addresses design and construction of buildings and structures within the coastal building zone (land area from the seasonal high-water line to a line 1,500 feet landward from the state-established coastal construction control line)and coastal barrier islands. • Flood Damage Prevention Standards for Subdivision Proposals — Requires all subdivision proposals and other proposed development (including manufactured homes) to meet the following standards: o All subdivision proposals shall be consistent with the need to minimize flood damage; o All subdivision proposals shall locate and construct public utilities and facilities such as sewer, gas,electrical, and water systems to minimize or eliminate flood damage; o All subdivision proposals shall provide adequate drainage to reduce exposure to flood hazards; o The special flood hazard area shall be delineated and the base flood elevations shown on tentative and final subdivision plats. Marco Island Land Development Code • Vegetation Removal and Protection — Standards to protect existing vegetation within the city by regulating its removal; to assist in the control of flooding, soil erosion, dust, heat, air pollution and noise. • Transfer of Development Rights — To protect lands of environmental sensitivity, such as wetlands, an owner of land located within areas designated with the Special Treatment (ST) overlay, may transfer some or all of the residential development rights from one parcel of land ("sending lands")to another parcel located in the urban designated area of unincorporated Collier County ("receiving lands"). Owners of eligible sending land seeking to transfer development rights shall adhere to Transfer of Development Rights (TDR) provisions contained in the Collier County Land Development Code. Flood Insurance Study(2012) A Flood Insurance Study (FIS) dated May 16, 2012 was prepared by FEMA for Collier County, Florida and Incorporated Areas which includes the City of Marco Island and the City of Naples. The FIS identifies areas within Collier County that are subject to flooding from the 100-year storm event. This information is used by Collier County and Incorporated Areas to implement floodplain regulations as part of participation in the NFIP and to promote sound land use and floodplain development within the community. The FIS was used in the development of this FMP to identify FEMA flood hazard areas and to calculate the associated flood depths for the 100-year storm event. The flood depths were then used to prepare the risk assessment for Collier County. Based on the flood depth, a depth damage factor was applied to each building based on its occupancy class in order to calculate an accurate damage assessment for each building located within the 100-year flood hazard area. 4.4.1 Administrative/Technical Mitigation Capabilities Table 4-63 identifies personnel responsible for activities related to mitigation and loss prevention in Collier County,the City of Marco Island and the City of Naples. Page 204 Collier County,Florida Floodplain Management Plan „, March 2015 amec foster wheeler Co rer County I 6 A i 7 ........-„,...._.......,„_..__,_ Table 4-63-Administrative/Technical Capabilities Responsible Department Resource Y/ Collier County City of Naples City of Marco Island Unincorporated Areas Planner/Engineer with knowledge Growth Management Planning Dept. Growth Management of land development/land Y Division-Planning and (Director&staff) Dept. management practices Zoning Dept.Staff (Director&staff) Engineer/Professional trained in Growth Management construction practices related to Y Division-Operations& Building Dept. Building Services buildings and/or infrastructure Regulatory Management Staff Natural Resources Planner/Engineer/Scientist with Growth Management Dept. Environmental Services an understanding of natural Y Division-Department of (Natural Resources (Environmental hazards Natural Resources Staff Specialist) Manager&staff) Information Technology- GIS Services; Growth Management Personnel skilled in GIS Y Planning Dept. Dept. Planning and Zoning Dept. (IT/GIS Manager) Growth Management Building Services Division-Operations& Building Dept. Full time building official Y Regulatory Management (Building Official) (Chief Building (Building Official) Official) Growth Management Growth Management Division—Development Building Dept. Dept. Floodplain Manager Y Review—Floodplain (Floodplain (Planner/Floodplain Management Section Coordinator) (Floodplain Coordinator) Coordinator) Bureau of Emergency Fire Rescue Dept. Emergency Manager Y Services-Emergency Fire Rescue Dept. (Emergency Management Dept. Management Coordinator) Grant writer Y Grants Coordinator Grants Coordinator Grants Coordinator Growth Management Growth Management GIS data—Hazard areas Y Division-Planning and Planning Dept. Dept.-GIS Services Zoning Dept. Growth Management Growth Management GIS data—Critical facilities Y Division—Operations Planning Dept. Dept.-GIS Services and Regulatory Mgmt Growth Management Growth Management GIS data—Land use Y Division-Operations and Planning Dept. Dept.-GIS Services Regulatory Mgmt Growth Management Growth Management GIS data—Building footprints Y Division-Operations and Planning Dept. Dept.-GIS Services Regulatory Mgmt GIS data—Links to Assessor's Growth Management Growth Management data Y Division-Operations and Planning Dept. Dept.-GIS Services Regulatory Mgmt Warning Systems/Services Y CodeRed Telephone Notification System,Radio&TV PSAs,Electronic Message Service,Lightning Detection System(Marco Island) Key: C—Collier County;N—Naples;M—Marco Island Page 205 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler 16A17 Co *er County 4.4.2 Fiscal Mitigation Capabilities Table 4-64 identifies financial tools or resources that the County could potentially use to help fund mitigation activities. Table 4-64-Fiscal Mitigation Capabilities Accessible/Eligible to Use(Y/N) Resource C N M Community Development Block Y Y Y Grants Capital improvements project Y Y Y funding Authority to levy taxes for specific Y Y Y purposes Fees for water,sewer,gas or electric Y Y Y services Impact fees for new development Y Y Y Incur debt through general obligation Y Y Y bonds Incur debt through special tax bonds Y Y Y Incur debt through private activity N/A N bonds Withhold spending in hazard prone N* N* N areas South Florida Water Management District Cooperative Funding Y Y Y Program Other Key:C=Collier County;N=Naples;M=Marco Island *Policy statements in local comprehensive plans including limiting public expenditures in coastal high hazard areas to those that support development that is consistent with the Future Land Use element 4.4.3 Mitigation Partnerships and Outreach Partnerships Local Collier County and the Cities of Naples and Marco Island have developed their own emergency management programs but work closely together. The Collier County Emergency Management Department works with the City of Marco Island, City of Naples, Everglades City, Collier County Sheriffs Office,Collier County Public Schools District, and the Collier County Mosquito Control District and the Independent Fire Districts in coordinating resources and personnel. To prepare for natural disasters such as flooding, the County and its municipalities participate in the Collier County Local Mitigation Strategy Working Group. The group is composed of members drawn from county and municipal governments as well as from interested citizens from around Collier County and formed under the Collier County Citizen Corps.The purpose of the Working Group is to identify new mitigation opportunities,techniques and,if necessary,reprioritize existing mitigation projects.This group meets at least annually and after every disaster event that causes significant damages to infrastructure. Page 206 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler 1 6 A 7 Crier County The following is a list of partners identified in the 2012 Collier County Comprehensive Emergency Management Plan (EMP) to help mitigate natural hazards through mutual aid agreements, memoranda of understanding, and other agreements: American Red Cross of Collier County Immokalee Technical School(1TECH) Career and Service Center of Immokalee Isles of Capri Fire District Catholic Charities of Collier County Living Word Family Church Collier County Private Schools Marco Island YMCA Collier County School Board Marco Presbyterian Church David Lawrence Center&EMS Mayflower Congregational Church Collier County Health Department Moorings Presbyterian Church East Naples Fire District Naples Civil Air Patrol Squadron FL023 Emmanuel Lutheran Church Naples United Church of Christ Farm Workers Village Ochopee Fire District FDEM Support Trailer Shepherd of the Glades Lutheran Church First Baptist Church of Naples The Salvation Army First Church of Christ Scientist United Way of Collier County Florida Alert Response Team Veterans of Foreign Wars Post 7721 Goodwill Industries of SW Florida Golden Gate Fire District Guadalupe Center Guadalupe Social Services Habitat for Humanity of Collier County Harry Chapin Food Bank Hodges University Immokalee Friendship House Immokalee Helping Our People in Emergencies(I HOPE) The EMP's Flood Warning Program section further describes the roles and responsibilities of County departments and partners, including the American Red Cross,the Salvation Army, the School Board, and the South Florida Water Management District's (SFWMD)Big Cypress Basin office. The Flood Warning Program requires the Big Cypress Basin to monitor and/or run the real-time hydrologic monitoring and modeling system and to report flooding threats and trends as they occur. The Big Cypress Basin includes all of Collier County and a portion of mainland Monroe County. It is responsible for operating and maintaining 162 miles of canals and 46 water control structures and providing capital improvements to enhance water supply and environmental and flood control capabilities. The basin is one of two taxing basins that forms the SFWMD, a regional governmental agency that oversees water resources in the southern half of the state and offers technical assistance and expertise to local,regional and state agencies on water resource issues and policies. The Basin's priorities for maximizing flood protection for the primary system include: • Maintaining preparedness for emergency storm operations • Efficiently operating and maintaining the Basin's primary canal and water control structure network Page 207 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler Co ler County 0 A 7 • Improving canal conveyance capacities while emphasizing water resource protection and beneficial alternative uses • Protecting existing canal right of way from encroachments and unauthorized uses • Retrofitting old inefficient water control structures; building new structures to meet current or future design conditions • Inventorying, prioritizing, and retrofitting coastal and other water control structures, while considering the potential effects of sea level rise • Cooperating with local governments to improve and maintain secondary and tertiary stormwater management systems State The County is a partner with the State of Florida Department of Emergency Management. The County utilizes the State's hurricane surge maps and hurricane evacuation zones to perform local risk assessments and to develop mitigation strategies. The County also partners with the State on grant funding opportunities. Federal The County is a partner with FEMA. The County utilizes FEMA's flood insurance study to perform local risk assessments and to enforce local floodplain management ordinances. The County also utilizes FEMA literature and brochures to promote flood risk awareness. Outreach Collier County provides information on a Co ler County variety of emergency management educational and awareness topics and training opportunities. In addition to the HOME YOUR GOVERNMENT RESIDENTS VISITORS topics shown in the image below, information is provided on the following: -t.nrF.rgancy Martagernant • Gas Stations with Generators 2014 Coaicr All Haia r 71.cSnot. • Hazards Lookup *4011 Ft oc0ures • Hazard Viewer Business&Disaster Recovery • Hurricane Seminar Schedule Info • In the News CEMR(2012) • Kids-Disaster Prep CERT-Community Emergency Response Team • Library(Reference) Current Emergency Information • Local Media Disaster Volunteer Teams • National Hurricane Centernr Phil tclha,�s Forecast EMERGENCY EMAIL NETWORK • Personal Disaster Plan,etc. Emergency Contacts • Pet Information .Emergency EMall Network The Emergency EMaI Network is a faEE!A hour seven • Private Nonprofits(PNPs) retransmissions of the National Weather Service's watche Evacuation • RainySeason Readiness via text•capable cellular n k.A.nes andor Pagers FEMA.Flood Map Ire° • Re-Entry After a Disaster Hurricane Al you rr `n«grttf complete "' y. FEMA Hurricane Info message to know that dangerous weer is et the area y • Response InformationFrREWISE ' ifm tteyEMaiorg • Shelter Information Ft ASH.Federal Alliarx:e For • SkyWarn Safe Homes • Special Needs&Sheltering Info Flood g information Page 208 Collier County,Florida Floodplain Management Plan March 2015s amec it foster wheeler Co ler County1 6 A 7 • Surge(SLOSH) • The Weather Channel • Training&Events • Tropics Information • Weather Alerts-Email&SMS • Weather Videos &Games • Why Evacuate? The City of Naples also promotes the use of CODEred on its website and provides flood-related information under the following topics: • Current Water&Weather Conditions • Flood Zone Maps • Flood Rules • Flood Insurance • Flood Programs • Flood Facts • Flood Safety • Flood Protection • Elevation Certificates • Drainage System Maintenance The SFWMD provides several informational materials on preparing for emergencies, .' Rainy Season Readiness including flooding. These materials are , provided on their website and can be utilized by any local government as well as the public. The City of Marco Island provides a link to SFWMD materials with a"Rainy Season Readiness" link on its FEMA Information webpage. Marco Island also provides a Hurricane Readiness webpage and provides storm related information to residents through the CODEred Alert system and email news alerts. Page 209 Collier County,Florida Floodplain Management Plan �, March 2015 amec foster wheeler Co ier County g t: This page intentionally left blank. Page 210 Collier County,Florida Floodplain Management Plan 4_4,i March 2015 amec foster wheeler o ier County C 16A17 5 MITIGATION STRATEGY 44 CFR Subsection D§201.6(c)(3): [The plan shall include] a mitigation strategy that provides the jurisdiction's blueprint for reducing the potential losses identified in the risk assessment, based on existing authorities, policies, programs and resources, and its ability to expand on and improve these existing tools. This section describes the mitigation strategy process and mitigation action plan for the Collier County Floodplain Management Plan. It describes how the County met the following requirements based on the 10-step planning process: • Planning Step 6: Set Goals • Planning Step 7: Review Possible Activities • Planning Step 8: Draft an Action Plan 5.1 Mitigation Strategy: Overview The results of the planning process, the risk assessment, the goal setting, and the identification of mitigation actions led to the mitigation strategy and mitigation action plan for this FMP. Section 5.2 below identifies the goals and objectives of this plan and Section 5.4 details the new mitigation action plan. The following umbrella mitigation strategy was developed for this FMP: Communicate the hazard information collected and analyzed through this planning process as well as FMPC success stories so that the community better understands what can happen where and what they themselves can do to be better prepared. Implement the action plan recommendations of this plan. Use existing rules,regulations,policies,and procedures already in existence. Monitor multi-objective management opportunities so that funding opportunities may be shared and packaged and broader constituent support may be garnered. 5.1.1 Continued Compliance with the NFIP Given the flood hazards in the planning area, an emphasis will be placed on continued compliance with the NFIP and participation in the CRS. The CRS was created in 1990. It is designed to recognize floodplain management activities that are above and beyond the NFIP's minimum requirements. Collier County, the City of Marco Island, and the City of Naples are currently classified as Class 6 communities, which gives a 20% premium discount to individuals in the Special Flood Hazard Area, and a 10% discount to policyholders outside the Special Flood Hazard Area. Preferred Risk Policies receive no discount. All three communities meet or exceed the following minimum requirements as set by the NFIP: • Issuing or denying floodplain development/building permits • Inspecting all development to assure compliance with the local ordinance • Maintaining records of floodplain development • Assisting in the preparation and revision of floodplain maps Page 211 Collier County,Florida Floodplain Management Plan an March 2015a amec foster wheeler Colter 161117 • Helping residents obtain information on flood hazards, floodplain map data, flood insurance and proper construction measures The County's Growth Management Division is responsible for the review and approval of all development applications to the County. The application review process includes an analysis for compliance with the County's Land Development Code, the County's Code of Laws and Ordinances (which includes the Flood Damage Prevention Ordinance), the Florida Building Code, the South Florida Water Management District permitting rules (when applicable), the County's Growth Management Plan, and other related regulations for development approval compliance. Both the development permit and building permit approval processes consist of extensive reviews of the submitted applications to determine compliance before a recommendation for approval is given. Once a development begins actual construction, there are a number of scheduled and required on-site inspections performed by trained inspection staff to ensure compliance before the construction can proceed toward completion. The Growth Management Division also maintains the record of all map revisions and changes received from FEMA. As a part of the services offered to the public,the Growth Management Division provides FEMA floodplain mapping information, flood insurance program information, flooding hazards, and proper construction methods within the special flood hazard area. The City of Naples Building Department is responsible for performing the above stated duties for the City of Naples. The City of Marco Island Growth Management Department is responsible for performing these duties for the City of Marco Island. The following is a summary of the CRS Activities for which Collier County currently receives credit: Activity 310—Elevation Certificates: The Building Department maintains elevation certificates for new and substantially improved buildings. Copies of elevation certificates are made available upon request. Elevation Certificates are also kept for post-FIRM structures and are listed on the community's website. Activity 320 — Map Information Service: Credit is provided for furnishing inquirers with flood zone information from the community's latest FIRM,publicizing the service annually and maintaining records. Activity 330—Outreach Projects: A community brochure is included in the local telephone book and is delivered to all properties in the community on an annual basis. An outreach brochure is mailed annually to all properties in the community's Special Flood Hazard Area (SFHA). The community also provides flood information through displays at public buildings. Activity 350 — Flood Protection Information: Documents relating to floodplain management are available in the reference section of the Collier County Public Library. Credit is also provided for floodplain information displayed on the community's website. Activity 360 — Flood Protection Assistance: The community provides site specific flood and flood related data to interested property owners and annually publicizes the service. Activity 410 — Additional Flood Data: Credit is provided for a cooperating technical partnership agreement with FEMA. Activity 420 — Open Space Preservation: Credit is provided for preserving approximately 152,270 acres in the SFHA as open space. Credit is also provided for open space land that is deed restricted and preserved in a natural state. Page 212 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler ger Count 164j7 co y Activity 430 — Higher Regulatory Standards: Credit is provided for enforcing state mandated regulatory standards. Credit is also provided for a BCEGS Classification of 4 for one and two family residential property and 3 for commercial and industrial property. Activity 440—Flood Data Maintenance: Credit is provided for maintaining and using digitized maps in the day to day management of the floodplain. Credit is also provided for establishing and maintaining a system of benchmarks and maintaining copies of all previous FIRMs. Activity 450 — Stormwater Management: The community enforces regulations for stormwater management,freeboard in non-SFHA zones, soil and erosion control,and water quality. Activity 510 — Floodplain Management Planning: Credit is provided for the adoption and implementation of the Floodplain Management Plan. A progress report must be submitted on an annual basis. Activity 540 — Drainage System Maintenance: A portion of the community's drainage system is inspected regularly throughout the year and maintenance is performed as needed by the Collier County Road Maintenance/Stormwater Management Department. Records are being maintained for both inspections and required maintenance. Credit is also provided for an ongoing Capital Improvements Program. The community also enforces a regulation prohibiting dumping in the drainage system. Activity 610 — Flood Warning Program: Credit is provided for a program that provides timely identification of impending flood threats, disseminates warnings to appropriate floodplain residents, and coordinates flood response activities. Credit is also provided for the designation as a StormReady Community by the National Weather Service. Activity 630 —Dam Safety: All Florida communities currently receive CRS credit for the state's dam safety program. Page 213 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler Count y Cor 5.2 Goals and Objectives 44 CFR Subsection D §201.6(c)(3)(i): [The mitigation strategy section shall include a] description of mitigation goals to reduce or avoid long-term vulnerabilities to the identified hazards. Section 4.0 Flood Risk Assessment documents the flood hazards and associated risks that threaten Collier County including the vulnerability to structures, infrastructure, and critical facilities. Section 4.4 Capability Assessment evaluates the capacity of the County to reduce the impact of those hazards. The intent of Goal Setting is to identify areas where improvements to existing capabilities (policies and programs)can be made so that community vulnerability is reduced. Goals are also necessary to guide the review of possible mitigation measures. This Plan needs to make sure that recommended actions are consistent with what is appropriate for the County. Mitigation goals need to reflect community priorities and should be consistent with other plans in the County. Goals: are general guidelines that explain what is to be achieved. They are usually broad-based policy type statements, long term and represent Global visions. Goals help define the benefits that the plan is trying to achieve. Objectives: are short term aims, when combined, form a strategy or course of action to meet a goal. Unlike goals,objectives are specific and measurable. 5.2.1 Coordination with Other Planning Efforts The goals of this Plan need to be consistent with and complement the goals of other planning efforts. The primary planning document where the goals of this Plan must complement and be consistent with is the County's Local Mitigation Strategy (LMS) and to a lesser degree the participating communities' comprehensive plans. The comprehensive plan is important as it is developed and designed to guide future growth within the community. Therefore, there should be some consistency in the overall goals and how they relate to each other. Likewise, the goals of the county's LMS play an important role as it also focuses on flood hazards and projects must be prioritized in the LMS in order to receive funding. 5.2.2 Goal Setting Exercise On November 19t, 2014, the Collier County FMPC conducted an exercise to outline its goals for this floodplain management plan. The first part of the exercise including asking each committee member: "What would you most like to see in Collier County's future?" Each member was given a handout which appears in Figure 5-1. Committee members wrote down their choices on post-it-notes. The notes were posted on the wall and organized by similar topics. There was some consistency in the members' topics. The handout had 20 possible statements, but the members' nominations included fewer than half of them. The resulting similar topics are listed below: • Improved stormwater management • Improved water quality • Improved/more affordable housing • Enhanced outreach efforts to residents and local businesses • Economic(job opportunities,younger people staying/moving into the area) • Improved recreation/open space Page 214 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler Co Ter County 6 A17 • Improved infrastructure • Preserved historical/cultural sites • Reduced flooding issues mois I. la E K 41 A second exercise was then conducted to recommend mitigation goals. Each member was given the hand out that appears in Figure 5-2 which asks "What should be the goals of the mitigation program?" Committee members wrote down their top three choices on post-it-notes. After the notes were placed on the wall,they were then organized by similar topics. The resulting goals are listed below: • Protect critical facilities • Protect wetlands/environmentally sensitive areas • Protect repetitively flooded areas • Enhanced education/outreach • Protect people's lives and public health • Reduce flooding • Leverage state/federal partnerships • Improve post-disaster recovery • Improve water quality • Improve floodplain management • Growth pays for growth • Ensure future development doesn't make things worse Page 215 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler Co ger County 16A17 tit; a+ar 4 The goal statements selected by committee members were in line with what they wanted to see in Collier County's future. The exercise revealed important information to guide the planning effort. For example, members stressed the importance of protecting lives and property, even though improving the economy and increasing the number of jobs was an important part of their vision for the future. 5.2.3 Resulting Goals and Objectives At the end of the exercises,the FMPC agreed upon five general goals for this planning effort. The FMPC also included objectives in support of the goals. The refined goals and objectives include: Objective 1.1:Maintain a database of flood problems and hazards. Objective 1.2: Maintain a database of repetitive loss claim history and mitigation activities. Objective 13: Review the Growth Management Plan, Land Development Code, and Ordinances for compatibility with these goals and objectives,and revise where appropriate and financially feasible. Objective 1.4: Develop more comprehensive evacuation plans. Objective 1.5: Review the adequacy of emergency procedures for flood events and coastal storm surge through training and exercises. Objective 1.6: Update FEMA designated flood zones based on the best available technical data and analysis. Objective 1.7: Enforce the minimum code requirements of the National Flood Insurance Program as adopted by the Board of County Commissioners. Objective 1.8: Conduct site investigations, research exposure and hazard data, and evaluate proposed modifications to repair and mitigate stormwater management problems. Page 216 Collier County,Florida Floodplain Management Plan T, March 2015 amec foster wheeler CO ler County1 6 7 Objective 1.9: Develop projects to reduce deficiencies within the stormwater management system as part of the Annual Update and Inventory Report(AUIR) and budget development process. Objective 2.1: Educate property owners, including repetitive loss properties, on FEMA grant programs and other methods in order to mitigate possible flood damage. Objective 2.2: Provide the current floodproofing and retrofitting information to property owners. Objective 2.3: Effectively communicate flood risk to residents, businesses, contractors, realtors and prospective buyers. Objective 2.4: Enhance community websites to provide comprehensive flood protection and flood preparedness information. Goat -Reduce t e}vuinera• ty o cr tical facillt es and infrastructure from the effects of flood hazards. Objective 3.1: Ensure protection standards for critical facilities meet Florida Building Code standards as adopted by the Board of County Commissioners. Objective 3.2:Work with appropriate personnel to prioritize critical and essential facilities in need of protection from potential flood damage. Objective 3.3: Implement flood mitigation measures or strategies, as necessary, to protect critical facilities. Objective 4.1: Maintain and enforce regulations to protect and restore wetlands and ecological functions for long-term environmental,economic and recreational values. Objective 4.2: Continue beach re-nourishment and dune construction programs for the protection of marine habitat,environmentally sensitive lands and other coastal resources. Objective 4.3: Pursue water management approaches and techniques that improve water quality and protect public health. Objective 4.4: Preserve and maintain open space in flood prone areas to reduce flood damage to buildings and to provide recreational benefits. Objective 4.5: Continue to protect aquifers and environmentally sensitive lands from encroachment of development by requiring buffers and other setbacks mechanisms. Page 217 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler kqk 9runty 16 Goal 5—Mini �.ry a the •.*. erse impacts to surrounding areas and watersh a Objective 5.1: Reduce stormwater runoff through adequate stormwater management, flood control, on- site retention and best management practices to mitigate impacts associated with incremental construction and redevelopment projects. Objective 5.2: Evaluate funding mechanisms to increase stormwater capital improvement programs. Objective 5.3:Minimize adverse impacts to the floodplain. Page 218 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler ,.., 04 17 Co yer County Goals Exercise—Part 1 What would you most like to see in Collier County's future? Here are possible answers to this question, listed in alphabetical order. Pick three that you think are most important. You may reword them or add new ones if you want. You have three cards. Use one card for each of your top three answers. - Educated children - Improved air quality - Improved water quality - Less new development - Less traffic congestion - Improved/more businesses - Improved/more cultural facilities - Improved/more housing - Improved/more public transportation - Improved/more job opportunities - Improved/more knowledgeable residents - Improved/more open space - Improved/more shopping - New development confined to areas already developed - Preserved historical/cultural sites - Special attention given to elderly/disabled - Special attention given to lower income areas - Special attention given to newer shopping areas - Special attention given to older business areas - Younger people staying/moving into the area - Other Figure 5-1-Handout for Goals Exercise—Part 1 Page 219 Collier County,Florida Floodplain Management Plan March 2015 emec i foster wheeler Sjunt y16417 Goals Exercise—Part 2 What should be the goals of our mitigation program? Here are possible answers to this question, listed in alphabetical order. Pick three that you think are most important. You may reword them or add new ones if you want. You have three cards. Use one card for each of your top three answers. - Help people protect themselves - Make sure future development doesn't make things worse - Maximize the share paid by benefiting property owners - Maximize use of state and federal funds - Minimize property owner's expenditures - Minimize public expenditures - New developments should pay the full cost of protection measures - Protect businesses from damage - Protect cars and other vehicles - Protect centers of employment - Protect critical facilities - Protect forests - Protect homes - Protect new/future buildings - Protect people's lives - Protect power stations and power lines - Protect public health - Protect public services (fire, police, etc.) - Protect repetitively flooded areas - Protect scenic areas, greenways, etc. - Protect schools - Protect shopping areas - Protect streets - Protect utilities (power, phone, water, sewer, etc.) - Protect wetlands/environmentally sensitive areas - Protect a particular area - Protect a particular property - Restrict development in hazardous areas - Use public/private partnerships - Other Figure 5-2-Handout for Goals Exercise-Part 2 Page 220 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler Col[Lier County 1617 5.3 Identification and Analysis of Mitigation Activities 44 CFR Subsection D §201.6(c)(3)(ii): [The mitigation strategy section shall include a]section that identifies and analyzes a comprehensive range of specific mitigation actions and projects being considered to reduce the effects of each hazard, with particular emphasis on new and existing buildings and infrastructure. All plans approved by FEMA after October 1, 2008, must also address the jurisdiction's participation in the NFIP, and continued compliance with NFIP requirements,as appropriate. In order to identify and select mitigation projects to support the mitigation goals,each hazard identified in Section 4.1 Hazard Identification was evaluated. The following were determined to be priority flood- related hazards: • Climate Change and Sea Level Rise • Coastal/Canal Bank Erosion • Flood: Stormwater/Localized Flooding • Hurricane and Tropical Storms (including Storm Surge) • Flood: 100/500 year Once it was determined which flood hazards warranted the development of specific mitigation actions, the FMPC analyzed viable mitigation options that supported the identified goals and objectives. The FMPC was provided with the following list of mitigation categories which are utilized as part of the CRS planning process. • Prevention(Required to be evaluated) • Property Protection • Natural Resource Protection • Emergency Services • Structural Projects • Public Information and Outreach The FMPC was also provided with examples of potential mitigation actions for each of the above categories. The FMPC was instructed to consider both future and existing buildings in evaluating possible mitigation actions. A facilitated discussion then took place to examine and analyze the options. Appendix B, Mitigation Strategy, provides a detailed discussion organized by CRS mitigation category of possible mitigation alternatives to assist the County in the review and identification of possible mitigation activities. This comprehensive review of possible mitigation activities details why some were appropriate for implementation and why others were not. As promoted by CRS, Prevention type mitigation alternatives were discussed for the flood hazards. This discussion was followed by a brainstorming session that generated a list of preferred mitigation actions by hazard. 5.3.1 Prioritization Process Once the mitigation actions were identified, the FMPC was provided with several decision- making tools, including FEMA's recommended prioritization criteria, STAPLEE sustainable disaster recovery criteria; Smart Growth principles; and others, to assist in deciding why one recommended action might be more important, more effective, or more likely to be implemented than another. STAPLEE stands for the following: Page 221 Collier County,Florida Floodplain Management Plan March 2015 amec IIM foster wheeler 1 6 A 1 7 Colt County • Social: Does the measure treat people fairly?(e.g. different groups,different generations) • Technical: Is the action technically feasibly? Does it solve the problem? • Administrative: Are there adequate staffing, funding and other capabilities to implement the project? • Political: Who are the stakeholders? Will there be adequate political and public support for the project? • Legal: Does the jurisdiction have the legal authority to implement the action? Is it legal? • Economic: Is the action cost-beneficial? Is there funding available? Will the action contribute to the local economy? • Environmental: Does the action comply with environmental regulations? Will there be negative environmental consequences from the action? In accordance with the DMA requirements, an emphasis was placed on the importance of a benefit-cost analysis in determining action priority. It was agreed that the following four criteria would be used to determine the priority of the action items: • Contribution of the action to save life or property • Availability of funding and perceived cost-effectiveness • Available resources for implementation • Ability of the action to address the problem A comprehensive review of mitigation measures was performed using the criteria (alternatives and selection criteria)in Appendix B. With these criteria in mind, FMPC members were asked to prioritize each mitigation project based on whether the project should be considered a short term, medium range or long range priority. The priority time frames for project implementation were determined to be as follows: Short Range = Project should be completed in less than one year Medium Range = Project should be completed in two to three years Long Range =Project should be completed in more than four years The process of identification and analysis of mitigation alternatives allowed the FMPC to come to consensus and to prioritize recommended mitigation actions. The FMPC discussed the contribution of the action to saving lives or property as first and foremost, with additional consideration given to the benefit-cost aspect of a project; however, this was not a quantitative analysis. The team agreed that prioritizing the actions collectively enabled the actions to be ranked in order of relative importance and helped steer the development of additional actions that meet the more important objectives while eliminating some of the actions which did not garner much support. Benefit-cost was also considered in greater detail in the development of the Mitigation Action Plan detailed below in Section 5.4. Page 222 Collier County,Florida Floodplain Management Plan 7.41 March 2015 amec foster wheeler Sr&punt „,„....„ County 6 1 ] 5.4 Mitigation Action Plan 44 CFR Subsection D §201.6(c)(3)(iii): [The mitigation strategy section shall include an] action plan describing how the actions identified in section (c)(3)(ii) will be prioritized, implemented, and administered by the local jurisdiction. Prioritization shall include a special emphasis on the extent to which benefits are maximized according to a cost benefit review of the proposed projects and their associated costs. This action plan was developed to present the recommendations developed by the FMPC for how Collier County can reduce the risk and vulnerability of people, property, infrastructure, and natural and cultural resources to future disaster losses. Emphasis was placed on both future and existing development. The action plan summarizes who is responsible for implementing each of the prioritized actions as well as when and how the actions will be implemented. Each action summary also includes a discussion of the benefit-cost review conducted to meet the regulatory requirements of the Disaster Mitigation Act. In order to meet the identified goals, this plan recommends 23 mitigation actions, which are summarized below in Table 5-1. Note: ID number does not indicate an order of priority. It is important to note that Collier County has many existing, detailed action descriptions, which include benefit-cost estimates, in other planning documents, such as, stormwater plans, and capital improvement budgets and reports. These actions are considered to be part of this plan, and the details, to avoid duplication, should be referenced in their original source document. The FMPC also realizes that new needs and priorities may arise as a result of a disaster or other circumstances and reserves the right to support new actions, as necessary, as long as they conform to the overall goals of this plan. Further, it should be clarified that the actions included in this mitigation strategy are subject to further review and refinement; alternatives analyses; and reprioritization due to funding availability and/or other criteria. The County is not obligated by this document to implement any or all of these projects. Rather this mitigation strategy represents the desires of the community to mitigate the risks and vulnerabilities from identified hazards. The actual selection, prioritization, and implementation of these actions will also be further evaluated in accordance with the CRS mitigation categories and criteria contained in Appendix B. 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V pC t. a) a) R -. =O p 0 Q G 00 bq 0 �aCOy ccj O) 0 Q N O a 5 cC ,a3 3 mu " b 0) on•— E • ,.,5 a' E ai o -4 . . al ao• v "a to L:' 'aa LB a) aQ � Qo•co o °E • c ' C •'a o = � o o cl . ..o � C 1 , . doCv a, . „ '? . a a a> 3 C C - o v i on eo b ; 0 a) p o 'V 'i O ? b o Q i v o• a,Cw C b C .5 u c „ a c‘i 8 5 ° Q a, w ,9 O a a a � ' c in V 0 , ,n vo N co on �, ° Nuo ` auo, � E. --0. o � Z V bt Co Ter Count y 7 5.5 Detailed Flood Hazard Mitigation Actions 5.5.1 Existing Mitigation Actions Carried Forward from 2008 Plan 1. Project Description: Annually prepare and schedule FMP progress report by April of each year and recommended FMPC activity to the BCC each year. Responsible Office: GMD—Floodplain Management Section Potential Funding: General Fund Timeframe: On-going 2. Project Description: The Flood Damage Prevention Ordinance will be evaluated for amending as needed. Responsible Office: GMD—Floodplain Management Section Potential Funding: General Fund Timeframe: On-going 3. Project Description: Coordinate roadway stormwater maintenance programs to address stormwater flooding problems. Responsible Office: Road Maintenance, Stormwater Planning Potential Funding: General Fund Timeframe: On-going 4. Project Description: Continue support of the Coastal Zone Management program. Responsible Office: GMD Potential Funding: General Fund Timeframe: On-going 5. Project Description: Continue to implement policies requiring BMPs for erosion and sediment controls to comply with NPDES permit requirements. Responsible Office: Stormwater Planning Potential Funding: General Fund Timeframe: On-going 6. Project Description: Continue to annually fulfill all training and reporting requirements to be certified as a"Storm Ready"community. Page 227 Collier County,Florida Floodplain Management Plan 1 March 2015 amec foster wheeler Co ler County 6 A 7 Responsible Office: Emergency Management Potential Funding: General Fund Timeframe: On-going 7. Project Description: Continue stormwater management and water quality programs to address BMP opportunities throughout the County. Track progress through the FMPC Action Report. Responsible Office: Stormwater Planning Potential Funding: General Fund Timeframe: On-going 8. Project Description: Annually prepare a budget to fully implement the Stormwater Capital Improvement Plan. Responsible Office: Engineering Department Potential Funding: General Fund Timeframe: On-going 9. Project Description: Prepare a public information meeting schedule annually and coordinate public information meetings for the FMPC. Responsible Office: GMD—Floodplain Management Section Potential Funding: General Fund Timeframe: On-going 10. Project Description: Enhance the County floodplain management website and hold meetings with federal/state/local organizations and agencies to identify flood hazard information and enhance flood hazard awareness. Responsible Office: GMD—Floodplain Management Section Potential Funding: General Fund Timeframe: On-going 11. Project Description: Coordinate with the local real estate boards to hold all hazards educational meetings. Responsible Office: GMD—Floodplain Management Section Potential Funding: General Fund Timeframe: On-going Page 228 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler CO ler County 16A17 12. Project Description: Annually visit each library branch containing the floodplain and flood insurance information by December of each year and update/replace materials as needed by the following February and report in April of the following year. Responsible Office: GMD—Floodplain Management Section Potential Funding: General Fund Timeframe: On-going 13. Project Description: Coordinate with other County departments to develop a program for addressing all technical assistance questions from the general public. Responsible Office: GMD—Floodplain Management Section Potential Funding: General Fund Timeframe: On-going 5.5.2 New Mitigation Actions 1. Develop a Program for Public Information (PPI) involving Collier County, Marco Island, Naples and Everglades City. Project Description: Coordinate with Marco Island, Naples, and Everglades City to develop a PPI program that is consistent with CRS Activity 330—Outreach Projects. Hazards Addressed: The PPI committee will delineate, as part of its plan,target areas that are subject to flooding/flooding concerns. All hazards may be included in the PPI Program (Climate Change and Sea Level Rise Coastal/Canal Bank Erosion, Dam/Levee Failure, Flood: 100/500 year, Flood: Stormwater/Localized Flooding,Hurricane and Tropical Storms(including Storm Surge)) Issue/Background: The PPI program will discuss various target audiences. The PPI offers a maximum of up to 130 CRS credit points and allows for several areas of overlap. Other Alternatives: No action. Existing Planning Mechanism(s) through which Action Will Be Implemented: Existing committees will be accessed to develop the PPI group. Responsible Office: GMD—Floodplain Management Section Priority(H,M,L): High Cost Estimate: Staff time, Volunteer time,Funds for informational mailings (General Fund- $10,000 or less+postage fees) Benefits (Losses Avoided): Educational Potential Funding: General Fund Page 229 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler Co -rer County Timeframe: 1 —2 years 2. Develop a comprehensive program to provide flood insurance information to property owners in the SFHA. Project Description: Develop a comprehensive program to deliver flood insurance information to property owners in the SFHA through methods, such as the following: • Services provided by County Staff include, but are not limited to: FIRM information services; flood protection information (Act. 350), Flood protection Assistance (Activity 360), Elevation Certificate information (Act. 310), names of local surveyors; names of consultants and contractors knowledgeable in retrofitting techniques; assistance regarding Letter of Map Change process, etc. • Current flood insurance information and materials will be provided as requested by groups or agencies in the area, including but not limited to: presentations about flood insurance reforms; explanations of NFIP,FIRM,CRS,etc. • Annual mailings will continue to be sent to bankers/lenders/real estate agents, rep loss areas, rep loss properties,and all property owners in the SFHA(CRS Activity 330) Hazards Addressed: Coastal/Canal Bank Erosion, Flood: 100/500 year, Flood: Stormwater/Localized Flooding,Hurricane and Tropical Storms (including Storm Surge) Issue/Background: GMD/Floodplain Management Section currently provides flood insurance information to property owners in the SFHA, individuals who walk-in for flood related questions, and civic and other organizations which seek information and updates on flood insurance reforms. Other Alternatives: No action,however,this is ongoing effort by the GMD and is requested daily by the public. Existing Planning Mechanism(s) through which Action Will Be Implemented: Floodplain Management Section Staff Responsible Office: GMD-Floodplain Management Section Priority(H,M,L): High Cost Estimate: Staff time,funds for informational mailings Benefits (Losses Avoided): Local property owners and industry related professionals are provided information, as needed, including: flood insurance and FIRM information services; flood protection information (Act. 350), Flood protection Assistance (Activity 360), Elevation Certificate information (Act. 310), names of local surveyors; names of consultants and contractors knowledgeable in retrofitting techniques; assistance regarding LOMC process,etc. Potential Funding: General Fund — need to maintain current funding for this action. Receive free information pamphlets,etc.from FEMA. Timeframe: 1-2 years—ongoing Page 230 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler rt 9runtY 3. Support Stormwater Planning projects,starting with the top three: 1.Naples Park Stormwater Management Improvement, 2. Griffin Road Stormwater Management Improvement, and 3. Ridge Street Stormwater Management Improvement. Project Description: Stormwater Planning has prioritized 15 potential capital improvement projects as part of the Stormwater Management Project Planning Process. These projects have been reviewed and scored by an internal staff committee. This committee is made up of county staff from different departments such as Stormwater Planning, Asset Management, Engineering, Road Maintenance and Pollution Control. These projects have been vetted through the Floodplain Management Planning Committee on September 30th, 2014. Scoring is based on health and safety issues, project feasibility, environmental benefits, and project support. The top three have been identified by the committee as the most beneficial in all areas and the most feasible. Hazards Addressed: Flood: 100/500 year; Flood: Stormwater/Localized Flooding; Hurricane and Tropical Storms(including Storm Surge) Issue/Background: Each of the Project Profile Fact sheets, included at the end of the Action Item details describes the origin of each project, the primary and secondary objectives, the affected acreage, the number of parcels and the property's assed value. Additional figures regarding the costs of each project are included Other Alternatives: No action or selection of different projects. Existing Planning Mechanism(s) through which Action Will Be Implemented: Top ranked projects are selected for feasibility studies. A feasibility study will provide more detailed and secured information regarding cost and duration of the project. Projects will be re-scored to advance to the Stormwater Planning Capital Improvement Program as funds become available. Responsible Office: Stormwater Planning Priority(H,M,L): High Cost Estimate: See individual Project Profile Sheets Benefits (Losses Avoided): All three projects profiles identify a primary and secondary objective. Objectives include stormwater capacity, water quality, and environmental restoration. These objectives benefit local residents and the county at large. Potential Funding: Stormwater Capital Improvement Fund. No funding mechanism is currently in place; however, these projects have been identifies as priority projects for funding identification for grants, enterprise, and/or general revenue over the next five years. Timeframe: 5 years 4. Maintain a professional landscaper certification program. Project Description: To educate landscape and lawn maintenance businesses in Collier County in order to protect local watersheds from fertilizer, pesticide and herbicide impacts. Chemicals such as Page 231 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler ColLter County 1 6 A 1 7 fertilizers, pesticides and herbicides present a significant danger to surface and groundwater quality. Overuse of such chemicals can lead to eutrophication of local waterways causing algae blooms, fish kills and drinking water contamination. Hazards Addressed: Flood: Stormwater/Localized Flooding Issue/Background: Collier County is required to meet state and national water quality standards for surface and groundwater. The landscaper certification program is one of the ways that Collier County demonstrates active protection of local water quality. Other Alternatives: Public outreach and education. Existing Planning Mechanism(s) through which Action Will Be Implemented: As with any trade an occupational license is required from the local business tax office. In addition to a business license, Collier County Contractor Licensing has been managing landscaper licensure in the current fashion since 2007. To obtain landscape contractor licensing the applicant must complete the Gainesville Independent Testing Services Inc. (GITS)test with a score of 75% or better, along with an application that is evaluated by Contractor Licensing and must be able to prove 12 months of experience in the landscaping trade. To be able to apply fertilizers in the County the applicant must be Green Industries Best Management Practices (GI-BMP) certified. This certificate requires a passing score of 75% or better. The GI-BMP certificate, photo ID and an application must be then submitted to the Florida Department of Agriculture and Consumer Services (FDACS). Responsible Office: GI-BMP office, Collier County Contractor licensing, Collier County Tax Collector: Business Tax Department and FDACS. Priority(H,M,L): Medium. It is currently a well-implemented program in place since January 2014. Cost Estimate: Cost charged to business owner/worker includes: GITS application cost is $130 with an additional $80-120 to take the test, GI-BMP training fee $15 to $30 depending on the need for training, $25 application fee submitted to FDACS for state applicators license. Staff time is accounted for in budget cycles. Benefits (Losses Avoided): It is essential to certify landscapers in proper technique when land applying chemicals in order to reduce nutrient impacts to local watersheds. Potential Funding: National Pollutant Discharge Elimination System (NPDES) funds used to subsidize training needs for the GI-BMP training courses. Timeframe: Ongoing. 5. Utilize pollutant screening baskets in catch basins—City of Marco Island only. Project Description: Improve water quality and reduce public health hazards by installing stormwater inlet skimmer boxes. In addition, capturing and holding a wide range of contaminants such as soil particulates, liquid organics, trash and both organic and inorganic debris meet State TMDL discharge requirements. Page 232 Collier County,Florida Floodplain Management Plan 1. March 2015 amec foster wheeler Co rer County 16A17 Hazards Addressed: Flood: 100/500 year; Flood: Stormwater/Localized Flooding Issue/Background: During the rainy season the ground gets saturated, causing water to flow quickly across impervious surfaces. Moving quickly, not having a chance to percolate into the soil, the water picks up pollutants as it travels to the swales and storm drains. The pollutants in the stormwater runoff come from roadways, driveways, sidewalks, roofs, and residues on vegetation, mostly consisting of organic particles, pesticides, fertilizers, gas, oils and larger debris. In the past communities have had to close their public beaches for days due to high levels of bacteria that could be harmful to beach goers and swimmers. The Florida Department of Health stated the high bacteria concentrations at these beaches came from stormwater runoff. One hundred miles of canals equates to over one hundred miles of roadways and, of course, adding in roof tops, driveways, sidewalks, bricked features in yards, docks and pool decks means this small island has a large area of impervious surfaces which in turn creates high flows of stormwater runoff to the lakes, canals, Marco River and Gulf of Mexico. Stormwater runoff treatment is extremely important to protect and maintain the quality of the surface waters. Over the past few years, Marco Island has improved the over 1,500 stormwater outfalls throughout the island by installing treatment systems referred to as "storm inlet skimmer boxes". The skimmer boxes have two steps to treat or"clean" stormwater runoff before the water flows into the canal system. Within the skimmer box, encircling the grate like a boom, is a hydrocarbon filter. The boom-like filter catches larger debris, grass clippings, leaves, twigs, and trash of all types, that is carried by stormwater runoff as well as absorbing fertilizer, pesticide and organic particles. When a small rain shower or slow moving storm occurs,the stormwater runoff has low to medium in flow;the water has to travel through the boom- like filter before entering the drain. If a deluge occurs, the stormwater flow is high, the water will travel through and cascade over the boom prior to entering the drain. Once in the drain, the second step to treating or "cleaning" the runoff water is the graduated sieve which is a series of screening that progressively sieves or filters the water through smaller grates or filters, collecting nutrients and silt that still remains in the runoff water.Water may sit in the graduated sieve system until the stormwater flow is high enough to move the water through the progressive screening system then to the out fall to surface waters. Other Alternatives: Fertilizer ordinances. Existing Planning Mechanism(s) through which Action Will Be Implemented: City's Capital Improvement Program. Responsible Office: City of Marco Island Public Works Department Priority(H,M,L): High Cost Estimate: $200,000 per year for five years with a unit price of approximately$700 each. Benefits (Losses Avoided): Economic disruptions from lost tourism and public health and welfare. Potential Funding: Grants from the South Florida Management District/Funding from CIP Timeframe: Ongoing. Page 233 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler 16A17 Cr f' m leCounty 6. Develop a Low Impact Development(LID)Manual. Project Description: To develop a LID Manual that would provide options for alternate designs for re-development and new development projects. Hazards Addressed: Flood: Stormwater/Localized Flooding Issue/Background: The County's accepted Watershed Management Plan identifies in Vol. 3 Initiative 1 - a Low Impact Development Program. The initiative proposes the implementation of an LID program that would apply to development.The Watershed Management Plan relays that"LID is a well-established approach to stormwater management that relies on hydrology-based site planning and design.LID aims to minimizing the volume of runoff and associated pollutant loads reaching the receiving water bodies and managing it as close as possible to where it is generated. Techniques defined as micro-controls are implemented in a dispersed fashion throughout a site." Other Alternatives: No action, however, this is an existing project that is supported by the Watershed Management Plan. Existing Planning Mechanism(s) through which Action Will Be Implemented: An LID design guide will be developed by staff and with input from the engineering community and interested stakeholders. After a period of time for the development community to exercise the guide and assess its workability,the designs will be worked into the LDC for full implementation. Incentives can be used to help implement LID and it will start as a voluntary program. Responsible Office: Engineering&Natural Resources Department Priority(H,M,L): Medium Cost Estimate: Staff time,volunteer time. Benefits (Losses Avoided): Increased onsite stormwater storage will reduce the potential damage to onsite structures. Potential Funding: Budgeted with Pollution Control Dept. funding. Timeframe: 2-4 years 7. Provide education/outreach for the Flood Watch Program(BCB Tool). Project Description: The Big Cypress Basin Real-time Hydrologic Monitoring and Modeling System (BCBRTHMS, a.k.a. Flood Watch) is a mission critical tool used by the Big Cypress Basin (BCB) and BCB Field station for real-time decision support for daily operation and maintenance activities. The system is also used by the Big Cypress Basin (BCB) as a live watershed management tool, as well as an online public outreach tool. The Collier County Emergency Management Department is also in the process of adopting the system as its "Flood Recognition Alert System." The on-line link of BCBRTHMS system is as following: www.sfwmd.gov/floodwatch/index.htm. This tool will be shared with the public and interested community groups so as to better inform them. Page 234 Collier County,Florida Floodplain Management Plan March 2015 li amec wiV foster wheeler Co ler County 16A17 Hazards Addressed: Flood: 100/500 year; Flood: Stormwater/Localized Flooding; Hurricane and Tropical Storms (including Storm Surge) Issue/Background: Prior to implementation of this program, water managers and the public had no way of knowing water levels in canals without being in the office.Now, this program provides 24 hour monitoring of the flood control system. Other Alternatives: No action. Existing Planning Mechanism(s)through which Action Will Be Implemented: Maintain program. Evaluate the applicability of the program for the county's system at a later date. Responsible Office: Big Cypress Basin, South Florida Water Management District Priority(H,M,L): High. Cost Estimate: Staff time. The system is operated by BCB and is a $25,000 contractual obligation for program plus 1.5 FTE ($100,000—roughly)to support program. Benefits (Losses Avoided): System sends text alert to District water managers and County's Emergency Management staff when levels in canal reach critical stages. Site is also available on District website and County also provides a link to the page. Anyone can check canal stages and gate operations and see our operational status and see if water is rising in certain reaches of canals. Potential Funding: General Fund. For BCB-Annual maintenance fee and Basin staff will maintain it within the BCB annual budget. Timeframe: Ongoing. 8. Maintain a"Localized Flooding Bubble Map". Project Description: The "Localized Flooding Bubble Map" is a database of localized flooding events and captures the extent of the localized flooding following a major rain event — identified as a flash flood warning. It is also utilized to illustrate areas where improvements could be considered and to determine if completed capital improvements are working. The map is shared with the Weather Service to inform them of areas prone to localized flooding. A historical map is also maintained as of 2003 to show yearly flooding impacts in the county. Hazards Addressed: Flood: 100/500 year; Flood: Stormwater/Localized Flooding; Hurricane and Tropical Storms (including Storm Surge) Issue/Background: 2003 -present. Other Alternatives: No action;Redefine major rain event. Page 235 Collier County,Florida Floodplain Management Plan March 20151 amec foster wheeler 16A17 Cott County Existing Planning Mechanism(s) through which Action Will Be Implemented: Currently, GMD- Road Maintenance identifies the areas that are flooded during or following a major rain event. This information is shared with EMS and other sections of the GMD, including Stormwater Planning and Floodplain Management. Public Utilities is also notified by EMS during an event, in particular if lift stations are in areas that are likely to flood. Road Maintenance, EMS, Stormwater Planning and the Floodplain Management Section work collectively to provide data to the GIS Department to update the map. Responsible Office: Road Maintenance,EMS, Stormwater Planning,Floodplain Management Section Priority(H,M,L): Medium Cost Estimate: Staff time. Benefits (Losses Avoided): The map is used to inform county staff about areas that have historically flooded and areas that may incur localized flooding again. This is particularly helpful during a major storm event. The map can also be used for project prioritization for the AUIR or Stormwater Planning prioritization efforts. Further, once Stormwater improvements are made, it can be used to see if the improvements are working. Potential Funding:There are no additional costs associated with the"Localized Flooding Bubble Map". Timeframe: Ongoing. 9. Review the Land Development Code and Floodplain Damage Prevention Ordinance to propose improvements regarding floodplain management,as needed and as appropriate. Project Description: The Land Development Code (LDC) will be evaluated on an as needed and as appropriate basis to address related flood mitigation provisions. Hazards Addressed: All hazards may be addressed by LDC, including: Climate Change and Sea Level Rise; Coastal/Canal Bank Erosion; Dam/Levee Failure; Flood: 100/500 year; Flood: Stormwater/Localized Flooding; Hurricane and Tropical Storms(including Storm Surge) Issue/Background: There are several provisions within the LDC regarding floodplain management that are outdated which need to be examined. Further, the FDPO, although in compliance, is not consistent with the Florida Building Code and needs to be reviewed for consistency. Other Alternatives: No action. Existing Planning Mechanism(s)through which Action Will Be Implemented: The LDC Amendment cycle process and related Code of Laws amendment process, which contains the Flood Damage Prevention Ordinance. It would also be beneficial to utilize the PPI committee to assist with outreach to the public regarding any changes to any codes. Responsible Office: Floodplain Management Priority(H,M,L): Low Page 236 Collier County,Florida Floodplain Management Plan March 2015 amec 41W- foster wheeler Co ler County 1 6 A 1 7 Cost Estimate: Staff time Benefits (Losses Avoided): To maintain relevant and current floodplain management standards. Potential Funding: There are no additional costs associated with this item. Timeframe: 5 years 10. Plan to obtain topographic information,including LiDAR in 10-15 year intervals. Project Description: Plan to obtain updated topographic information, including LiDAR in 10-15 year intervals to improve the FIRM's accuracy. This includes the RFP process, data collection period, and Physical Map Revision (PMR) review and approval process. Hazards Addressed: Improving the FIRM's accuracy will provide information that can be used to understand risks related to all hazards. Climate Change and Sea Level Rise; Coastal/Canal Bank Erosion; Dam/Levee Failure; Flood: 100/500 year; Flood: Stormwater/Localized Flooding; Hurricane and Tropical Storms(including Storm Surge) Issue/Background: The County's current topographic information was collected in 200_and the FIRM became effective May, 17, 2012. At that time the county partnered with the USACORE and the Collier County Property Appraiser to collect LiDAR. As of January 2015, the County is undergoing RiskMAP which will provide information regarding the coastal area and has submitted two PMRSs for four basins (Coco B, Coco C, District 6, and Henderson). A 10-15 year time period would show changes in topography due to change in the natural and built environment. Other Alternatives: No action; Change the time frame. Existing Planning Mechanism(s) through which Action Will Be Implemented: The RFP process will be required and data collection and review time must be considered. Partnerships may be sought with State agencies,Federal agencies and local agencies, such as the property appraiser. Responsible Office: Floodplain Management Priority(H,M,L): Medium Cost Estimate: $5 million or more Benefits (Losses Avoided): Updated and accurate topographic information will provide improved decision making capabilities for county officials, the development industry, and the general public. The special flood hazard area will be updated and areas that have changed in elevation, areas that are more susceptible to flooding and areas that are more resilient to flooding will be mapped. Potential Funding: General Fund. No funding mechanism is currently in place; however, this may be identified as a priority project for funding identification and funded through grants, enterprise, and/or general revenue. Timeframe: 5 years Page 237 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler Sj9unty I 6A 1 7 This page intentionally left blank. Page 238 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler Co ier County 1 6 A 1 7 6 PLAN ADOPTION 44 CFR Subsection D §201.6(c)(5): [The plan shall include] documentation that the plan has been formally approved by the governing body of the jurisdiction requesting approval of the plan(e.g., City Council,County Commissioner,Tribal Council). The purpose of formally adopting this plan is to secure buy-in from Collier County, the City of Marco Island and the City of Naples,raise awareness of the plan, and formalize the plan's implementation. The adoption of this plan completes Planning Step 9 of the 10-step planning process: Adopt the Plan, in accordance with the requirements of DMA 2000. The Collier County Board of County Commissioners, City of Marco Island and City of Naples City Councils have adopted the Floodplain Management Plan by passing a resolution. Copies of the executed resolutions are shown below. Note to Reviewers: When this plan has been reviewed and approved pending adoption by FEMA Region IV,the adoption resolutions will be signed and added here. Page 239 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler Srunty 1 6 A 1 7 „.„....„.,.., This page intentionally left blank. Page 240 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler Cotter County 1 6 A 1 7 7 PLAN IMPLEMENTATION AND MAINTENANCE 44 CFR Subsection D §201.6(c)(4): [The plan maintenance process shall include a] section describing the method and schedule of monitoring, evaluating, and updating the mitigation plan within a five-year cycle. Implementation and maintenance of the plan is critical to the overall success of hazard mitigation planning. This is Planning Step 10 of the 10-step planning process. This section provides an overview of the overall strategy for plan implementation and maintenance and outlines the method and schedule for monitoring, updating, and evaluating the plan. The section also discusses incorporating the plan into existing planning mechanisms and how to address continued public involvement. 7.1 Implementation Once adopted, the plan must be implemented in order to be effective. While this plan contains many worthwhile actions, Collier County will need to decide which action(s) to undertake first. The priority assigned the actions in the planning process and funding availability will affect that decision. Low or no- cost actions most easily demonstrate progress toward successful plan implementation. An important implementation mechanism that is highly effective and low-cost is incorporation of the floodplain management plan recommendations and their underlying principles into other plans and mechanisms, such as the County's Comprehensive Growth Management Plan and Stormwater Management Plan. Collier County already implements policies and programs to reduce losses to life and property from hazards. This plan builds upon the momentum developed through previous and related planning efforts and mitigation programs and recommends implementing actions, where possible,through these other program mechanisms. Mitigation is most successful when it is incorporated into the day-to-day functions and priorities of government. Implementation will be accomplished by adhering to the schedules identified for each action and through constant, pervasive, and energetic efforts to network and highlight the multi-objective, win- win benefits to each program and the community. This effort is achieved through the routine actions of monitoring agendas, attending meetings, and promoting a safe, sustainable community. Additional mitigation strategies could include consistent and ongoing enforcement of existing policies and vigilant review of programs for coordination and multi-objective opportunities. Simultaneous to these efforts, it is important to maintain a constant monitoring of funding opportunities that can be leveraged to implement some of the more costly recommended actions. This will include creating and maintaining a bank of ideas on how to meet local match or participation requirements. When funding does become available,the County will be in a position to capitalize on the opportunity. Funding opportunities to be monitored include special pre- and post-disaster funds, state and federal earmarked funds, benefit assessments, and other grant programs, including those that can serve or support multi- objective applications. Responsibility for Implementation of Goals and Activities Elected officials, officials appointed to head community departments and community staff are charged with implementation of various activities in the plan. During the quarterly reviews as described later in this section, an assessment of progress on each of the goals and activities in the plan will be determined and noted. At that time, recommendations will be made to modify timeframes for completion of Page 241 Collier County,Florida Floodplain Management Plan 11 March 2015i amec foster wheeler Co ier Count 16A17 y activities, funding resources, and responsible entities. On a quarterly basis, the priority standing of various activities may also be changed. Some activities that are found not to be achievable may be removed from the plan entirely and activities addressing problems unforeseen during plan development may be added. 7.1.1 Role of Floodplain Management Planning Committee in Implementation, Monitoring and Maintenance With adoption of this plan, Collier County will be responsible for the plan implementation and maintenance. The FMPC, identified in Section 3, will convene quarterly each year to ensure mitigation strategies are being implemented and the County continues to maintain compliance with the NFIP. As such,Collier County agrees to continue its relationship with the FMPC and: • Act as a forum for flood mitigation issues; • Disseminate flood mitigation ideas and activities to all participants; • Pursue the implementation of high-priority,low/no-cost recommended actions; • Ensure flood mitigation remains a consideration for community decision makers; • Maintain a vigilant monitoring of multi-objective cost-share opportunities to help the community implement the plan's recommended actions for which no current funding exists; • Monitor and assist in implementation and update of this plan; • Report on plan progress and recommended revisions to the County Commission; and • Inform and solicit input from the public. The primary duty is to see the plan successfully carried out and report to the County Commission,FDEM, FEMA, and the public on the status of plan implementation and mitigation opportunities. Other duties include reviewing and promoting mitigation proposals, considering stakeholder concerns about flood mitigation,passing concerns on to appropriate entities, and posting relevant information on the County's website(and others as appropriate). 7.2 Maintenance Plan maintenance implies an ongoing effort to monitor and evaluate plan implementation and to update the plan as progress,roadblocks,or changing circumstances are recognized. 7.2.1 Maintenance Schedule Collier County's Growth Management Division is responsible for initiating plan reviews. In order to monitor progress and update the mitigation strategies identified in the action plan, Collier County will revisit this plan quarterly and following a hazard event. The County will submit a five-year written update to FDEM and FEMA Region IV, unless disaster or other circumstances (e.g., changing regulations)require a change to this schedule. With this plan update anticipated to be fully approved and adopted in 2015,the next plan update for the County will occur in 2020. 7.2.2 Maintenance Evaluation Process Evaluation of progress can be achieved by monitoring changes in vulnerabilities identified in the plan. Changes in vulnerability can be identified by noting: • Decreased vulnerability as a result of implementing recommended actions; • Increased vulnerability as a result of failed or ineffective mitigation actions; and/or • Increased vulnerability as a result of new development(and/or further annexation). Page 242 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler Co ger County 1 7 Updates to this plan will: • Consider changes in vulnerability due to action implementation; • Document success stories where mitigation efforts have proven effective; • Document areas where mitigation actions were not effective; • Document any new hazards that may arise or were previously overlooked; • Incorporate new data or studies on hazards and risks; • Incorporate new capabilities or changes in capabilities; • Incorporate growth and development-related changes to infrastructure inventories;and • Incorporate new action recommendations or changes in action prioritization. Changes will be made to the plan during the update process to accommodate for actions that have failed or are not considered feasible after a review of their consistency with established criteria, time frame, community priorities, and/or funding resources. Actions that were not ranked high but were identified as potential mitigation activities will be reviewed as well during the monitoring and update of this plan to determine feasibility of future implementation. Updating of the plan will be by written changes and submissions, as is appropriate and necessary, and as approved by the County Commission. In keeping with the five-year update process, the FMPC will convene public meetings to solicit public input on the plan and its routine maintenance and the final product will be adopted by the County Commission Specifically,the County will adhere to the following process for the next update of this FMP: Quarterly Plan Review Process For the 2015 floodplain management plan update review process, Collier County's Growth Management Division will be responsible for facilitating, coordinating, and scheduling reviews and maintenance of the plan. The review of the Floodplain Management Plan will normally occur on a quarterly basis each year and will be conducted as follows: • The County's Growth Management Division will provide notice for the meeting with a County News Release. • If topics for discussion will directly impact community member or specific groups, they will be notified. Notices will be mailed to the members of the FMPC,federal, state, and local agencies,non- profit groups,local planning agencies,representatives of business interests,neighboring communities, and others advising them of the date,time,and place for the review. • Prior to the review, department heads and others tasked with implementation of the various activities will be queried concerning progress on each activity in their area of responsibility and asked to present a report at the review meeting. • After the quarterly review meeting, minutes of the meeting and a quarterly report will be prepared by the FMPC. The report will be made available to the County Commission and to the public for informational purposes only. • On a yearly basis, a report will be prepared by the FMPC and presented to the County Commission for formal review,and a request will be made that the Commission take action to recognize and adopt any changes resulting from the review. The report will then be forwarded to the ISO/CRS specialist for the CRS program. Note: Because Collier County abides by the State of Florida"Sunshine Law", all quarterly review meetings will be open to the public. Page 243 Collier County,Florida Floodplain Management Plan 7 March 2015 amec foster wheeler V� Sunty 7 Criteria for Quarterly Reviews The criteria recommended in 44 CFR 201 and 206 will be utilized in reviewing and updating the plan. More specifically,the quarterly reviews will include the following information: Regular Meeting: • Report on Action Mitigation items. • Community growth or change in the past quarter,if any. • The number of substantially damaged or substantially improved structures by flood zone. • The renovations to public infrastructure including water, sewer, drainage, roads, bridges, gas lines, and buildings. Meeting if a Natural Disaster Occurs: • Natural hazard occurrences that required activation of the Emergency Operations Center (EOC) and whether or not the event resulted in a presidential disaster declaration. • Natural hazard occurrences that were not of a magnitude to warrant activation of the EOC or a federal disaster declaration but were severe enough to cause damage in the community or closure of businesses,schools,or public services. • The dates of hazard events descriptions. • Documented damages due to the event. • Closures of places of employment or schools and the number of days closed. • Road or bridge closures due to the hazard and the length of time closed. • Assessment of the number of private and public buildings damaged and whether the damage was minor, substantial, major, or if buildings were destroyed. The assessment will include residences, mobile homes, commercial structures, industrial structures, and public buildings, such as schools and public safety buildings. • Review of any changes in federal,state,and local policies to determine the impact of these policies on the community and how and if the policy changes can or should be incorporated into the Floodplain Management Plan. Review of the status of implementation of projects (mitigation strategies) including projects completed will be noted. Projects behind schedule will include a reason for delay of implementation. 7.2.3 Incorporation into Existing Planning Mechanisms Another important implementation mechanism that is highly effective and low-cost is incorporation of the Floodplain Management Plan recommendations and their underlying principles into other plans and mechanisms. Where possible, plan participants will use existing plans and/or programs to implement hazard mitigation actions. As previously stated,mitigation is most successful when it is incorporated into the day-to-day functions and priorities of government and development. As described in this plan's capability assessment,Collier County,the City of Marco Island and the City of Naples already implement policies and programs to reduce losses to life and property from hazards. This plan builds upon the momentum developed through previous and related planning efforts and mitigation programs and recommends implementing actions, where possible, through these other program mechanisms. These existing mechanisms include: • Collier County Local Mitigation Strategy • Comprehensive Growth Management Plans • Emergency Management Plans • Ordinances Page 244 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler 16A17 CoILl�ier County • Flood/stormwater management/master plans • Other plans,regulations, and practices with a mitigation focus Those involved in these other planning mechanisms will be responsible for integrating the findings and recommendations of this plan with these other plans, programs, etc., as appropriate. As described in Section 7.1 Implementation, incorporation into existing planning mechanisms will be done through the routine actions of: • Monitoring other planning/program agendas; • Attending other planning/program meetings; • Participating in other planning processes; and • Monitoring community budget meetings for other community program opportunities. The successful implementation of this mitigation strategy will require constant and vigilant review of existing plans and programs for coordination and multi-objective opportunities that promote a safe, sustainable community. Efforts should continuously be made to monitor the progress of mitigation actions implemented through other planning mechanisms and, where appropriate, their priority actions should be incorporated into updates of this floodplain management plan. 7.2.4 Continued Public Involvement Continued public involvement is imperative to the overall success of the plan's implementation. The update process provides an opportunity to solicit participation from new and existing stakeholders and to publicize success stories from the plan implementation and seek additional public comment. The plan maintenance and update process will include continued public and stakeholder involvement and input through attendance at designated committee meetings, web postings, press releases to local media, and through public hearings. Public Involvement Process for Quarterly Reviews The public will be noticed by a County News Release specifying the date and time for the review and inviting public participation. Public Involvement for Five-year Update When the FMPC reconvenes for the update, they will coordinate with all community members participating in the planning process—including those that joined the committee since the planning process began—to update and revise the plan. As part of this effort, public meetings will be held and public comments will be solicited on the plan update draft. The committee will coordinate this public outreach process with the public information program established pursuant to the 2013 guidelines from the CRS. Page 245 Collier County,Florida Floodplain Management Plan March 2015 41M- amec foster wheeler County 16A17 Copier Co y This page intentionally left blank. Page 246 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler Coder County s6 A 1 7 APPENDIX A: PLANNING PROCESS Planning Step 1: Organize to Prepare the Plan Table A-1: FMPC Meeting Dates Note: All FMPC Meetings were open to the public. Meeting Type Meeting Topic Meeting Date Meeting Location 1) Introduction to DMA,CRS and the planning process Collier County FMPC#1 2) Organize resources: the role of the FMPC, Growth July 16,2014 (Kick-off) planning for public involvement,and coordinating Management with other agencies and stakeholders Division Office 3) Introduction to hazard identification 1) Review/discussion of Flood Risk Assessment Collier County (Assess the Hazard) Growth FMPC#2 2) Review/discussion of Vulnerability Assessment September 30,2014 Management (Assess the Problem) Division Office 1) Continued review/discussion of Flood Risk Collier County FMPC#3 Assessment(Assess the Hazard) Growth October 23,2014 2) Continued review/discussion of Vulnerability Management Assessment(Assess the Problem) Division Office Collier County FMPC#4 1) Review of existing Goals from 2008 FMP November 19,2014 Government Center 2) Development of new Goals for 2014 FMP Risk Management Training Room 1) Review/status of existing Mitigation Strategies Collier County FMPC#5 from 2008 FMP November 20,2014 Government Center 2) Development of new/updated Mitigation Strategies Risk Management for 2014 FMP Training Room 1) Review"Draft"Floodplain Management Plan Collier County FMPC#6 December 16,2014 Government Center Risk 2) Solicit comments and feedback from the FMPC Management Room Page 247 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler 1 6 A 1 7 . .., q_ T P 00 4 4! 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November 19,2014 FMPC Meeting i! �, Mt or. iik, I .i-:— a November 20,2014 FMPC Meeting Page 251 Collier County,Florida Floodplain Management Plan March 2015 41* amec foster wheeler 1 6 Co -ler County A 17 July 16,2014 MINUTES OF THE MEETING OF THE COLLIER COUNTY FLOODPLAIN MANAGEMENT PLANNING COMMITTEE Naples,Florida,July 16,2014 LET IT BE REMEMBERED,the Collier County Floodplain Management Planning Committee in and for the County of Collier,having conducted business herein.met on this date at 10:00 A.M.in REGULAR SESSION at the Collier County Growth Management Division Building,Conference Room#6091610,2800 N.Horseshoe Drive,Naples,Florida, with the following members present: Chairman: Jerry Kurtz.CC Staff Vice Chairman: Craig Pajer.CC Staff Kenneth Bills Rick Zyvolosk(Alt.),CC Staff John Walsh.CC Staff Christa Carrera,City of Naples Phillip Brougham Clarence Tears(Excused) Chris Sparacino,City of Marco Island Joseph Gagnier Duke Vasey(Excused) Mike Sheffield,CC Staff Lisa Koehler(Excused) Terry Smallwood,Everglade City(Absent) (Vacancy) ALSO PRESENT: Caroline Cilek,M.S.,Senior Planner.LDC Coordinator Robert Wiley,Floodplain Management Planning Gary McAlpin,Director,Coastal Zone Management 1 Page 252 Collier County,Florida Floodplain Management Plan March 2015 amec afIM foster wheeler 6 Co ler County 1 A 17 July 16,2014 Any persons in need of the verbatim record of the meeting mat'request a copy of the audio recording from the Collier County Growth Management Di+'rsion—Planning and Regulation building—Contact Mr.Est` lbaceta at 239-252-2400. 1. Call to Order Chairman Kurtz called the meeting to order at 10:00am and a quorum was established_ Mr.Brougham requested Staff provide the Members attendance records and ant'related policies to the Committee for information purposes. 2. Old Business a. Approval of Minutes for the 6-2-14 Meeting(Jerry Kurtz) 11r_Brougham moved to approve the minutes of June 2,2014 meeting as presented. Second bt'Mr. Gagnier. Carried unanimously 10-0. 3. Kick Off meeting for Floodplain Management Plan. (David Stroud,AMSC and Gary McAlpin) Gary McAlpin and David Stroud presented the Slideshow"Collier County FI Floodplain Management Plan KickotrMeeting,July 16,2014"highlighting the following: • The Objectives of the Plan are to: • Identify and Address Trends in Disasters(reduces costs for disaster recovery and probability for property losses). • Meet the requirements of the Disaster Mitigation Act(DMA)making the County eligible for disaster planning,disaster relief funds and ensures the community is less prone to disaster. • Improve standing in the voluntary Community Rating System(CRS)program. • The goals of the 2013 CRS Program are to reduce flood damage to insurable property, strengthen and support the insurance aspects of the National Flood Insurance Program and encourage a comprehensive approach to floodplain management. • The CRS program is a point based program with 10 classification levels which allow for increasing standards being met resulting in reduction of insurance premiums to citizens in the 'urisdiction participating in the Program. • The benefits for participating in the CRS Program are a 5"o premium discount for every 500 points achieved,improved flood protection.provision of technical assistance to communities participating_economic benefits to the local economy from an individuals insurance premium savings.etc. • The DMA Planning process is comprised of 4 Phases-Phase 1:Organizing Resources: Phase 2:Risk Assessment;Phase 3:Developing a Mitigation Plan:Phase 4:Adoption and Implementation of the Floodplain Management Plan. • Staff and consultants will be developing a draft of the Plan and present it to the Floodplain Management Committee for review and comment. The Committee requested clarification on how County Staff and consultants intend to develop the Plan. Mr.McAlpin reported: • All information is intended to be accessible on the internes in one location. Page 253 Collier County,Florida Floodplain Management Plan �. March 2015 amec foster wheeler Co ler County 1 1 7 July 16,2014 • A meeting will be held with the Committee on September 30,2014 to review and comment on the updated hazard identifications and vulnerability assessment. The goal of the meeting will be to armee on the hazard identifications and vulnerability assessment. • On November 12—13 meetings will be held to review the Mitigation Goals and Strategies. • A final Draft Plan will be made available for Committee review on January S,2015. • The Plan will be reviewed by the Collier County Planning Commission in February 2015 and forwarded to the Board of County Commissioners for consideration. • Additional Committee meetings will be held as necessary. • Development of the Plan will include input from citizens via public meetings. • A major goal of the Plan will be to improve the County's CRS rating from level 6 to level 5. Mr.Stroud noted • They will be reviewing the draft plan previously prepared and identify any of its shortfalls that need to be addressed • The Committee will be reviewing the proposed Plan in Sections as the information becomes available. • They will attempt to provide a majority of the information to be reviewed at a meeting 1 week in advance of the meeting. • During the September 30,2014 meeting(and other leading up to the January meeting), Committee members should focus on reviewing the concepts of the Section(s)or information presented as apposed to"wordsmith editing. • The goal is to have the Committee review the final plan in its entirety at the January 2015 meetig. • Staff and Consultants intend to reach out to the City of Marco Island and Naples for input. 4. Public Comments It was reported the City of Marco Island will hold an ICC Flood Venting Seminar on August 5,2_014.10— 12 am. It is open to the public 5. Schedule Next Meeting Nest Regular Meeting—Monday September 8,2014-GMD Conference Room 610—9:00am There being no further business for the good of the County,the meeting was adjourned by the order of the Chair at 11:30AM, COLLIER COUNTY FLOODPL.ALN 11L NAGENIENT COMMITTEE Chairman,Jerry Kurtz 3 Page 254 Collier County,Florida Floodplain Management Plan tas March 2015 a amec foster wheeler County Cott 16A17 July 16.2014 These Minutes were approved by the Board Chairman on .as presented .or as amended 4 Note: There is no sign-in sheet available for the July 16, 2014 FMPC Meeting. Page 255 Collier County,Florida Floodplain Management Plan �. March 2015 amec foster wheeler Copier County September 30,2014 MINUTES OF THE MEETING OF TIIE COLLIER COUNTY FLOODPLAIN MANAGEMENT PLANNING COMMITTEE 1 6 tit 7 Naples,Florida,September 30,2014 LET IT BE REMEMBERED,the Collier County Floodplain Management Planning Committee in and for the County of Collier,having conducted business herein,met on this date at 9:00 A.M. in REGULAR SESSION at the Collier County Growth Management Division Building.Conference Room#609/610,2800 N. Horseshoe Drive, Naples, Florida,with the following members present: Chairman: Jerry Kurtz,CC Staff Vice Chairman: Craig Pajer,CC Staff Kenneth Bills Rick Zyvoloski(Aft.),CC Staff Christa Carrera,City of Naples Phillip Brougham Clarence Tears Chris Sparacino,City of Marco Island Joseph Gagnier Duke Vasey Mike Sheffield,CC Staff(Excused) Lisa Koehler Terry Smallwood,Everglade City(Excused) Jon Walsh,C.C. Staff James Hale ALSO PRESENT: Caroline Cilek,M.S., LDC Manager,FPMC Staff Coordinator Gary McAlpin,Director,Coastal Zone Management William Lang,Operations Coordinator,Floodplain Management 1 Page 256 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler Cor Count1 6 A 1 7 September 30,2014 Any persons in need of the verbatim record of the meeting may request a copy of the audio recording from the Collier County Growth Management Division-Planning and Regulation building-Contact Mr.Evy Ybaceta at 239-252-2400. Chairman Kurtz called the meeting to order at 10:02am. Old Business 1. Approval of Minutes for the 6-2-14 Regular Meeting and Floodplain Management Plan Public Meeting Minutes 7-16-14(Jerry Kurtz) .'ifr. Vasey moved to approve the minutes of June 2,2014 meeting subject to the following change: • Page 3,line 7-from"...ensure Emergency Management Services fully..."to"—ensure Bureau of Emergency Services fully..." Second by Mr.Brougham Carried unanimously 10-0. Mr.Vascy: • Requested an update on the Big Cypress Basin's responsibility for conducting floodplain reviews for the County. • Recommended the term"Stakeholders,"in its relation to any aspects of the Floodplain Management Plan be defined as"taxpayers." Ms.Cilek reported the floodplain review requirements are being addressed at the Administrative level of the GMD and will provide an update in the next monthly report. Staff reported a Regular Committee meeting and Public InVormatiun Meeting was held on July 16, 2014. The public meeting minutes have been included for information purposes. The Regular Committee meeting minutes will he approved at the next meeting. Mr. Walsh arrived at 10:10am New Business 1. Updates from Floodplain Management Section:staffing,CRS 5 yr.cycle visit/White Paper and August Monthly Report(Caroline Cilek) Ms.Click presented the"Floodplain Vanal ement Section August 2014"report for information purposes and provided an update on the CRS submittal and relayed the County has not heard back from ISO on a final ranking yet. Mr. Tears arrived at 10:20am 2. Discussion of the Flood Risk Assessment and Hazard Vulnerability sections for the Floodplain Management Plan(David Stroud,Paige Halley-AMEC and Gary McAlpin) David Stroud,AMEC provided copies of Section 4-Flood Risk Assessment ol'the Floodplain Management Plan for review. He noted: 2 Page 257 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler Co ger Count ' September 30,2014 • The main purpose of the item is for the Committee to provide a recommendation on the ranking of the County's flood hazards as identified on Page 130,Table 4.1 "Flood Hazard Summary"of the report. • The hazards identified are Climate Chang and Sea Level Rise,Coastal/Canal Plosion, Dam/Levee Failure,Flood: 100/500 year,Flood:Stormwater/Localized Flooding and Hurricane and Tropical Storms(including Storm Surge). • The table also rates the Frequency of Occurrence,Spatial Extent,Potential Magnitude and Significance of the events. Power Point presentations were provided by Mr.Stroud and Ms.Hatley"(Review of the Hazard Identification and Hazard Vulnerability, Collier County Florida,September 30,2014"), Mr.Kurtz ("Overview of Collier County Planned Stormwater projects-Presentation to the Floodplain Management('ommittee September 30, 2014'). During the presentations the following was highlighted by Staff/Consultants and Committee members: • Although the Plan is a"5 year Plan,'Table 4.l identifies the hazards based on probabilities and impacts of the hazard over a 1 year period. • Sea level rise should be identified as a hazard,however the affects arc cumulative over time with minimal chance it will have a major impact over a 1 year period. • Localized flooding is a major issue and continued mapping of"hot spots-will be an essential. • Staff noted the County tracks the information on a GIS mapping system and the City of Marco Island has similar data • Many of the projects identified in Mr.Kurtz's presentation could be considered "transportation projects"which may be beneficial given the limited funding for stormwatcr projects. • Staff noted currently the County considers these neighborhood drainage projects with the purpose at this point being to idents the hazards to be addressed,not determining the funding mechanism for improvements. • Some areas currently experience sheet flow flooding at given times.(i.e.bike paths). • Staff reported this could he addressed, however these areas were designed with this condition in mind and they would be considered a low priority hazard • 'Fable 4.34 identifying Critical Facilities by Flood Zone should be reviewed as some facilities are not listed such as sewage transfer stations,etc. Mr. Brougham left at 11;07am • Protection of the floodplains ecological and environmental characteristics will be addressed in the Plan. • Septic systems and well fields could be considered a hazard given their potential failure during flooding events. The Committee reviewed the Table 4.1 -Flood Hazard Summary with the following comments noted: 1 Page 258 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler S2tty September 30.2014 • The definition of"flooding"should be amended to clarify it is events that impede the ingress and egress to critical facilities/neighborhood areas/homes.damage to structures and infrastructure.etc.as opposed to those times standing water is present in non essential areas (i.e.ponding of water in yards,etc.). • It would be advantageous to separate the table by jurisdictions within the County. • Although negatives impacts from sea level rise may not occur unless long term conditions persist,it could have a major impact on those facilities upstream that drain towards the Gulf. The Committee recommended the following rankings for those hazards identified in Table 4.1 Hazard Frequency of Spatial Extent Potential Significance Occurrence Magnitude Climate Change and Sea Highly Likely Limited Negligible Low { Level Rise LCoastalt'C'anal Bank Erosion j Highly Likely Limited Negligible Medium Dam/Levee Failure Unlikely Limited Negligible Low Flood: 1004500-year Occasional Extensive Catastrophic High Flood: 1lighly Likely Limited ! Negligible Medium Stormwater/Localized Flooding Hurricane and hopical Likely Extensive Catastrophic High Storms(including Storm Surge) The Committee recommended the Table be reorganized to provide rankings from a high priority to a low priority. Staff requested the Committee to review the Sections of the Plan provided today and submit comments back to Gail Hambright at the Coastal Zone Management Office within 2 weeks. The review by members should be prioritized as"data driven"followed by "word sntithing." 3. Public Comments None 4. Committee Correspondence Mr.Sparacino requested Staff email a copy of the PowerPoint presentation reviewed in item 2 to the Committee. Mr.Zyvoloski reported the County needs to update the record of disaster events(if an v)for years 2013—2014. 5. Scheduling of next meeting--will be focused on the Floodplain Management Plan(Gary McAlpin and Caroline Click The next meeting will be held on October 23,21114 at 10:00am 4 Page 259 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler � 16A17 colliier county September 30,2014 There being no further business for the good of the County,the meeting was adjourned by the order of the Chair at 12:03PM. COLLIER COIiNTY'F1,OODPLAIN MANAGEMENT COMMITTEE Chairman,Jerry Kurtz These Minutes were approved by the Board/Chairman on /'Z 1' /5 ,as presented i/ or as amended Note: There is no sign-in sheet available for the September 30,2014 FMPC Meeting. Page 260 Collier County,Florida Floodplain Management Plan March 2015 ► amec foster wheeler -- y/ 1,. Co -ier County I 44 Ai October 23.2014 MINUTES OF THE MEETING OF THE COLLIER COUNTY FLOODPLAIN MANAGEMENT PLANNING COMMITTEE Naples, Florida,October 23,2014 LET IT BE REMEMBERED,the Collier County Floodplain Management Planning Committee in and for the County of Collier,having conducted business herein,met on this date at 10:00 A.M. in REGULAR SESSION at the Collier County Growth Management Division Building,Conference Room#6091610,2800 N.horseshoe Drive, Naples,Florida,with the following members present: Chairman: Jerry Kurt-4 CC Staff Vice Chairman: Craig Pajer,CC Staff Kenneth 13ills(Excused) Rick Zyvoloski(Alt.),CC Staff Christa Carrera,City of Naples Phillip Brougham(Excused) Clarence Tears(Excused) Chris Sparacino,City of Marco Island Joseph Gagnier Duke Vasey Mike Sheffield,CC Staff Lisa Koehler Terry Smallwood,Everglade City(Excused) Jon Walsh.CC Staff(Absent) James Hale(Absent) ALSO PRESENT: Caroline Cilek, M.S., FPMC Staff Coordinator Gary McAlpin,Director,Coastal Zone Management William Lang,Operations Coordinator,Floodplain Management 1 Page 261 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler o ger County C , 6A17 October 23,2014 Any persons in need of the verbatim recond of the meeting may request a copy of the audio recording from the Collier County Growth Management Division-Planning and Regulation building-Contact Mr.Ely Ybaceta at 239-252-2400. Chairman Kurtz called the meeting to order at 10:37arn. Arvid Stroud,AVEC was present via telephone. Mr.MeAlpin reported the purpose of the meeting would be to address 2 items as follows: 1. Identify and address comments to the Flood Risk Assessment and the Vulnerability Assessment Documents prepared by AMEC. Flood(tisk Assessment the Committee and Staff reviewed the Section ltt pages at a time with the following comments provided: Parses 129-118 • Mr.Vasey submitted written comments for consideration titled 'Collier Soil imd Water Conservation District-Strategy.for Protecting C:'owial Collier County" He reported more scientific data is needed.especially for any coastal areas determined to be vulnerable to flood impacts. He expressed concern there is limited comment on the impacts to Emergency Services. Mr.Stroud reported the purpose of the Section is to identify the flood hazards and these comments would be considered under the Vulnerability Assessment. Ms.(:ilek from the Floodplain Management Section staff in writing dated 10+9/14 on the entire Section in order to make the plan more specific to Collier County,identify potential errors and areas for improvement. She relayed comments as the following portions of the Section were reviewed. Additional Comments during discussions; • Table 4.4)4.5-1?xplain the difference between National Climate Data Center iNCDC)and til lhl.DEIS and identify how the data is derived for the 2 different sources. P_ares 139-146 • Mr_Pajer noted there is only 1 dam listed for Collier County and any comments,if possible should he directly related to this structure. • See comments submitted by Ms.Cilck. Additional comments during discussion: • The Committee determined to utilize the(S Anny Corps of Engineers standards for sea level rise,given this is the standard used by SFWMD and Collier County Coastal Zone ,%fanagement. Any other sources for the data may be referenced for information purposes. Pate 147-157 • See comments submitted by Ms.Cilek. Page 262 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler 16 /U ?IA Co ger County October 23.2614 - Revise wording to portray a majority of Collier County flooding results from events in the All zone,not coastal flooding due to tide water intrusion. - Page 50,paragraph 3-revise wording to document topographic conditions more relative to Collier County including identifying there is no regulated floodway. - Consider amending Figure 4,9 to a profile more relative to Collier County as opposed to a generic floodplain cross section(if possible). Page 158-168 • Sec comments submitted by Ms.Cilek. • Table 4,14-expand narrative and incorporate data such as how much rainfall over a 24 hour period is required to trigger a 100 year flood event in the County. • Page 1.00-Ms.Koehler reported data should indicate the 3 canals south of 175 will be discontinued over the next 5 years. • Table 4.20-Provide a legend for the map, Public Speaker Stan Chrzanowski requested an update on the FF.MA flood maps.as it has been determined,there are some errors in the current ones adopted including identifying a large area in the eastern portion of the County as ronc X when it is in wetland area. Robert Wiley,Principal Project Manager recognizes the error and will address it in the upcoming map revisions. Vulnerability Assessment Page 180/81 • Ms.Koehler reported the Big Cypress Basin's facilities should be incorporated into the data. • Ms.alek submitted notes dated 10/15/14 and outlined her comments. • Page 179-need to identify buildings in the X and X500 flood zones. • Table 4.33 clarify impacts related to property damage vs.risk of life. • The various municipalities and Agencies should ensure all necessary facilities have been identified,especially pumping stations and their mapped locations. Public Speaker Kathy Curatoto,collier Building and Industry Association noted the Association has reviewed the documents and recognizes the need for flood protection. She expressed concern the data in the plan incorporates occurrences of highly unlikely events fir the analysis. Any related ordinances or documents developed based on the Plan should be constructed in a manner as to not negatively impact the building industry. 2. To identify locations where localized flooding affects structures through the County and Cities. The focus of this discussion will the affect on structures and not restoration programs. We will not rank or prioritize projects but will attempt to identify locations that if not maintained mare frequently affect structures. We will use this list of locationsfprojects to determine if any correlation exists between these locations and repetitive loss. We would like all participants to be prepared to discussfshare locations where this happens in your jurisdiction. 3 Page 263 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler Co rer County wY October 23.2014 Mr.MeAlpin reported: sr Staff and consultants are seeking the Committee's assistance in identifying the areas where localized flooding occurs in the County to aid in planning andfor developing mitigation measures for existing and future land uses in the region_ + Any comments deemed critical by Committee members,Staff,public,etc.need to be submitted in writing to the consultants in order to be considered. Mr.Stroud reported the term"structure"is defined as any primary structure and accessory structures available to be insured_ Public Swaiter Linda Penniman,Naples City Council Member requested an explanation on the goal of the Plan Mr.MeAlpin reported the update of the Plan is required every 5 years. The Plan is utilized to identity Hood hazards,their risks and development of related mitigation measures. The data impacts flood insurance rates assigned to the County by the National Flood Insurance Program. There being no further business for the good of the County,the meeting was adjourned by the order of the Chair at 12:16PM. COLLIER COUNTY FLOODPLAIN MANAGEMENT COMMITTEE Chairman,Terry ku These Minutes were approved by the Board/Chairman on /—Zi— j ,as presented '` ,or as amended 4 Page 264 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler Cotter County i 0 s Ii 1 7 _.....-„....„ •E rA44 'el kJI �. 1 2 Imo, 1 1 10 rz 1 Q -zo 0 x .0 v. L_ . $ I= t `A 41 42 v • _ • [i ,W U. 0 R, i I let I ii, � _ rte' ' I °ti Page 265 Collier County,Florida Floodplain Management Plan �. March 2015 amec W foster wheeler I Col ter County i e g 1 s .-r111 bib '111en 1 S '45'' U fit v Al -J" V re csE. 4t ® - 'I ®-0 40 p is CGGG 'CV ,7 r V 1. O Y 5� j �� 88 �� Y he` 1 rj; b c?#� / o I 1 E r e Li CU iv 6 C E. .'" ,I IE 'moi € i E C �y e Yl �1._ JEk(4,71 i 4 . '6'm 9. C. ,lY '57) 1; 1 -' t't6A, e -1... , _ 6 i, f li, „... C3. 05 a '+'o, ` 4 °' : .. m to v g 0 .c13 2 W 1 , .0 o Ti Ni €tsl . s ai ,'a1 els i4 a2 X Page 266 Collier County,Florida Floodplain Management Plan March 2015 amec i 1* foster wheeler Cor County 16A17 November 19,2014 MINUTES OF THE MEETING OF THE COLLIER COUNTY FLOODPLAIN MANAGEMENT PLANNING COMMITTEE Naples,Florida,November 19,2014 LET IT BE REMEMBERED,the Collier County Floodplain Management Planning Committee in and for the County of Collier,having conducted business herein,met on this date at 1:00 RM.in REGULAR SESSION at the Collier County Risk Management Training Room located at 3311TamiamI Trail E.,Naples,Florida,with the following members present: Chairman: Jerry Kurtz,CC Staff Vice Chairman: Craig Pajer,CC Staff Kenneth Bills Rick Zyvoloski(Alt.),CC Staff Christa Carrera,City of Naples Phillip Brougham(Excused) Clarence Tears(Excused) Chris Sparacino,City of Marco Island Joseph Gagnicr Duke Vasey(Excused) Mike Sheffield.CC Staff Lisa Koehler Raquel Pines,Everglade City Jon Walsh,CC Staff(Excused) James Hale ALSO PRESENT: Caroline Cilek,M.S.,FPMC Staff Coordinator Gary McAlpin,Director,Coastal Zone Management William Lang,Operations Coordinator,Floodplain Management 1 Page 267 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler Co ger County 16A17 November 19,2014 Any persons in need of the verbatim record of the meeting may request a copy of the audio recording from the Collier Count}Growth Management Divi!ion—Planning and Regulation building- Contact Mr.Eu Ybacrta at 239-252-2400. Chairman Kurtz called the meeting to order at 1108pin and a quorum was established. Staff provided 3 handouts for the meeting: "Goal Setting: "The Mitigation Strategy"and"Past Mitigations update Strategy"for information purposes. David Stroud and Amy Crowley of AMEC,consultants engaged to assist in developing the updated Floodplain Management Plan, Mr.Stroud reported the purpose of the meeting was to develop the goals of the 2015 Floodplain Management Plan, He noted: • The "Goal Setting"handout contained the"Goals front the 20141 Floodplain%lrmagement Plan"and the "Goals from the"Drq{l 2015 Local,tiitigation Strategy(EMS)"prepared by the local Mitigation Strategy Work Group through the Bureau of Emergency Management Services. • The 2010 Floodplain Management Plan contained 2 goals.and he recommended the updated plan have between 3—4 goals. • The goals need to be broad based relative to the impacts of flout!hazards from which a series of objectives will be developed to assist in achieving the goals. • 'lite goals must address the following 6 mitigation strategies: • Prevention • Emergency Services • Property Protection • Natural Resource Protection a Structural Projects • Public Information • If two projects can be assigned to each of the 6 mitigation strategies(with the exception of Natural Resource Protection)the County will receive additional points towards the Community Rating System administered by the National Flood Insurance Program,potentially lowering insurance rates for policy holders in the County. In order to develop the goals the Committee reviewed the goals of the 2010 Floodplain Management Plan and the Draft 2015 Local Mitigation Strategy and undertook an exercise in which each member and Staff answered the question"What would k+rtu like to see most in Collier County's future''" Each individual provided_3 responses to the questions which were tallied and prioritized into the following general areas to he addressed- 1. .Stormwater. 2. Ecennomrr 3. Outreach 4. Recreation Open Space 5. Water Quality 6/7/8 Floo ding:infrastrucrur,ef'Hoaxing Page 268 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler Co ger Count y 16A17 November 19,2014 A similar exercise was conducted whereby the question"What should he the goals of our mitigation program?"was posed. The results were tallied into the following prioritized categories: 1. Critical Fuc dines 2. Protect Wetlands 3. Repetitive Loss 4. Education=flatreach 5. Residents health Safety and Welfare 6. Reduce Flooding '. Leverage State arm Federal Partners Post Disaster 9. Water Quality 10. Improved Flood/Rain Management 11. Growth Puns for Growth 12 Ensure future development does not worsen flooding conditions- Based on the results of the exercises,the Committee developed the Hallowing preliminary goals for the 2015 Floodplain Management Plan. 1. Reduce vulnerability and/or exposure to flood hazards in order to protect the health,safety and welfare of residents and guests. 2. Encourage property owners to protect their property from flood hazards through education and outreach measures. 1. Reduce the vulnerability of critical facilities and infrastructure from the effects of'flood hazards. 4. Protect natural resources by employing watershed based approaches that balance environmental, economic and engineering considerations. 5. Minimize adverse impacts to surrounding areas and watershed functions. Staff and consultants reported they would develop a set of objectives to help achieve the goals and provide them Liar review hy the Committee. They noted the goals could be revised as they are still in preliminary stage. Mr.Stroud provided a chart on 26 Past Mitigation Actions as identified in the 2010 Floodplain Management Plan and requested Staff to update the status of the strategies("completed,ongoing,not yet started or for action in the 2014 FM?update")so a determination can be made on if they need to be incorporated into the 2015 Floodplain Management Plan. There being no further business for the good of the Count),the meeting was adjourned by the order of the Chair at 3:40PM, COLLIER COUNTV FLOODPLAIN MANAGEMENT COMMITTEE Page 269 Collier County,Florida Floodplain Management Plan March 2015 ► amec foster wheeler Co *er County 16A17 6 A November 19,2014 s'VA-4(117' -t—t Chairman,Jerry Kurtz These Minutes were approved by the Board/Chairman on /-„2/-f . presented ..r ,or as amended 4 Page 270 Collier County,Florida Floodplain Management Plan March 2015 ameciftV foster wheeler 16A17 Co ler County November 20,2014 MINUTES OF THE MEETING OF THE COLLIER COUNTY FLOODPLAIN MANAGEMENT PLANNING COMMITTEE Naples,Florida,November 20th,2014 LET IT BE REMEMBERED.the Collier County Floodplain Management Planning Committee in and for the County of Collier,having conducted business herein,met on this date at 1:00 P.M.in REGULAR SESSION at the Collier County Government Center, Risk Management Training Room.3311 Tamianti Trail F.,Naples,Florida,with the following members present: Chairman:Jerry Kurtz,CC Staff Vice Chairman:Craig Pajer,CC Staff Kenneth Bills Rick Zyvoloski(Alt.),CC Staff Christa Carrera,City of Naples Chris Sparacino,City of Marco Island Mike Sheffield,CC Staff Lisa Koehler Raquel Pines,Everglades City James Hale ALSO PRESENT: Caroline Cilek,M.S.,LDC Manager,FPMC Staff Coordinator Gary McAlpin,Director,Coastal Zone Management Robert Wiley,Project Manager,Growth Management Division This meeting was not recorded. Chairman Kurtz called the meeting to order at 1:00 PM. Old Business 1. No old business was Conducted. New Busine48 1. Review of the November 1S"FMPC Meeting including a tier iew of the rcvi,ed goals for the 2015 plan update. 1 Page 271 Collier County,Florida Floodplain Management Plan March 2015 amec 4 foster wheeler Cor Count 16A17y November 20.20i4 2. Discussion of the Flood Risk Assessment and Hazard Vulnerability sections for the Floodplain Management Plan(David Stroud and Amy Crowley,-AMEC and Gary McAlpin) David Stroud,AMF:C provided copies to the FMPC of a handout of the six FEMA Mitigation Categories which all mitigation projects must be placed. This handout outlined the following six mitigation categories: • Preventative Measures and example projects • Property Protection Measures and example projects • Natural Resource Protection Measures and example projects • Emergency Services and example projects • Structural Flood Control Projects and examples • Public Information Measures and example projects A Power Point presentation was provided by Mr.Stroud"(Collier County Mitigation Measure Development Guide November 18,2014'). Mr.Stroud then provided the FMPC a copy of the mitigation projects from the 2008 Floodplain Management Plan and the status of those projects. During the next hour and half,Amy Crowley and David Stroud facilitated a session of determining new mitigation projects: • The FMPC used the FEMA STAPLPE Process and can up with the following prioritization process for new projects; Short Range=Project should be completed in less than one year Medium Range Project should be completed in two to three years Long Range=Project should be completed in more than four years • The new projects need to be in alignment with the goals that were established for the plan • The new projects which are developed must fit into the six mitigation Mr.Stroud and Ms.Crowley continued to facilitate the development of new mitigation projects. The FMPC came up with 13 new mitigation projects that will be further developed by AMEC and Collier County staff; Those projects are: • Develop a Program for Public Information(PPI)involving Collier County,Marco Island, Naples and Everglades City • Provide flood insurance information to residents and local business owners • Construction of the Belle Meade Diversion project(reduction of flow from the Golden Gate Canal) • Develop a professional landscaper certification program • Utilize pollutant screening baskets in catch basins • Develop a Low Impact Development(LID)Manual • Construction of the Southwestern Protection Levee as part of the Picayune Strand Restoration Project • Identify and prioritize critical facilities at risk to flooding Page 272 Collier County,Florida Floodplain Management Plan March 2015 arae ,. foster wheeler Cor County 16A17 ....„.„,,,, November 20.2014 • Provide education/outreach for the Hood Watch Program(BCB Tool) • Maintain the localized flooding"bubble map" • Review.the LDC and investigate impacts to the lloodplaintrecommend improvements to the LDC manual as appropriate • Collect I IDAR data • Provide education/outreach for non-point source pollution prevention 3. Public Comments None 4. Scheduling of next meeting-will be focused on reviewing the draft Floodplain Management Plan The next meeting will be held on December lb,2014 at 10:00 AM, An additional public meeting will be held at 5:00 PM There being no further business for the good of the County,the meeting was adjourned by the order of the Chair at 4:5OPM. COLLIER COUNTY FLOODPLAIN MANAGEMENT COMMITTEE Ld4 SA Chairman,Jerry Kurtz. These Minutes were approved by the Board/Chairtnan on /-Z/-(J ,as presented .or as amended 3 Page 273 Collier County,Florida Floodplain Management Plan ] March 2015 amec-a- foster wheeler Coir County y -iarN Eli ! ,...,) m. ,,,, ,,...,,, s-,, ,... _ ... '41. I' 't T.,, IA. m "4.14 g m w g _'I alle 4 ! " IL, zt. c-'''i 1` ti� tiL .. {; " W 0 cuV 4,0 al E 77, _�/p� °J w 14 E $ J § 1 qM/ _ei .> 41 ' s q }+ L Iv 5 C ` r � d , tma !6 a O. ar2;,:. x O ;, a + J rglt` a Z g T3 113 r'1 ' �' .Z ,rn ii�1 C "~ �~�1 2 u c a a C 0 E r" T I d l "7+, , le 'C'.,' : g 'r \il SQ 12 I fr - a ..e VI s- vol C CT1 ' { v 2 R a `2 E rillyf a ` 5 it,- .1 1 i ''�l ij ' -1 r hE m 4 ...E Yl el i , c.: . • ii II) 'a,: E 1' g -.t. ni , 0 X 1 \ r ''''. 1 ti'''"1/4‘ 3 .: -I 02 il I a Page 274 Collier County,Florida Floodplain Management Plan March 2015 amec a foster wheeler j suntp y .4� j i ! O g C ° as c i wd 2 12 illX 1 I :s1 7 A C uug is N N�• "i' 'L i Eb � '4•404 '4-4,�' t s e flo -‘,..v. i C fv LI '' y o• cEE la i 112Z r=.; n 131 Q N e N jiH i DII .• „ Y >• .� C .� �a `i 0 2.c w o O m b T2s c Ina C In X •• i .S: 8. o >: IP7C Cor County (t7I 11 I 7 December 16.2014 MINUTES OF THE MEETING OF THE COLLIER COUNTY FLOODPLAIN MANAGEMENT PLANNING COMMITTEE Naples,Florida,December 16.2014 LET IT BE REMEMBERED,the Collier County Floodplain Management Planning Committee in and for the County of Collier,having conducted business herein,met on this date at 9:00 A.M.in REGULAR SESSION at the Collier County Risk Management Training Room located at 3311Tamiami Trail E.,Naples,Florida,with the following members present: Chairman: Jerry Kurtz,CC Staff(Absent) Vice Chairman: Craig Pajer,CC Staff Kenneth Bills Rick Zyvoloski(Alt),CC Staff Christa Carrera,City of Naples Phillip Brougham Clarence Tears(Excused) Chris Sparacino,City of Marco Island Joseph Gagnier Duke Vasey Mike Sheffield,CC Staff Lisa Koehler Jon Walsh,CC Staff(Absent) James Hale(Excused) ALSO PRESENT: Caroline Cilek,M.S.,FMPC Staff Coordinator Gary McAlpin,Director.Coastal Zone Management William Lang,Operations Coordinator,Floodplain Management Robert Wiley,Principal Project Manager Connie Deane,Community Liaison Page 276 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler Cor County December 16,2014 Any persons in need of the verbatim record of the meeting may request a copy of the audio recording from the Collier County Growth Management Division—Planning and Regulation building-Contact Mr.Ery Ybaceta at 2399--252-2400. The meeting was called to order at 10:00am. Mr.McAlpin presented a Draft of the proposed"Collier County Floodplain Management Plan"and related Executive Summary dated December 2014 for information purposes. He noted: • The purpose(lithe meeting is fur the Committee to hear a presentation by consultants on the Plan. • During the presentation Members may pose questions and preside any necessary comments to Staff. • Staff will also accept comments in writing following today's meeting. • The Plan is scheduled to be heard by the Collier County Planning Commission on January 15,2015. • There will be a public meeting tonight.December 16,2014 at 5:15 pin to solicit comments from any interested community member. David Stroud,AMIFC,(consultant charged with assisting the County in developing the Plan)presented the PowerPoint "Review of the Draft Management Plan..Coilier County Florida.December 16.201 4" highlighting the following: • Staff began developing the Plan in July of 2014 and expects the Board of County Commissioners to review the Plan in February of 2015. • The major participants were Collier County.the City of Naples and the City of Marco Island. • Everglade City was a minor participant as they do not participate in the National Flood Insurance Program Community Rating System(CRS). • The Plan was developed by Staff based on data collection and analysis,review of the previous Plan, input from Committee Members,input from the public,coordination with outside Agencies.etc. • The Plan is intended to assess the County's risks associated with flood events so mitigation measures may be implemented to reduce the County's exposure to the hazards. • The Plan consists of 7 Chapters and 3 Appendices and identifies 5 major goals: • Reduce vulnerability and/or exposure to flood hazards in order to protect the health.safety and welfare of residents and guests. • Encourage property owners to protect their property fronsflood hazards through education and outreach measures. • Reduce the vulnerability of critical facilities and infrastructure from the erects of floor/ hazards. • Protect natural resources by employing watershed based approaches that balance environmental,economic and engineering considerations. • Minimize adverse impacts to surrounding areas and watershed functions, • The Plan will be implemented through a detailed set of objectives designed to achieve the goals set forth. • The Floodplain Management Planning Committee(FMPC)will meet quarterly to evaluate implementation of the Plan and propose any revisions as necessary. • the Plan will be updated every 5 years. Stall'noted: • Section 5,5—`New 2015 Flood Hazard Mitigations Actions"identifies 13 mitigation measures. 2 Page 277 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler cer count 16A17 County ol December 16.2014 • The measures include Public Outreach and Education Programs,structural improvements projects,certifications programs for various industries(i.e.landscape maintenance).Land Development Code.Amendments,developing a Low impact Development manual,etc. • The details associated with the individual actions such as assigning responsibilities for the items. identifying funding sources,establishing timelines for implementation.etc.still need to be identified by Staff. • Staff anticipates the Section will be complete by January 2.2015. • They queried the Committee on how they wanted to provide comments on the Section once it is completed. • The comments could be provided at a Committee meeting or submitted in writing by!Members. The Committee requested Staff to provide the Section to them by January 2,2015 whereby any Member nary submit written comments on the Section by a deadline established by Stuff. There being no further business for the good of the County,the meeting was adjourned by the order of the Chair at 11:20.4M. COLLIER(1)1 NTY FLOODPLAIN MANAGEMENT PLANNING COMMITTEE Chairman,Jerry Kurtz These Minutes were approved by the lioardiChairman on I—2 (_f 5 .as presented .or as amended ................... 3 Page 278 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler A i 7 Co ler County l6AiI _...„..„.„..... , i 1 i � , HP E E c a Q v u 4 ` € 00 .. 9 a 141 1 , �, u o' E E m r- - -0 vi a .. file: 0 el. i-Li a , til .. 6 . o is, O 1 I ol ur I rY ` � a_ <G 1, !1n % ' ) X i , p e to v30 r 1 ;' _ 1 2 ifl x 6 04 �'" a k IE s .C -Di tieE 1 E , [ �e R 15 111 LL O W v 1 Co 4J± . ! -E Ml 1' Vin ID i 2, a ,. § 11,1 i® jai .1 ‘,/. I 2 w as i 1 k I o v Iw tom, % ' .0% 1 x. ',..1[ \ c y.+, ti4 i s' z ' ‘Ci4 , ' \\ 1 Page 279 Collier County,Florida Floodplain Management Plan ' March 2015 amec foster wheeler Co ler County 1 6 A 17 A f a.g 2 v •w, III e P mz £ m m sr i C $C } , 1 E ti, irt _ r 'rte c 4 Q m 2 � --4^' J _. _._. N trI R to ? 8, E o c eri 1 �f $ 82., l , GI w , a. c Ni ._ aVG , f 4 • 1 iii YYII G A , ti �Yyi Ca i i # Page 280 Collier County,Florida Floodplain Management Plan 1 March 2015 amec foster wheeler Co -rer County..........„.......„.......„.....„..., Planning Step 2: Involve the Public Table A-3: Public Meeting Dates Meeting Meeting Topic Meeting Date Meeting Locations Type Public 1) Introduction to DMA,CRS and the planning Collier County Growth Meeting#1 process July 16,2014 Management Division 2) Introduction to hazard identification Office 1) Review complete "Draft" Floodplain Management Collier County Public Plan December 16, Government Center Risk Meeting#2 2014 Management Training 2) Solicit comments and feedback from the public Room Public Meeting Pictures and Meeting Minutes .. : _'��-r,""......►— ._-•tet_. -!/'.,,,/"" ' prti owl i f ,. __ sif1F' ?'*nc December 16,2014 Public Meeting Page 281 Collier County,Florida Floodplain Management Plan March 2015 4 amec foster wheeler Co rer Count y u. bA17 July 16,2014 ?MUTES FOR THE COLLIER COUNTY FLOODPLAIN MANAGEMENT PLAN PUBLIC MEETING Naples,Florida,July 16.2014 LET IT BE REMEMBERED Collier County Held a Public Meeting for the Floodplain Management Plan in and for the County of Collier on this date at 5:15 P.M.at the Collier County Growth Management Division Building,Conference Room=609/610, 2800 N. Horseshoe Drive,Naples,Florida,with the following Staff Members present: STAFF PRESENT: Gary Mc..Alpin,Director.Coastal Zone Management Caroline Click,M.S., Senior Planner.LDC Coordinator Robert Wiley.Floodplain Management Planning Jerry Kurtz,Stormwater and Environmental Planning 1 Page 282 Collier County,Florida Floodplain Management Plan March 2015 1710 amec foster wheeler Co ver County16A17 Jul;-16,2014 .i nit'Fe'sons in need of the.'e!batim record of the meeting may request a cops•of the audio recording from the Collier C mint) Growth!Manageutent DiVrsiorr—Planning and Regulation building—Contact Mr.Ely Thaceta at 23.9-252-2400. 1. Call to Order Mr.McAlpin called the meeting to o:der a: 2 pm. He reported the purpose of the meeting was t provide information to.and garner info ma-io:iron:he public on preparation cf the Floodplain Management Plan. 2. "Kick Of meeting for Floodplain Management Plan(David Stroud,AMEC and Gary-licAlpin) Gary McAlpin and David Stroud presented the Slideshow"Collier County Fl Floodplain'.fanagement Flan Kicgv 'tleering.July 16,2014'highlighting the following: • The Objectives of the Plan are to: • Identify and Address Trends in Disasters(reduces costs for disaster recovery and probability for property losses). • Meet the requirements of the Disaster Mitigation Act(DMA)making the County eligible for disaster planning,disaster relief funds and ensures the community is less prone to disaster. • Improve standing in the voluntary Community Rating System(CRS)program. • The goals of the 2013 CRS Program are to reduce flood damage to insurable property, strengthen and support the insurance aspects of the National Flood Insurance Program and encourage a comprehensive approach to floodplain management. • The CRS program is a point based program with 10 classification levels which allow-for increasing standards being met resulting in reduction of insurance premiums to citizens in the jurisdiction participating in the Program. • The benefits for participating in the CRS Program are a 5°•d premium discount for every 500 points achieved,improved flood protection.provision of technical assistance to communities participating.economic benefits to the local economy from an individuals insurance premium savings.etc. • The DMA Planning process is comprised of 4 Phases-Phase 1:Organizing Resources: Phase 2:Risk Assessment:Phase 3:Developing a Mitigation Plan:Phase 4: Adoption and Implementation of the Floodplain Management Plan. Mr.McAlpin reported: • Development of the Plan veil include input from the Floodplain Management Committee. • A meeting will be held with the Committee on September 30,2014 to review and comment on the updated hazard idenafic azons and vulnerability assessment. The goal of the meeting will be to agree on to hazard identifications and vulnerability assessment. • On November 1_-13.2014 meetings will be held to review the Mitigation Goals and Strategies. • A final Draf:pian will be made available for review on Januar-S.2015. • The Plan v-i 1 be reviewed by the Collier County Planning C omn ission in February 2015 and for.varded to the Board of County Commissioners for consideration Page 283 Collier County,Florida Floodplain Management Plan y March 2015 amec foster wheeler 40. 4 Co ler County July 16.2014 3. Public Comments Brad Estes queried if the process will address the failure and`or maintenance of the existing neighborhood stormwater systems and areas where there are no systems. Mr.Stroud reported existing"hot spots"of continual flooding conditions will be identified and determination wird need to be made for any connection between these conditions and property damage. There being no further business for the good of the County,the meeting was adjourned at 6:0P.M. 3 Page 284 Collier County,Florida Floodplain Management Plan March 2015 erne: 4— foster wheeler ST& ty 1 6 17 December 16.2014 MINUTES FOR THE COLLIER COUNTY FLOODPLAIN MANAGEMENT PLAN PUBLIC MEETING Naples,Florida.December 16,2014 LET IT BE REMEMBERED Collier County Held a Public Information Meeting for the Floodplain Management Plan in and for the County of Collier on this date at 5:15 P.M.at the Collier County Collier County Risk Management Training Room located at 3311 Tamiami Trail E.,Naples,Florida,with the following Staff Members present: STAFF PRESENT: Caroline Cilek,M.S..FMPC Staff Coordinator Gary McAlpin,Director,Coastal Zone Management Robert Wiley,Principal Project Manager Connie Deane,Community Liaison 1 Page 285 Collier County,Florida Floodplain Management Plan V. March 2015 amec foster wheeler Colicr County I 6 A 1 7 December 16,2014 Any persons in need of the verbatim record of the meeting mat'request a cops'of the audio recording from the Collier County Growth Management Division—Planning and Regulation building—Contact Mr.Ely Fbaceta at 239-252-2400. Mr.McAlpin called the meeting to order at 5:15pm. He noted: • The purpose of the meeting is to provide information to,and gamer information from the public on a draft of the Floodplain Management Plan dated December 2014. • A copy of the Plan and PowerPoint presentation presented tonight is available the Flccdpiain Management page on the County's website. David Stroud.21MEC.(consultant charged with assisting the County in developing the Plan)presented the PowerPoint "Review of the Draft Management Plan—Collier Counts Florida,December 16 2014" highlighting the following: • Staff began developing the Plan in July of 2014 with adoption of the Plan anticipated for February of 2015. • The maior participants were Collier County,the City of Naples and the City of Marco Island. • Everglade City was a minor participant as they do not participate in the National Flood Insurance Program Community Rating System(CRS). • The Plan was developed by Staff and consultants through data collection and analysis,review of the previously adopted Plan.input from the Floodplain Management Planning Committee Members,input from the public.coordination with outside agencies,etc. • The Plan is intended to assess the hazards and risks to the County from flood events so mitigation strategies may be implemented to reduce the County's exposure to the risks and hazards. • The County is subject to two potential major events: those related to coastal flooding as a result of storm surge and those related to inland flooding from rain events. • The Plan consists of 7 Chapters and 3 Appendices and identifies 5 major goals. • Reduce vulnerability and/or e.posure to flood hazards in order to protect the health,safety and welfare of residents and guests. • Encourage property owners to protect their property from flood hazards through education and outreach measures. • Reduce the vulnerability of critical facilities and infi-asn-uctur•e front the effects offload hazards. • Protect natural resources by employing watershed based approaches that balance environmental,economic and engineering considerations. • lfinimize adverse impacts to surrounding areas and watershed functions. • To achieve the goals,the Plan will be implemented through a detailed set of objectives. • The plan will aid in reducing insurance premiums for many property owners m the County who hold flood insurance policies. Mr.McAlpin reported the Floodplain Management Planning Committee meetings where the Plan was discussed was open to the public and a"survey"was developed and disseminated to gamer input from community members. The measures provided an avenue for individuals to participate in the process associated with developing the Plan. Individuals may attend meetings ando:submit comments in writing throughout the process. Page 286 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler Co ger County December 16,2014 Public discussion occurred on who is:esponsibe to maintain a private deve':cpment-s stormwater system given they are an integral component of the regions s:onnwater management system. Staff reported the maintenance is not a Part of the County C'ap€:a:Program and is the responsibility of the private landowners. There being no fila her business for the good of the Connry,the Meeting was adponrned at 6:26P.11 3 Page 287 Collier County,Florida Floodplain Management Plan March 2015 amecillM foster wheeler Co ler County 1 V ? Public Meeting Advertisements in Local Newspaper PUBLIC NOTICE PUBLIC NOTICE PUBLIC NOTICE Floodplain Management Plan Development Public Information Meeting Wednesday,July 16,2014•5:15 p.m.to 7 p.m. Growth Management Division-Planning and Regulation,Rooms 609/610, 2800 North Horseshoe Drive,Naples,FL 34104 Collier County is in the process of updating its Floodplain Management Plan as a requirement to maintain eligibility for Federal Emergency Management Agency(FEMA)federal disaster funding and to increase credit In the Community Rating System(CRS)Program.The county would like public participation. knowledge and feedback throughout the planning process. Individuals and organizations with data relating to the flooding hazards affecting Collier County including stormwater flooding. coastal flooding, severe storms. repetitive flooding. etc.. are asked to provide input into the planning process and the updating of the hazard identification and risk assessment portion of the plan. • There wIt be a formal presentation followed by an cpportunity for attendees to ask questions. • All members of the public wanting to learn more about the Floodplain Management process are welcome to attend. • Additional meetings planned by the Floodplain Management Committee will b«posted on the Collier County web calendar at ur vuw.collergov.net!GMDcalendar Two or more members of the Board of County Commissioners(BCC) may be present and may participate at this public information meeting.The subject matter of this meeting may be an item for discussion and action at a future BCC meeting. For more information call 239-252-8192. Anyone who requires an auxiliary aid or service for effective communication,or other reasonable accommodations in order to participate in this proceeding.should contact the Collier Count/ Facilities Management Department located at 3335 Tamiami Trail East,Naples.Florida 34112.or 239-252-6380 as soon as possible,but no later than 48 hours before the scheduled event.Such reasonable accommodations will be provided at no cost to the individual. No,4110066a .04 6 11 ISIS Naples Daily News–July 6 and July 13,2014 PUBLIC NOTICE PUBLIC NOTICE PUBLIC NOTICE Floodplain Management "DRAFT" Plan Review Public Information Meeting Tuesday,Dec.16,2014•5:15 p.m. Collier County Risk Management Training Room,Collier County 1 Government Center,3311 Tamiami Trail E.,Naples,FL 34112 li Collier County is in the process of updating its Floodplain Management Ran as a requirement to maintain eligibility for Federal Emergency Management Agency(FEMA)federal disaster funding and to increase credit in the Community Rating System(CRS)Program.The county,working with the public and local stakeholders over the past five months,has developed a"DRAFT'Floodplain Management Plan. The county is soliciting public participation,knowledge and feedback in the review of this plan. Individuals and organizations with data relating to the flooding hazards, stormwater flooding,coastal flooding,severe storms,repetitive flooding,and loss prevention are asked to provide input into the DRAFT Floodplain Management Plan. •There will be a formal presentation followed by an opportunity for attendees to ask questions and discuss topics. •All members of the public wanting to learn more about the Floodplain Management plan and process are welcome to attend. •Additional meetings planned by the Floodplain Management Committee will be posted on the Collier County web calendar at www.colliergov.net/GMDcalendar Two or more members of the Board of County Commissioners(BCC)may be present and may participate at this public information meeting.The subject matter of this meeting may be an item for discussion and action ata future BCC meeting. For more information call 239-252-8192. Anyone who requires an auldliary aid or service for effective communication.or other reasonable accommodations in order to participate in this proceeding should contact the Colier County Facilites Management Department located at 3335 Tamiami Trail E..Naples.Florida 34112 or 239-252-8380 as soon as possible.but no later than 48 hours before the scheduled event.Such reasonable accommodations will be provided at no cost to the individual. No.231123502 0.e0mbo,7.14.2014 Naples Daily News–December 7 and December 14,2014 Page 288 Collier County,Florida Floodplain Management Plan March 2015 _`- amec foster wheeler r County C oft' 1 6 A 17 News Releases, Public Notices, Meeting Minutes, Up-coming Meeting Dates/Agendas and Meeting Presentations posted on Collier County's website • News Releases 7)16/2004 Committee Meeting 7/16/2004 Public Information Meeting(Released on 6/25.2014) 7/1612004 Public Information Meeting(Released on 7/2/2014) 1'1612014 Floodplain Management Plan Survey • Public Notices Wednesday,July 16,2014 at 10 a.m.(Committee Meeting) Wednesday,July 16,2014 at 5:15 p.m.(Public Information Meeting) 7,:esclay.September 30,2014 at 10:00 a.m.(Committee Meeting) Wednesday,November 19 and Thursday. November 20,2014 at 1:00 p.m.(Committee Meeting) Tuesday,December 16,2014 at 10:00 a.m.(Committee Meeting) Tuesday,December 16,2014 at 5:00 p.m.(Public Information Meeting) Thursday,January 8,2015,at 10:00 a.m.(Committee Meeting) Thursday,January 8,2015 at 5:15 p.m.(Public Information Meeting) • Meeting Minutes Monday,June 2,2014 at 9:00 a.m.(Committee Meeting) Wednesday,July 16,2014 at 10:00 am (Committee Meeting) Wednesday,July 16,2014 at 5:15 p.m.(Public Information Meeting) Tuesday,September 30,2014 at 10:00 a.m.(Committee Meeting) Wednesday, November 19,2014 at 1:00 p.m.(Committee Meeting) Thursday,November 20,2014 at 1:00 p.m.(Committee Meeting) Thursday,November 13,2014 at 10:00 a.m.(Committee Meeting) Thursday,January 8,2015,at 10:00 a.m.(Committee Meeting) Thursday,January 8,2015 at 5:15 p.m.(Public Information Meeting) • Uo-coming Meeting Dates and Agendas Wednesday,duly '5 2014 at 10:00 arm(Committee Meeting) Wednesday,July 16,2014 at 5:15 p.m.(Public Information Meeting) Tuesday,September 30,2014 at 10:00 am.(Committee Meeting) Wednesday,November 19 and Thursday,November 20,2014 at 1:00 p.m.(Committee Meeting) Thursday,January 8,2015,at 10:00 a.m.(Committee Meeting) Thursday,January 8,2015 at 5:15 p.m.(Public Information Meeting) • Meeting Presentations 7/16/2014 Committee Meeting MEC Presentation 9/30/2014 Committee Meeting Floodplain Management Section-August 2014 9/30/2014 Committee Meeting Flood Risk Assessment 9/30/2014 Committee Meeting Vulnerability Assessment 9)30/2014 Review 01the Hazard Identification&Hazard Vulnerability 11/19&2012014 Floodplain Meeting E-mail 11/19/2014 Collier County Existing Goals -.22,2c—A Or re- 'Ito 37 cn Steateci: ,Trent Guide Page 289 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler Co r County16A17 1St Newspaper Article in Naples Daily News on July 16, 2014 Collier County looking to help residents lower flood insurance rates BY:John Osborne POSTED:s:oi PM.Jul i6,2014 UPDATED:S 45 PM.Jul i6.2034 TAG:local MEWS lY goverment 4114011111* 431-0,h C P'TIDN A A2 Naples.Fla.-Collier County wants to be ready if disaster strikes and ASHARES help residents in the unincorporated areas reduce their flood insurance rates at the same time. f Vir About a dozen people turned out for a presentation Wednesday night of the floodplain management plan that will likely go before commissioners for final approval at the end of February. Page 290 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler , ;,,,, Sunt . ,„. , " .. y David Stroud,a county consultant experienced in Federal Emergency said a "Were always looking for ways to improve our flood insurance and to Management Agency(FEMA)planning requirements, program connected to the plan could help some Collier residents obtain lowerhelp with the costs,'he said."The program sounds like it could help, flood insurance in return for improved flood protection measures but I don't want to say,Yeah,great,let's do it,'if its not going to help.What I heard tonight sounds pretty good? throughout the count-. Stroud said participating in the Community Rating System(CRS)—a Wednesdays meeting will be followed by similar information voluntary,FEMA incentive program that discounts flood insurance meetings over the next four or five months,McAlpin said. premiums as a result of community actions that meet CRS goals, "The goal is to update the public on the process and to solicit public including reducing flood damage to insurable property—would be a input,knowledge and response to the floodplain management boon to the local economy. process,"he said.'We'd definitely like the public's input into this," "There are 52,000 flood insurance policies in unincorporated Collier County,and this program reduces the price people would pay for McAlpin said the next two meetings would be scheduled for Sept 30 flood insurance,which offsets the cost of improving flood protection," and Nov.u,with the emphasis on updating hazard identification, he said."If you're not spending that money on flood insurance,you're vulnerability assessment and mitigation goals and strategies. buying dinner,you're putting tires on your car and you're improving "As we move forward with this plan development,we will put your house,so that money stays in the community-." updated information on the website,"he said. Strand said some of the more vulnerable areas of unincorporated For more information,visit w ww.colliergov.net. Collier could see an average savings of$121 on flood insurance premiums,while those in less-vulnerable areas could keep an extra Copyright 2014 Gipps media,Mc.All riffs reserved_This material may not be published. $96 in their pockets. broadcast,rewritten.or redlstribored_ "As the population grows,more people want to live next to the water Print this article Back to Top for recreation and other purposes,'he said.'Since there's more people living in hazardous areas these days than ever before,there's a great exposure to risk of lives,property and infrastructure." Stroud said improvements could include drainage improvement projects,flooding studies and the elevation of certain at-risk structures. "We haven't gotten to the point where we've identified the projects, but we do know federal grant programs typically feature a 75 percent, 25 percent split of costs,with the federal government paying 75 percent,"he said. County Coastal Zone Manager Gary McAlpin said it would be premature to discuss numbers at this point. East Naples resident Jack Cole,who works as a property manager for a small homeowners association,"said the allure of lower premiums drew him to Wednesday's meeting, Page 291 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler CotCount 16 /ti ? County 2nd Newspaper Article in Naples Daily News on January 31, 2015 Collier's flwd plan to be updated Daft Plows stiff from disasters. The floodplain manage- ul Collier County planners ment plan is updated every will update the area's flood- 5 years.Commissioners are ry plain management plan to expected to review and ap- `'�..keep the county eligible for prove the new plan Feb.24. federal disaster money. A draft of the plan is avail- The plan identifies the able at ww'.Colliergov. risks a_hurricanes, sea- net/floodp . Ian. level rise. erosion and For more ormation, floods and aims to protect call land development code homes, vulnerable infra- manager Caroline Cilek at structure and development 239-252-2485. Page 292 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler Ccitt r County 16A17 Collier County CCTV Schedule Monday Tuesday 'Wednesday Thursday Friday Saturday Sunday July 14 July 15 July le July 17 July 18 July 18 July 23 2314 2314 2314 2314 2114 2314 2314 Midnightto8:00avn Bulletin Board 8:33am Bulletin Bulletin Bulletin Bulletin Bulletin Bulletin Bulletin 7:00am Board Board Board Board Board Board Board 8:33am Happy Tails 8:30an Collier Recap 9:33am Board Board Contractors Planning Code Planning Contractors 9:30am of County Of County Licensing Commission Erbroemert Commission Licensing 13:33am OommBattlers Corn missi nes Board Board 10:30am Regular Special Regular 11:33am Regular Budget Lire Meeting Magistrate Meeting Replay 11:30am Meeting Hearing 1<^^o^ 7-8-14 Live Live Replay 7-18-14 12:30pm Replay Replay 7-17-14 1:33pm Happy Tails 1:30pm Storm Ready 2:33rxr i5f'ate ay 2:30pm ::^tolc Stria; 3:33pm Happy Tails Happy Tails 3:30pm Recap Recap 4:33c'r Or Scene LWV Sce^s LWV 0'Sce^e 4:30pm Storm Rewyr School Sbrm Y School Storm Ready E:33txrt LWV BCC Board Floodplain Board Happy Tails 5:30pm Forum Forum Mtanageme Forum Remo 8:33prr BeINOMPS001d nt Pier Bulletin Board C:30pm 84011n Ekoold 5:15 Bulletin Board 33c'r -appy Tails 7:31pm Collier Recap 3:33 pm 'iN ate rways 8:30pm untold Stories 9:00pm Storm Reedy 9:30pm C^Soe^e 10:00pm Happy Tails 10:30pm Recap 11:00pm Storm Reedy 11:30pm Untold Stories Page 293 Collier County,Florida Floodplain Management Plan T March 2015 amec foster wheeler Co -ler County 164j7 Monday Tuesday Wednesday Thursday Friday Saturday Sunday July 21 July 22 July 23 July 24 July 25 July 26 July 27 2014 2014 2014 2014 2014 2014 2014 Midnight to 6:00am Bulletin Board 6:00am Buletii Bullet n Bulletin Bulletin Bu e in Bu letin Bulletin 7:00am Board Board Board Board. Board Board Board 8:00am Happy Tails 8:30am Collier Recap 9:00am Conservation Floodplain Planning Code Code Planning Code 9:30am Collier Management Commission Enforcement Enforcement Commission Enforcement 10:00am Information Board Board Board 10:30am 7-16-14 Replay Replay 11:00am Live 7-17-14 "Live" Replay 7-17-14 Replay 11:30am Storm ready 7-24-14 7-24-14 12 noon On Scene 12:30pm Happy Tails 1:00pm Recap Recap Recap 1:30pm Storm Ready 2:00pm Waterways 2:30pm Untold Stories 3:00pm Happy Tails 3:30pm Recap 4:00pm On Scene 4:30pm Storm Ready 5:00pm Happy Tails 5:30pm Recap 6:00pm Bulletin Board on Scene 6:30pm Bulletin Board Storm ready 7:00pm Happy Tails 7:30pm Collier Recap 8:00pm W ate rways 8:30pm Untold Stories 9:00pm Storm Ready 9:30pm On Scene 10:00pm Happy Tails 10:30pm Recap 11:00pm Storm Ready 11:30pm Untold Stories 15t Public Meeting Re-aired on July 22,2014 Page 294 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler Co ler County 16 /ti ? Public Survey Collier County distributed a public survey that requested public input into the floodplain management plan planning process and the identification of mitigation activities that could lessen the risk and impact of future flood hazard events. Public information regarding the survey was provided in a News Release, and the survey itself was provided on Collier County's website as well as distributed to attendees at the second public meeting. 1:/� r Collier County Government Growth Management Division Contact:Connie Deane 2800 N.Horseshoe Drive Community Liaison Naples,Florida 34104 239-252-8192 or 8365 colliiereov.net twitter.com/CollierP10 facebook.com/CollierGov voutube-com/CollierGov Nov.6,2014 FOR IMMEDIATE RELEASE Floodplain Management Plan Survey Collier County is in the process of updating its Floodplain Management Plan as a requirement to maintain eligibility for Federal Emergency Management Agency(FEMA)federal disaster funding and to increase credit in the Community Rating System(CRS)Program.The county is working to better develop hazard mitigation to reduce or eliminate long-term risk to human life and property from hazards. Public participation is needed to assist with identifying and assessing our community's flood hazard risks and determine how to best minimize or manage those risks.The information provided will help the county to better understand hazard concerns in the community and can lead to mitigation activities that would help reduce the impacts of future hazard events. Additionally, public input will assist in determining what outreach materials would be better in communicating flood hazard risks. A survey has been created for members of the public to share opinions and participate in the mitigation planning process.The survey is on the Collier County website at www_Colliergovnet/floodplainmgmtplan. All members of the public are welcome to provide their input whether full-time or part-time residents as well as seasonal visitors. We look forward to hearing from you. To have your input included in the Floodplain Management Plan,please submit surveys by Jan.15, 2015. Surveys can be faxed to 239-252-2950 or emailed to GailHambright@colliergov..net. Surveys can also be mailed to: Gary McAlpin,P E. Collier County-Growth Management Division 2800 N.Horseshoe Drive Naples,FL 34104 For more information call Gail Hambright at 239-252-2966. November 6,2014 News Release for Public Survey Page 295 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler Co mer County 16A17 Careers Online Services FAQs Employees Org Chart 0.Search.. m Translate v Co ler County HOME YOUR GOVERNMENT RESIDENTS VISITORS DOING BUSINESS I WANT TO... es_szrc* Planning R Zoning Dapartment sM ' board nt Eui rung A+i.us:nknt �''$ t* r- j and(Appeals - + � �" .� a f Check Status of Planneng Protect ` ;- ? ' ` m Conrprehensrre Planning \ i 3 -.6,1 A a' w--' "' 1, iaaar. I Y � it s a t. �. Contact an EmpdeyPe '.a ° , r• i ,ti.... - ,"i - • Engineering Re.iew Sernces - _ - W FEMA.aniFlood InsuranceRate o6a 14 0 Vr4.■ Maps Floodplain tyfanogenrent -- -'.. en_y Tec=-rmcrts F-a -�r r _- — a-aoeme❑t a -.�� PlapniN FISCAL YEAR 2014/15 FLOODPLAIN MANAGEMENT PLAN UPDATING Ficwlp[ain t.lanage^i._nt Pim-111109�.-orr�hee fleeting a Sere SBookmark Pont Size: le IN P [+]Feedback Information 2011-201? 1 Co ger County 1 6A 37 Collier County received 83 completed surveys. Below is a summary of survey responses received through January 15, 2015. Q1: Do you live in Collier County full-time? Answer Choices Percentage Number Responding Yes 94 78 No 6 5 Total 100 83 Q2: Have you ever experienced or been impacted by high water or flooding in Collier County? Answer Choices Percentage Number Responding Yes 11 9 No 89 74 Total 100 83 Q3: How concerned are you about the possibility of your community being impacted by flooding? Answer Choices Percentage Number Responding Extremely concerned 4 3 Somewhat concerned 42 35 Not concerned 54 45 Total 100 83 Q4: Is your home located in a Federal Emergency Management Agency(FEMA)floodplain? Answer Choices Percentage Number Responding Yes 17 14 No 58 48 I don't know 25 21 Total 100 83 Q5: Do you have flood insurance for your home/personal property? Answer Choices Percentage Number Responding Yes 36 30 No 63 52 I don't know 1 1 Total 100 83 Q6: If"no"to previous question,why not? Answer Choices Percentage Number Responding My home is not located in a floodplain 65 35 I rent 0 0 It's too expensive 4 2 I don't need it because it never floods 7 4 I don't need it because my home is elevated or otherwise 11 6 Page 297 Collier County,Florida Floodplain Management Plan „ads!. March 2015 amec foster wheeler County y 1 6 A 17 Answer Choices Percentage Number Responding protected I don't need it because it is included in the homeowner 0 0 association or condo association fees I never really considered it 11 6 Other 2 1 Total 100 54 Q7: Have you taken any actions to protect your home from flood damage? Answer Choices Percentage Number Responding Yes 10 8 No 90 75 Total 100 83 Q8: Do you know what government agency/office to contact regarding the risks associated with flooding? Answer Choices Percentage Number Responding Yes 53 43 No 47 38 Total 100 81 Q9: What is the most effective way for you to receive information about how to make your home or neighborhood more resistant to flood damage?* Answer Choices Number of Responses Received Newspaper 13 Television advertising or programs 16 Radio advertising or programs 5 Internet 30 Email 47 Mail 24 Public workshops/meetings 18 School meetings 3 Other 0 *Note: Respondents were able to choose more than one answer choice Q10: In your opinion,what are some steps your local government could take to reduce the risk of flooding in your neighborhood? Below is a samples of responses received to Question 10 Using/viewing the flood zoning mapping online should be geared towards the public. 1. County wide surface water management plan 2.More accurate LIDAR mapping 3. Better utilization of existing Natural Floodways. Place sumps to catch and retain water in the area. Page 298 Collier County,Florida Floodplain Management Plan March 2015 amec a foster wheeler Co ler County 16 /ti ? 6 Keep drainage ditches and culverts clean and verified for cleanliness on yearly basis. Meticulous maintenance of our outflow canals. Keep canals, weirs, swales clean and in proper working condition. Make sure canals and weirs are clear. Maintain the flow of water in the canals. Keep the canals flowing in the raining season. Require base elevation on new homes to be higher. Stop directing run-off from County roads into our lake. When the county widened Immokalee Rd, they directed the road's ponds into our lake claiming that they reduced the risk. I am concerned that the additional roads that will be built for the Regional Park will add even more water. Routine observation and maintenance of local flood control canals for vegetation and obstruction to flow. Make sure the drainage canals are not compromised. Mail all homeowners the map of homes located in a FEMA Floodplain and plans on how to be ready for it. Keep people informed. Flooding is an occurrence due to weather. I don't feel there are steps that can be taken to reduce the risk. Keep the canal cleaned out. Send out mailers to people homes on a regular basis keeping them informed. Make sure tertiary and secondary canals are clear of obstructions to allow water to run. 1. Landscaping info to homeowners about placements of raised gardens. 2. Placement of drainage spouts to not direct rainwater from their roofs onto a neighbor's low lying area between the houses, thereby impacting movement of spills because of excessive drainage onto someone else's property. Make sure that the stormwater systems including canal waterways are routinely maintained. Keep roadside ditches and storm drains clear so water can flow freely. Reaccomplish floodplain maps. I am not sure of the accuracy of current maps and while recently updated, I'm led to believe there are many inaccuracies and floodplain errors. Page 299 Collier County,Florida Floodplain Management Plan March 2015 amec eiM foster wheeler Co ier County 16A17 Collier County posted the Draft Risk and Vulnerability Assessment for public review and comment on its website. September 30,2014 Posting of Draft Risk and Vulnerability Assessment Careers Online Services FAQs Employees Org Chart Q Search.. GO Translate Co ie/ County HOME YOUR GOVERNMENT RESIDENTS VISITORS DOING BUSINESS I WANT TO... tot I'lannng h Zoning Department """T''' • r+.;SH•4 ; ---n 6ra•3 ofE.t ding Aij Sys rentt 1 • and Apt,ais f . e �„ p'r i Check S4atJs of Piarrning Project # .;r.. r '.}� 1", [- [. • .4,1( -� J , Compreh ens ue Planning mak la sl Contact an Empd gee . ' � c x ,yp tea• 1:'! Engineering Re,�ic+ry Ser:ices '1-110�. : a ��,uzcxr,.fcr :wraf..0 FEMA Inc loci nsuranee Pate ""t*. Maps FlooJplain Management Your Goverrmen>]ecarin.arts F-R.Planning 8 Zoniro Deoartnien:c Floodplain Manaoernent Planning Planning FISCAL YEAR 2014115 FLOODPLAIN MANAGEMENT PLAN UPDATING lacniplain hianaganent D Share a eookmarh Font Sloe. In 011,Print [+]Feedback Planning Comm-tree Meeting ofomration 2611-2013 Minute_. •floodelain Management Committee Members 2010 Minates . "Floodplain Survey" 2009 Mr cite, Survey must be completed by January 15,2015 E-mail survey to:GailHambrighteCoilierGov.net or 7.60. Minutes Mat to:Gary McAlpin,P.E.,Collier County-Growth Management Division,2800 N.Horseshoe Drive,Naples,FL 2007 Minutes 34104 °Report F1r,oding Public&Staff Comments on the Floodplain Risk&Vulnerability Floodotain Newsletters Assessment Fiscal Year 2014'15 Floodplain • Documents for Public rdanagement Plan Updating Floodplain Rise Assessment-Preliminary Draft :rnd Oe,elspanent Applicaticr Vulnerability Assessment Forms Review of the Hazard Identification and Hazard Vulrlerabsity-9130,2014 aes_l_ tl_ Overview of Collier County Planned Steemnater Proiects.913012014 Page 300 Collier County,Florida Floodplain Management Plan March 2015 amec 4. foster wheeler Cc) -ter County 1 6 A 1 sae Collier County posted the entire Draft Floodplain Management Plan on its website for public review and comment. December 16,2014 Posting of Entire Draft Floodplain Management Plan CO ley County Careers Online Services FAQs Employees Org Char t 0...Search ® Translate v HOME YOUR GOVERNMENT RESIDENTS VISITORS DOING BUSINESS I WANT TO... b,dr2�3f Eiddr19 R.]l�_nment n' t`•� v ..�.;-4 and Appeals „� I �'48ft.x i Check Status of Planning Project y. � 81 i Comprehensive Planning , .. knit.* s 4` 14 A • Contact an Employee yt` ,-r"a. 1 .yltc`° .. try Engineenng Review Services ,-.- .wx:rowr.er u,.. - - ``+,1 FENS and Flood Insurance Pate `""' e ai era l laps •Floodplain hlana� •men/ Yore Goverrmerr.»Departments F-R.Mann,.&Tome Deoanment r Floodplain Manaaement Plarninq PlA° 'r'o FISCAL YEAR 2014/15 FLOODPLAIN MANAGEMENT PLAN UPDATING Floodplain Managr!r.-lit ®Q PlannmgCommitteeP:leeting 0 Share&Bookmark Fort Size Print [1-] Feedback Information 201'.-2013 Minutes • Floodplain Management Committee Members 2010 Minutes • **Floodplain Survey** 2009 Minutes Survey must be completed by January 15,2015 E-mail survey to:GetHambright•HiCotlierGov.oet or 2008 Minutes Mail to:Gary McAlpin,P.E.,Collier County-Growth Management Division.2300 N.Horseshoe Drive,Naples,FL 2007 Minutes 34104 To Report Flooding Public&Staff Comments on the Floodplain Risk&Vulnerability Floodplain Newsletters Assessment k Fiscal Year 2014715 Floodplain Management Plan Jodating • Floodplain Management Plan Land Deoelcpmerrt Application DRAFT Flobeglain Management P'an 121:62014 F"n fieview of the'Draft"Floodplain Manaaement Plan 12/152014 Page 301 Collier County,Florida Floodplain Management Plan March 2015 amec 4 foster wheeler j� 1 6 A 1 7 Collier County Planning Step 3: Coordinate This planning step credits the incorporation of other plans and other agencies' efforts into the development of the floodplain management plan. Other agencies and organizations must be contacted to determine if they have studies, plans and information pertinent to the floodplain management plan, to determine if their programs or initiatives may affect the community's program, and to see if they could support the community's efforts. An example invitation letter is shown below. A copy of all invitation letters can be provided upon request. A coordination letter distribution list is included in Table A-2 at the beginning of this Appendix. October 8,2014 Mr.Steve Martin State Floodplain Management Office Bureau of Mitigation FDEM 2555 Shumard Oak Boulevard Tallahassee,FL 32399-2100 RE:Collier County Floodplain Management Dear Mr.Martin: Collier County is developing a Floodplain Management Plan to address the flood hazards and associated stormwater and local drainage issues that impact the community. This planning process incorporates the 10-steps of Activity 510- Floodplain Management Planning in the National Flood Insurance Program's(NFIP)Community Rating System (CRS)Program. Our objective in reaching out to other agencies and stakeholders is to coordinate with those who may bring additional information to the planning process and associated - flood issues within Collier County. Any information, studies,etc.which may supplement the work of the established Floodplain Management Committee would be welcomed.Additionally,we invite your participation at our committee and public meetings throughout the planning process. Dates for future meeting will be sent to you by Gail Hambtight and posted on the County's website:http://www-colhiergov.nevindex.aspa?page=7366 Gary McAipin,is the program manager for this project He can be reached at(239)252-5342 or warvmcaloinailcolliergovnet Additionally you can contact our planning consultant,David Stroud with AMEC at(919)765-9986 or david.stroud@amec.com. Mr.Steve\larnn October 1.2014 Page_'of 2 We look forward to hearing from you and or pa acipanon at future committee and public meetings. Regards. 7.Gary McAlpin,PE.,CLM Manager Collier County Government Growth Management Division Page 302 Collier County,Florida Floodplain Management Plan Q March 2015 amec foster wheeler Co ger Count y 16Aj7 APPENDIX B: MITIGATION STRATEGY Hazard Identification & Profiles Table B-1 Flood Hazards Profile Summary for Collier County, FL Hazard Frequency of Spatial Extent Potential Magnitude Significance Occurrence Climate Change and Sea Level Rise Highly Likely Limited Negligible Low Coastal/Canal Bank Erosion Highly Likely Limited Negligible Medium Flood: Stormwater/Localized Flooding Highly Likely Limited Negligible Medium Hurricane and Tropical Storms(including Storm Surge) Likely Extensive Catastrophic High Flood: 100-/500-year Occasional Extensive Catastrophic High Dam/Levee Failure Unlikely Limited Negligible Low Guidelines: Frequency of Occurrence: Spatial Extent: Highly Likely: Nearly 100%probability within the next year. Limited:Less than 10%of planning area. Likely: Between 10 and 100% probability within the next Moderate: 10-50%of planning area. year. Extensive: 51-100%of planning area. Occasional: Between 1 and 9% probability within the next year. Significance: Unlikely: Less than 1%probability within the next year. Low Medium Potential Magnitude: High Catastrophic: More than 50%of the area affected. Critical: 26 to 50%of the area affected. Limited: 10 to 25%of the area affected. Negligible:Less than 10%of the area affected. Page 303 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler Co ier County 16A17 B.1 Risk Assessment Methodology B.1.1 Calculating Likelihood of Future Occurrence The frequency of past events is used in this section to gauge the likelihood of future occurrences. Based on historical data, the likelihood of future occurrence is categorized into one of the following classifications: Highly Likely: Near 100%chance of occurrence in next year,or happens every year. Likely: Between 10 and 100% chance of occurrence in next year, or has a recurrence interval of 10 years or less. Occasional: Between 1 and 9% chance of occurrence in the next year, or has a recurrence interval of 11 to 100 years. Unlikely: Less than 1% chance of occurrence in next 100 years, or has a recurrence interval of greater than every 100 years. B.1.2 Calculating Vulnerability Vulnerability is measured in general, qualitative terms, and is a summary of the potential impact based on past occurrences, spatial extent, and damage and casualty potential: Extremely Low: The occurrence and potential cost of damage to life and property is very minimal to non-existent. Low: Minimal potential impact. The occurrence and potential cost of damage to life and property is minimal. Medium: Moderate potential impact. This ranking carries a moderate threat level to the general population and/or built environment. Here the potential damage is more isolated and less costly than a more widespread disaster. High: Widespread potential impact. This ranking carries a high threat to the general population and/or built environment. The potential for damage is widespread. Hazards in this category may have already occurred in the past. Extremely High: Very widespread and catastrophic impact. B.1.3 Defining Significance(Priority) of a Hazard Defining the significance or priority of a hazard to a community is based on a subjective analysis of several factors. This analysis is used to focus and prioritize hazards and associated mitigation measures for the plan.These factors include the following: Past Occurrences: Frequency,extent,and magnitude of historic hazard events. Likelihood of Future Occurrences: Based on past hazard events. Ability to Reduce Losses through Implementation of Mitigation Measures: This looks at both the ability to mitigate the risk of future occurrences as well as the ability to mitigate the vulnerability of a community to a given hazard event. It also considers the extent to which existing mitigation measures are in place to adequately address the hazard. Page 304 Collier County,Florida Floodplain Management Plan March 2015 amecfh foster wheeler Co ler County 1 6 7 B.1.4 Collier County Hazard ID/Vulnerability/Priority Summary Climate Change and Sea Level Rise • Data shows climate change and sea level rise issues are affecting the Collier County planning area. • LOFO: Highly Likely • Vulnerability: High • Priority Hazard Coastal/Canal Bank Erosion • Data shows coastal erosion is a problem affecting the Collier County planning area. There are known local instances of canal bank erosion. • LOFO: Highly Likely • Vulnerability: Medium • Priority Hazard Flood: Stormwater/Localized flooding • Localized flooding also occurs at various times throughout the year with several areas of primary concern to the County. Localized flooding and ponding affect streets and property. • LOFO: Highly Likely • Vulnerability: High • Priority Hazard Hurricane and Tropical Storm(including Storm Surge) • The coastal area of Collier County has been exposed to 81 hurricanes/tropical storms since 1851. • LOFO: Likely—Hurricane;Likely—Storm Surge • Vulnerability: Extremely High • Priority Hazard Flood: 100-/500-year • Extensive 100-yr floodplain coverage within Collier County. • LOFO: 100-Occasional; 500-Unlikely(By Definition) • Vulnerability: Extremely High • Priority Hazard Page 305 Collier County,Florida Floodplain Management Plan March 2015a amec foster wheeler Coilieer County 16A17 Dam/Levee Failure • One dam is located within Collier County(non-high hazard). • There are two agricultural levees located on the eastern County border. • There are no recorded dam breaches or levee failures within Collier County. • LOFO: Unlikely • Vulnerability: Low • Non-Priority Hazard B.1.5 Collier County Priority Hazards Priority Hazards • Climate Change and Sea Level Rise • Coastal/Canal Bank Erosion • Flood: Stormwater/Localized Flooding • Hurricane and Tropical Storms (including Storm Surge) • Flood: 100/500 year Non-Priority Hazards • Dam/Levee Failure Page 306 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler OCtier Count 1 6 41 7 y B. 2 Mitigation Goals Development B.2.1 Formulating Mitigation Goals The FMPC was very involved in collecting and providing data for the Collier County Floodplain Management Plan. From this information, a Risk Assessment was developed that describes the risk and vulnerability of the County to identified hazards and includes an assessment of the County's current capabilities for countering these threats through existing policies, regulations, programs, and projects. This analysis identifies areas where improvements could or should be made. The formulation of goals leads to incorporating these improvements into the Mitigation Strategy portion of the floodplain management plan. The planning goals provide direction for what should be done to make the planning area more disaster resistant. GOALS: Goals are stated without regard for implementation; that is, implementation cost, schedule, and means are not considered. Goals are defined before considering how to accomplish them so that the goals are not dependent on the means of achievement. Goals are public policy statements that: • Represent basic desires of the jurisdiction; • Encompass all aspects of planning area,public and private; • Are nonspecific,in that they refer to the quality(not the quantity)of the outcome; • Are future-oriented,in that they are achievable in the future;and • Are time-independent,in that they are not scheduled events. B.2.2 Goal Development The Collier County FMPC conducted an exercise to outline its goals for this floodplain management plan. The goal setting exercise is covered in detail in Section 5. At the end of the exercise, the FMPC agreed upon five general goals for this planning effort. The goals were refined and include: Goal 1: Reduce vulnerability and exposure to flood hazards in order to protect the health, safety and welfare of residents and guests. Goal 2: Encourage property owners, through education and outreach measures, to protect their homes and businesses from flood damage. Goal 3: Reduce the vulnerability of critical facilities and infrastructure from the effects of flood hazards. Goal 4: Protect natural resources by employing watershed-based approaches that balance environmental,economic and engineering considerations. Goal 5: Minimize the adverse impacts to surrounding areas and watershed functions. The FMPC also included objectives in support of the goals. The objective numbers relate to the goal numbers above. The objectives include: Objective 1.1:Maintain a database of flood problems and hazards. Objective 1.2: Maintain a database of repetitive loss claim history and mitigation activities. Objective 1.3: Review the Growth Management Plan, Land Development Code, and Ordinances for compatibility with these goals and objectives, and revise where appropriate and financially feasible. Page 307 Collier County,Florida Floodplain Management Plan March 2015a amec foster wheeler Co icr County 1 6 A17 Objective 1.4: Develop more comprehensive evacuation plans. Objective 1.5: Review the adequacy of emergency procedures for flood events and coastal storm surge through training and exercises. Objective 1.6: Update FEMA designated flood zones based on the best available technical data and analysis. Objective 1.7: Enforce the minimum code requirements of the National Flood Insurance Program as adopted by the Board of County Commissioners. Objective 1.8: Conduct site investigations, research exposure and hazard data, and evaluate proposed modifications to repair and mitigate stormwater management problems. Objective 1.9: Develop projects to reduce deficiencies within the stormwater management system as part of the Annual Update and Inventory Report(AUIR) and budget development process. Objective 2.1: Educate property owners, including repetitive loss properties, on FEMA grant programs and other methods in order to mitigate possible flood damage. Objective 2.2: Provide the current floodproofing and retrofitting information to property owners. Objective 2.3: Effectively communicate flood risk to residents, businesses, contractors, realtors and prospective buyers. Objective 2.4: Enhance community websites to provide comprehensive flood protection and flood preparedness information. Objective 3.1: Ensure protection standards for critical facilities meet Florida Building Code standards as adopted by the Board of County Commissioners. Objective 3.2: Work with appropriate personnel to prioritize critical and essential facilities in need of protection from potential flood damage. Objective 3.3: Implement flood mitigation measures or strategies, as necessary, to protect critical facilities. Objective 4.1: Maintain and enforce regulations to protect and restore wetlands and ecological functions for long-term environmental,economic and recreational values. Objective 4.2: Continue beach re-nourishment and dune construction programs for the protection of marine habitat,environmentally sensitive lands and other coastal resources. Objective 4.3: Pursue water management approaches and techniques that improve water quality and protect public health. Objective 4.4: Preserve and maintain open space in flood prone areas to reduce flood damage to buildings and to provide recreational benefits. Objective 4.5: Continue to protect aquifers and environmentally sensitive lands from encroachment of development by requiring buffers and other setbacks mechanisms. Page 308 Collier County,Florida Floodplain Management Plan March 2015x amec foster wheeler 161tj7 Co . ier Count y Objective 5.1: Reduce stormwater runoff through adequate stormwater management, flood control, on- site retention and best management practices to mitigate impacts associated with incremental construction and redevelopment projects. Objective 5.2: Evaluate funding mechanisms to increase stormwater capital improvement programs. Objective 5.3:Minimize adverse impacts to the floodplain. B.3 Categories of Mitigation Measures Considered Once it was determined which flood hazards warranted the development of specific mitigation actions, the FMPC analyzed viable mitigation options that supported the identified goals and objectives. The FMPC was provided with the following list of mitigation categories which are utilized as part of the CRS planning process. • Prevention • Property Protection • Natural Resource Protection • Emergency Services • Structural Projects • Public Information B.4 Alternative Mitigation Measures per Category Note: the CRS Credit Sections are based on the 2013 CRS Coordinator's Manual. B.4.1 Prevention Measures Prevention measures are designed to keep a problem - such as flooding - from occurring or from getting worse. The objective of preventive measures is to ensure that future development is not exposed to damage and does not cause an increase in damages to other properties. Building, zoning, planning and code enforcement offices usually administer preventive measures. Some examples of types of preventive measures include: • Building codes • Planning and zoning • Open space preservation • Floodplain regulations • Stormwater management Building Codes Building codes provide one of the best methods of addressing natural hazards. When properly designed and constructed according to code, the average building can withstand many of the impacts of natural hazards. Hazard protection standards for all new and improved or repaired buildings can be incorporated into the local building code. Building codes can ensure that the first floors of new buildings are constructed to be higher than the elevation of the 100-year flood(the flood that is expected to have a one percent chance of occurring in any given year). This is shown in Figure B.1. Page 309 Collier County,Florida Floodplain Management Plan March 2015i amec foster wheeler 1 6A7 co ler County Just as important as having code standards is the enforcement of the code. Adequate inspections are needed during the course of construction to ensure that the builder understands the requirements and is following them. Making sure a structure is properly elevated and anchored requires site inspections at each step. Top of Lowest Floor ~. .---- ----- BFE torim Foundation Wall Openings for the Entry and Exit of Flood Waters Source: FEMA Publication: Above the Flood. Elevating Your Floodprone House,2000 Figure B.1-Building Codes and Flood Elevations Local Implementation Starting with the 2010 edition, the Florida Building Code (FBC) includes flood provisions that are consistent with the NFIP requirements for buildings and structures. All counties, cities and towns are required to enforce the FBC. The code includes some added height for buildings through reference to ASCE 24. Communities that are in the NFIP Community Rating System are required to use the NFIP Elevation Certificate. Collier County maintains NFIP Elevation Certificates and conducts annual audits for the CRS program. Reducing Future Flood Losses Future flood losses will be reduced through the implementation and enforcement of the 2010 Florida Building Code. The 2010 FBC refers to local floodplain management ordinances for adoption of flood hazard maps and gives communities the opportunity to adopt higher standards. CRS Credit The CRS encourages strong building codes. It provides credit in two ways: points are awarded based on the community's Building Code Effectiveness Grading Schedule (BCEGS) classification and points are Page 310 Collier County,Florida Floodplain Management Plan 1;,� March 2015 amec foster wheeler Co -rer Count 16A17 County awarded for adopting the International Code series. Collier County has a BCEGS rating of 4 for 1 and 2 family residential and a 3 for commercial. The City of Marco Island has a BCEGS rating of Class 4 for both residential and commercial. The City of Naples's BCEGS rating is a Class 3 for both residential and commercial. All three communities have adopted the 2010 Florida Building Code which is based on national model building codes and national consensus standards which are amended where necessary for Florida's specific needs. The Florida Building Code is updated every three years. Planning and Zoning Building codes provide guidance on how to build in hazardous areas. Planning and zoning activities direct development away from these areas, particularly floodplains and wetlands. They do this by designating land uses that are compatible with the natural conditions of land that is prone to flooding, such as open space or recreation. Planning and zoning activities can also provide benefits by simply allowing developers more flexibility in arranging improvements on a parcel of land through the planned development approach. Local Implementation Comprehensive Plan A Comprehensive Plan, in broad terms, is a policy statement to guide the future placement and development of community facilities. It is the basis for a community's zoning, subdivision and design regulations and a community's official maps and amendments to the zoning, subdivision and design ordinances. The future land use element of the plan represents the community's vision for its development and redevelopment during the subject planning period. The future land use maps serve as the foundation for subsequent development of more detailed Land Development Regulations and special area plans. These regulations and plans must be consistent with and further the implementation of the future land use element of the Comprehensive Growth Management Plan and its goals, objectives and policies. Florida's Growth Management Act requires the state's counties and municipalities to adopt Comprehensive Plans that guide future growth and development. The Collier County Growth Management Plan was most recently amended in 2014; the City of Marco Island Comprehensive Plan is dated 2009; and the City of Naples Comprehensive Plan was updated in December 2013. The goals and objectives from each Plan are summarized in Section 4.4. Zoning Regulations The Land Development Code (LDC) is the principal regulatory tool for implementing a community's Growth Management Plan. The State of Florida requires all counties,cities and towns to create and abide by the Land Development Code. The LDC contains land use and zoning standards, site design standards, and environmental regulations that development must meet in the community. Criteria are provided to ensure that all growth meets the objectives of the Growth Management Plan. Collier County, the City of Marco Island and the City of Naples all enforce a LDC ordinance. Capital Improvement Plan The Community Planning Act of 2011 requires local governments to review the Capital Improvement Element of the GMP on an annual basis and to update the 5-year capital improvement schedule. The GMP for Collier County, the City of Marco Island and the City of Naples all include a Capital Improvement Element that is updated annually. The Capital Improvement Plan is essential for funding and implementing structural mitigation projects. Page 311 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler Co ier County 16A17 Reducing Future Flood Losses Zoning and comprehensive planning should work together to reduce future flood losses by directing development away from hazard prone areas as well as funding mitigation projects. Open Space Preservation Keeping the floodplain and other hazardous areas open and free from development is the best approach to preventing damage to new developments. Open space can be maintained in agricultural use or can serve as parks,greenway corridors and golf courses. Comprehensive and capital improvement plans should identify areas to be preserved by acquisition and other means, such as purchasing an easement. With an easement, the owner is free to develop and use private property,but property taxes are reduced or a payment is made to the owner if the owner agrees to not build on the part set aside in the easement. Although there are some federal programs that can help acquire or reserve open lands, open space lands and easements do not always have to be purchased. Developers can be encouraged to dedicate park land and required to dedicate easements for drainage and maintenance purposes. These are usually linear areas along property lines or channels. Maintenance easements also can be donated by streamside property owners in return for a community maintenance program. Local Implementation The State of Florida Local Government Comprehensive Planning and Land Development Regulation Act requires a "recreation and open space element indicating a comprehensive system of public and private sites for recreation, including but not limited to: natural reservations, parks and playgrounds, parkways, beaches and public access to beaches,open spaces and other recreational facilities." As stated in the Collier County Growth Management Plan Future Land Use Element, the purpose and intent of the Collier County conservation zoning district"CON" is to conserve,protect,and maintain vital natural resource lands within unincorporated Collier County that are owned primarily by the public. All native habitats possess ecological and physical characteristics that justify attempts to maintain these important natural resources. Barrier Islands, coastal bays, wetlands, and habitat for listed species receive particular attention because of their ecological value and their sensitivity to perturbation.All proposals for development in the CON district must be subject to rigorous review to ensure that the impacts of the development do not destroy or unacceptably degrade the inherent functional values. The CON district includes such public lands as Everglades National Park, Big Cypress National Preserve, Florida Panther National Wildlife Refuge,portions of the Big Cypress Area of Critical State Concern,Fakahatchee Strand State Preserve, Collier-Seminole State Park, Rookery Bay National Estuarine Sanctuary Research Reserve,Delnor-Wiggins State Park,and the National Audubon's Corkscrew Swamp Sanctuary(privately owned), and C.R.E.W. It is the intent of the CON district to require review of all development proposed within the CON district to ensure that the inherent value of the County's natural resources is not destroyed or unacceptably altered. The CON district corresponds to and implements the conservation land use designation on the future land use map of the Collier County Growth Management Plan. The adopted goal of the City of Marco Island's Park and Open Space Element reads, "To enhance Marco Island's open space and recreational opportunities while maintaining its tropical, small town character." In furtherance of this goal there are four objectives and fifteen (15) policies. The City has successfully acquired numerous sites for new and expanded recreational opportunities such as "the Glon" property (Veteran's Park), strategic lots and parcels along a 1.5 mile pathway corridor, and a waterfront lot at the Factory Bay Bridge. Significant park renovations/enhancement projects at Winterberry and Mackle parks Page 312 Collier County,Florida Floodplain Management Plan March 2015 10, amec foster wheeler colt County 1 X1 7 have either been completed or in final design stages, with identified capital improvement funding. And most importantly the City has established a fully functioning Park and Recreation Department. With an inventory of over 100 acres of total community parkland,the adopted LOS standard of 1.2882 acres/1,000 residents there is sufficient active parkland acreage to support both projected permanent and peak season populations well into the future. The City of Naples Growth Management Plan includes a Parks, Recreation and Open Space Element. Existing public recreation facilities within the City of Naples include seven neighborhood and linear parks, 13 mini-parks, four community parks, two natural resource areas, the Naples Pier, and the City Dock. The Collier County School Board provides recreation facilities within the City limits at four schools. Collier County provides facilities at Bayview Park and at Gulfview Middle School. In addition, there are approximately 9.1 miles of beaches. Naples Bay, Gordon River, Moorings Bay, and the Gulf of Mexico provide many water-oriented recreation opportunities. The City maintains an additional one- hundred-one 101 acres of open space parkway area,including beach ends and access points, street islands and medians,cul-de-sacs and rights-of-way. Reducing Future Flood Losses Creating or maintaining open space is the primary way to reduce future flood losses. Collier County, the City of Marco Island and the City of Naples have many open space and natural parcels which serve to reduce future flood losses by remaining open. These parks and natural preserved areas create opportunities for the public to benefit from education and recreation while eliminating potential for future flooding. CRS Credit Preserving flood prone areas as open space is one of the highest priorities of the Community Rating System. The credits in the 2013 manual have doubled for OSP (Open Space Preservation). Credit is based on the area of the floodplain that is designated as public undeveloped properties, parks, wildlife refuges,golf courses,or other uses that can be kept vacant through ownership or regulations. Floodplain Regulations The National Flood Insurance Program (NFIP) is administered by the Federal Emergency Management Agency (FEMA). As a condition of making flood insurance available for their residents, communities that participate in the NFIP agree to regulate new construction in the area subject to inundation by the 100-year (base) flood. The floodplain subject to these requirements is shown as an A or V Zone on the Flood Insurance Rate Map(FIRM). There are five major floodplain regulatory requirements. Additional floodplain regulatory requirements may be set by state and local laws. 1) All development in the 100-year floodplain must have a permit from the community. The NFIP regulations define "development" as any manmade change to improved or unimproved real estate, including but not limited to buildings or other structures, mining, dredging, filling, grading, paving, excavation or drilling operations or storage of equipment or materials. 2)Development along a river or other channel cannot obstruct flows so as to cause an increase in flooding on other properties. An analysis must be conducted to demonstrate that the cumulative effect of the proposed development, when combined with all other existing and anticipated development, will not increase the water surface elevation of the base flood more than one foot at any point within the community. Page 313 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler Co ger County 16A17 6 A 3) New buildings may be built in the floodplain, but they must be protected from damage from the base flood. In riverine floodplains, the lowest floor of residential buildings must be elevated to be at or above the base flood elevation(BFE). Nonresidential buildings must be either elevated or floodproofed. 4) Under the NFIP, a "substantially improved" building is treated as a new building. The NFIP regulations define "substantial improvement" as any reconstruction, rehabilitation, addition, or other improvement of a structure, the cost of which equals or exceeds 50% of the market value of the structure before the start of construction of the improvement. This requirement also applies to buildings that are substantially damaged. 5) Communities are encouraged to adopt local ordinances that are more comprehensive or provide more protection than the federal criteria. The NFIP's Community Rating System provides insurance premium credits to recognize the additional flood protection benefit of higher regulatory standards. Local Implementation Collier County and the Cities of Marco Island and Naples updated their ordinances after a new Flood Insurance Rate Map (FIRM) became effective in 2012. The new map is based on updated topographical and hydrological data and now identifies the risk from coastal storm surge flooding as well as rainfall from the coastline to roughly State Route 29. Many areas of the county that had been exempt under previous flood zone mapping (D-Zones) are now included, such as the Golden Gate Estates area up to Immokalee in the northern portion of the County; this area is now largely shown as the AH-Zone. There were also changes in X-Zones, which cover much of the urban area of the County. BFEs range from 8.5 feet along the coast to 37.5 feet further inland. Collier County Flood Damage Prevention Ordinance Collier County's current Flood Damage Prevention Ordinance was adopted in 2011 and amended in 2013. The ordinance reduces flood losses by: • Restricting or prohibiting uses which are dangerous to health, safety and property due to water or erosion hazards, which result in damaging increases in erosion or in flood heights and velocities; • Requiring that uses vulnerable to floods including facilities which serve such uses be protected against flood damage throughout their intended life span; • Controlling the alteration of natural floodplains, stream channels, and natural protective barriers which are involved in the accommodation of floodwaters; • Controlling filling,grading,dredging and other development which may increase erosion or flood damage; and • Preventing or regulating the construction of flood barriers which will unnaturally divert floodwaters or which may increase flood hazards to other lands. The ordinance requires the following in Special Flood Hazard Areas where base-flood elevation data have been provided: • Residential Construction. New construction and substantial improvement of any residential building (including manufactured home) shall have the lowest floor, including basement, elevated to no lower than the BFE. Should solid foundation perimeter walls be used to elevate a structure, there must be a minimum of two openings on different sides of each enclosed area sufficient to facilitate automatic equalization of flood hydrostatic forces in accordance with the ordinance. Page 314 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler Co 7Pr Ciounty10417 • Non-Residential Construction. New construction and substantial improvement of any commercial, industrial, or non-residential building(including manufactured home) shall have the lowest floor, including basement, elevated to no lower than the BFE. All commercial, industrial, or non-residential buildings located in A-Zones may be floodproofed, in lieu of being elevated. • Enclosures below the Lowest Floor. New construction and substantial improvements that include fully enclosed areas formed by foundation and other exterior walls below the lowest floor elevation shall be designed to preclude finished living space and designed to allow for the entry and exit of floodwaters to automatically equalize hydrostatic flood forces on exterior walls. o Designs shall meet or exceed the following minimum criteria: • Provide a minimum of two openings on different sides of each enclosed area having a total net area of not less than one square inch for every square foot of enclosed area subject to flooding; • The bottom of all openings shall be no higher than one foot above adjacent interior grade (which must be equal to or higher in elevation than the adjacent exterior grade);and • Openings may be equipped with screens, louvers, valves, or other coverings or devices provided they provide the required net area of the openings and permit the automatic flow of floodwaters in both directions. o Fully enclosed areas below the lowest floor shall solely be used for parking of vehicles, storage,and building access. o The interior portion of such enclosed area shall not be finished, partitioned into separate rooms,or temperature-controlled(air conditioned). • Adequate drainage paths around structures shall be provided on slopes to guide water away from structures within areas of shallow flooding. • Standards for Waterways with established BFEs, but without Regulatory Floodways. Located within the SFHA, where Watercourses exist for which BFE data has been provided by FEMA without the delineation of the Regulatory floodway (Zones AE and Al-30), the following provisions shall also apply. o Until a regulatory floodway is designated, no new construction, substantial improvements, or other development, including fill, shall be permitted within the SFHA, unless it is demonstrated that the cumulative effect of the proposed development, when combined with all other existing and anticipated development,will not increase the water surface elevation of the base flood more than one foot at any point within the community. o Development activities which increase the water surface elevation of the base flood by more than one foot may be allowed,provided that the developer or applicant first applies — with the community's endorsement—for a conditional FIRM revision, and receives the approval of FEMA. • For all structures located seaward of the Coastal Construction Control Line (CCCL), the lowest floor of all new construction and substantial improvements shall be elevated to no lower than the 100-year flood elevation established by the Florida Department of Environmental Protection or by FEMA.All non-elevation design requirements of the ordinance shall apply. • Accessory structures shall be constructed and placed on the building site so as to offer the minimum resistance to the flow of floodwaters. They shall be firmly anchored to prevent flotation which may result in damage to other structures. Service facilities such as electrical and heating equipment shall be elevated at or above the BFE or floodproofed. Openings to automatically equalize flood hydrostatic forces on exterior walls during the base flood shall be provided below BFE in conformance with 44 CFR Section 60.3(c)(5). The ordinance requires specific standards for coastal high hazard areas(V-zones): Page 315 Collier County,Florida Floodplain Management Plan V March 2015 amec IMP foster wheeler Co ler County 16A17 • All new construction and substantial improvements in Zones V1-V30, VE, and V (with BFE) shall be elevated on pilings or columns so that: o The bottom of the lowest horizontal structural member of the Lowest floor(excluding the pilings or columns) is elevated to no lower than the BFE whether or not the structure contains a basement;and o The pile or column foundation and structure attached thereto is anchored to resist floatation, collapse and lateral movement due to the effects of wind and water loads acting simultaneously on all building components. Water loading will be those values associated with the base flood. o For all structures located seaward of the CCCL, the bottom of the lowest horizontal structural member of the lowest floor shall be elevated to the 100-year flood elevation established by the Florida Department of Environmental Protection or the BFE, whichever is the higher. • Obtain the elevation(in relation to Mean sea level NAVD) of the bottom of the lowest horizontal structural member of the lowest floor (excluding pilings and columns) of all new and substantially improved structures. • All new construction and substantial improvements shall be located landward of the reach of mean high tide. • All new construction and substantial improvements have the space below the lowest floor either free of obstruction or constructed with non-supporting breakaway walls, open wood lattice-work, or insect screening intended to collapse under wind and water loads without causing collapse, displacement, or other structural damage to the elevated portion of the building or supporting foundation system. Such enclosed space shall be usable solely for parking of vehicles, building access,or storage. • Prohibit the use of fill for structural support. No development permit shall be issued for Development involving fill in Coastal high hazard areas unless it has been demonstrated through appropriate engineering analyses that the subject fill does not cause any adverse impacts to the Structure on-site or other properties. • Prohibit man-made alteration of sand dunes and mangrove stands that would increase potential flood damage. • For all structures located seaward of the CCCL, the bottom of the lowest horizontal structural member of the lowest floor of all new construction and substantial improvements shall be elevated to the flood elevation established by the Florida Department of Environmental Protection or the BFE,whichever is the higher. • When fill is proposed, in accordance with the permit issued by the Florida Department of Health, in a coastal high hazard area, the development permit shall be issued only upon demonstration by appropriate engineering analyses that the proposed fill will not increase the water surface elevation of the base flood nor cause any adverse impacts to the structure on-site or other properties by wave ramping and deflection. • Accessory structures must be constructed with flood damage-resistant materials below the BFE and used only for storage. The structural system shall utilize pilings, adequately embedded to resist scour and lateral deflection. The lowest horizontal structural member of roof systems, including plates and beams connecting the upright supports of the structure, shall be placed at or above the BFE. Any small accessory structure enclosure below the BFE shall be constructed with breakaway walls. Page 316 Collier County,Florida Floodplain Management Plan T March 2015 amec foster wheeler Co ler County 1 6 Other standards in the ordinance address manufactured homes and recreational vehicles, A-zones without base flood elevations and regulatory floodways,and subdivision requirements. Marco Island Floodplain Management Ordinance(amended 2012) Naples Flood Floodplain Management Ordinance(amended 2012) The ordinances for the Cities of Marco Island and Naples follow the State's recent model ordinance and generally contain the same language, including the following requirements for flood resistant development: • Design and construction of buildings, structures and facilities exempt from the Florida Building Code shall be designed and constructed in accordance with the flood load and flood resistant construction requirements of ASCE 24. • If extending,in whole or in part, seaward of the coastal construction control line(CCCL) and also located in whole or in part,in a flood hazard area: o Buildings and structures shall be designed and constructed to comply with the more restrictive applicable requirements of the Florida Building Code,Building Section 3109 and Section 1612 or Florida Building Code,Residential Section R322 o Minor structures and non-habitable major structures are defined in F.S. § 161.54,shall be designed and constructed to comply with the intent and applicable provisions of this article and ASCE 24. • All public utilities and facilities such as sewer,gas,electric,communications,and water systems shall be located and constructed to minimize or eliminate flood damage. • All new and replacement sanitary sewage facilities,private sewage treatments plants(including all pumping stations and collector systems), and on-site waste disposal systems shall be designed in accordance with the standards for onsite sewage treatment and disposal systems in Chapter 64E-6,F.A.C. and ASCE 24 Chapter 7 to minimize and eliminate infiltration of floodwaters into the facilities and discharge from the facilities into floodwaters,and impairment of the facilities and systems. • All new and replacement water supply facilities shall be designed in accordance with the water well construction standards in Chapter 62-532.500,F.A.C. and ASCE 24 Chapter 7 to minimize or eliminate infiltration of floodwaters into the system. • Limitations on sites in regulatory floodways. No development,including but not limited to site improvements,and land disturbing activity involving fill or re-grading, shall be authorized in the regulatory floodway unless the floodway encroachment analysis demonstrates that the proposed development or land disturbing activity will not result in any increase in the base flood elevation. • Limitations on placement of fill. Subject to the limitations of this article,fill shall be designed to be stable under conditions of flooding including rapid rise and rapid drawdown of floodwaters, prolonged inundation,and protection against flood-related erosion and scour. In addition to these requirements,if intended to support buildings and structures(Zone A only),fill shall comply with the requirements of the Florida Building Code. • Limitations on sites in coastal high hazard areas(Zone V). In coastal high hazard areas,alteration of sand dunes and mangrove stands shall be permitted only if such alteration is approved by the Page 317 Collier County,Florida Floodplain Management Plan �. March 2015 amec foster wheeler 99unty 1 6 A 1 7 Florida Department of Environmental Protection and only if the engineering analysis required by this article demonstrates that the proposed alteration will not increase the potential for flood damage. Construction or restoration of dunes under or around elevated buildings and structures shall comply with this article. • Other development. o All development,including man-made changes to improved or unimproved real estate for which specific provisions are not specified in this article or the Florida Building Code, shall: • Be located and constructed to minimize flood damage. • Be anchored to prevent flotation,collapse or lateral movement resulting from hydrostatic loads,including the effects of buoyancy,during conditions of design flood; • Be constructed of flood-damage resistant materials; and • Have mechanical,plumbing, and electrical systems above the design flood elevation,except that minimum electric service required to address life safety and electric code requirements is permitted below design flood elevation provided it conforms to the provisions of the electrical part of building code for wet locations. o All new development and substantial improvements shall be located landward of the reach of mean high tide. o Other development in coastal high hazard areas(Zone V). Development activities other than building and structures shall be permitted only if also authorized by the appropriate state or local authority;if located outside the footprint of, and not structurally attached to buildings and structures; and if analyses prepared by qualified registered design professionals demonstrate no harmful diversion of floodwaters or wave run-up and wave reflection that would increase damage to adjacent buildings and structures. Such other development activities include but are not limited to: • Bulkheads, seawalls,retaining walls,revetments, and similar erosion control structures. • Solid fences and privacy walls,and fences prone to trapping debris,unless designed and constructed to fail under flood conditions less than the design flood or otherwise function to avoid obstruction of floodwaters; and • On-site sewage treatment and disposal systems defined in 64E-6.002 F.A.C.,as filled systems or mound systems. o Nonstructural fill in coastal high hazard areas(Zone V). In coastal high hazard areas: • The use of fill for structural support is prohibited. • Minor grading and placement of minor quantities of nonstructural fill shall be permitted for landscaping and for drainage purposes under and around buildings. • Nonstructural fill with finished slopes that are steeper than one unit vertical to five units horizontal shall be permitted only if an analysis prepared by a qualified registered design professional demonstrates no harmful diversion of Page 318 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler Col ier County 16 A floodwaters or wave run-up and wave reflection that would increase damage to adjacent buildings and structures. • Where authorized by the Florida Department of Environmental Protection or applicable local approval, sand dune construction and restoration of sand dunes under or around elevated buildings are permitted without additional engineering analysis or certification of the diversion of floodwater or wave run-up and wave reflection if the scale and location of the dune work is consistent with local beach-dune morphology and the vertical clearance is maintained between the top of the sand dune and the lowest horizontal structural member. o Other restrictions in coastal high hazard areas(Zone V). Single story detached garages and accessory buildings are prohibited. The cities' ordinances also address tanks (above and underground), subdivision requirements,and other development(e.g. fences, septic systems,permanent erosion control structures,parking pads,decks,and patios)in coastal high hazard areas. CRS Credit Collier County, Marco Island and Naples currently receive credit for Activity 430 — Higher Regulatory Standards. This credit is provided for enforcing regulations that require freeboard for new and substantial improvement construction, cumulative substantial improvement, lower substantial improvement, other higher regulatory standards, and state mandated regulatory standards. Credit is also provided for BCEGS classifications, staff education and certifications of floodplain managers. Reducing Future Flood Losses Examples of additional higher regulatory approaches and the benefits they could provide to Collier County,Marco Island and Naples include: • Requiring compensatory storage preserves areas of the floodplain that can store flood water and minimizes increases in flood heights due to development • Requiring the lowest floors of residences to be higher than the base flood elevation protects buildings from higher floods • Requiring full compliance with floodplain management regulations when proposed improvements or repairs are less than 50% of a building's value brings more nonconforming buildings up to current flood protection standards • Protecting critical facilities to higher levels reduces damage to those facilities and improves the community's ability to respond to the needs of citizens during a disaster • Standards for protecting buildings from local drainage problems reduce flood losses and flood insurance claims,especially outside the floodplain • Requiring new manufactured housing in existing manufactured housing parks to meet the same level of protection as is required for other new buildings reduces flood losses and flood insurance claims • Requiring new construction in the coastal A Zone to meet the same standards as V Zone buildings protects it from a known,but unmapped,breaking wave hazard Page 319 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler 2r9unty 1 bA17 7 Stormwater Management Stormwater runoff is increased when natural ground cover is replaced by urban development. Development in the watershed that drains to a river can aggravate downstream flooding, overload the community's drainage system,cause erosion, and impair water quality. There are three ways to prevent flooding problems caused by stormwater runoff: 1) Regulating development in the floodplain to ensure that it will be protected from flooding and that it won't divert floodwaters onto other properties,and 2) Regulating all development to ensure that the post-development peak runoff will not be greater than it was under pre-development conditions. 3) Set construction standards so buildings are protected from shallow water. Local Implementation The Collier County Watershed Management Plan (CCWP) was prepared in 2011. Goals of the CCWMP are to help meet levels of service for flood protection, as well as sustainability of future water supplies for the citizens of Collier County. The Drainage Sub-Element of the County's Growth Management Plan, which was updated in 2013, is concerned with flood prevention (a quantity issues) and the removal of various pollutants in surface stormwater (a quality issue) and contains a set of comprehensive strategies for dealing with both stormwater quantity and quality issues. The City of Marco Island addresses stormwater management in its Comprehensive Plan (the Stormwater Management Sub-Element). The City of Naples has a stand-alone Stormwater Master Plan that was updated in 2007. The purpose of the plan is to compile existing stormwater data,alternative analyses,cost, and recommendations into a master plan with focus on improving flood control, improving pollution control, and improving Naples Bay on a regional level. Reducing Future Flood Losses Stormwater management and the requirement that post development runoff cannot exceed pre- development conditions is a great way to prevent future flood losses. Low Impact Development (LID) credits the community's regulatory language that requires the implementation of LID techniques when new development occurs. LID techniques can significantly reduce or eliminate the increase in stormwater runoff created by traditional development, encourage aquifer recharge, and promote better water quality. Communities are encouraged to use these techniques to minimize the need for more traditional stormwater management. CRS Credit Collier County, Marco Island and Naples currently receive credit for Activity 450 — Stormwater Management. The community enforces regulations for stormwater management, watershed master planning, soil and erosion control and water quality. Prevention Measures Recommendations: • Collier County, Marco Island and Naples should continue to maintain or work to improve their BCEGS ratings. • Collier County, Marco Island and Naples should consider adding additional higher regulatory standards to flood damage prevention ordinances. Page 320 Collier County,Florida Floodplain Management Plan March 2015 a amec foster wheeler Co ger Count1 6 A 7 • Collier County, Marco Island and Naples should consider implementing LID principles and practices to new development,redevelopment and retrofits to existing development. • Collier County, Marco Island and Naples should continue to identify "conservation" lands with no development allowed in those designated areas. B.4.2 Property Protection Measures Property protection measures are used to modify buildings or property subject to damage. Property protection measures fall under three approaches: • Modify the site to keep the hazard from reaching the building, • Modify the building(retrofit) so it can withstand the impacts of the hazard,and • Insure the property to provide financial relief after the damage occurs. Property protection measures are normally implemented by the property owner, although in many cases technical and financial assistance can be provided by a government agency. Keeping the Hazard Away Generally,natural hazards do not damage vacant areas. As noted earlier,the major impact of hazards is to people and improved property. In some cases,properties can be modified so the hazard does not reach the damage-prone improvements. For example, a berm can be built to prevent floodwaters from reaching a house. Flooding There are five common methods to keep a flood from reaching and damaging a building: • Erect a barrier between the building and the source of the flooding. • Move the building out of the floodprone area. • Elevate the building above the flood level. • Demolish the building. • Replace the building with a new one that is elevated above the flood level. Barriers A flood protection barrier can be built of dirt or soil (a "berm") or concrete or steel (a "floodwall"). Careful design is needed so as not to create flooding or drainage problems on neighboring properties. Depending on how porous the ground is, if floodwaters will stay up for more than an hour or two, the design needs to account for leaks, seepage of water underneath, and rainwater that will fall inside the perimeter. This is usually done with a sump or drain to collect the internal groundwater and surface water and a pump and pipe to pump the internal drainage over the barrier. Barriers can only be built so high. They can be overtopped by a flood higher than expected. Barriers made of earth are susceptible to erosion from rain and floodwaters if not properly sloped, covered with grass, and properly maintained. A berm can also settle over time, lowering its protection level. A floodwall can crack, weaken, and lose its watertight seal. Therefore, barriers need careful design and maintenance(and insurance on the building,in case of failure). Relocation Moving a building to higher ground is the surest and safest way to protect it from flooding. In areas subject to flash flooding, deep waters, or other high hazard, relocation is often the only safe approach. Page 321 Collier County,Florida Floodplain Management Plan V March 2015 amec 43, foster wheeler Co rer County 1 7 ..,.....„... Relocation is also preferred for large lots that include buildable areas outside the floodplain or where the owner has a new flood-free lot(or portion of the existing lot)available. Building Elevation Raising a building above the flood level can be almost as effective as moving it out of the floodplain. Water flows under or around the building, causing little or no damage to the structure or its contents. Raising a building above the flood level is cheaper than moving it and can be less disruptive to a neighborhood. Elevation has proven to be an acceptable and reasonable means of complying with floodplain regulations that require new,substantially improved,and substantially damaged buildings to be elevated above the base flood elevation. Demolition Some buildings, especially heavily damaged or repetitively flooded ones, are not worth the expense to protect them from future damages. It is cheaper to demolish them and either replace them with new, flood protected structures, or relocate the occupants to a safer site. Demolition is also appropriate for buildings that are difficult to move - such as larger, slab foundation or masonry structures - and for dilapidated structures that are not worth protecting. Generally, demolition projects are undertaken by a government agency, so the cost is not borne by the property owner, and the land is converted to public open space use,like a park. Pilot Reconstruction If a building is not in good shape, elevating it may not be worthwhile or it may even be dangerous. An alternative is to demolish the structure and build a new one on the site that meets or exceeds all flood protection codes. FEMA funding programs refer to this approach as "pilot reconstruction." It is still a pilot program, and not a regularly funded option. Certain rules must be followed to qualify for federal funds for pilot reconstruction: • Pilot reconstruction is only possible after it has been shown that acquisition or elevation are not feasible,based on the program's criteria. • Funds are only available to people who owned the property at the time of the event for which funding is authorized. • It must be demonstrated that the benefits exceed the costs. • The new building must be elevated to the advisory base flood elevation. • The new building must not exceed more than 10% of the old building's square footage. • The new building must meet all flood and wind protection codes. • There must be a deed restriction that states the owner will buy and keep a flood insurance policy. • The maximum federal grant is 75% of the cost, up to $150,000. FEMA is developing a detailed list of eligible costs to ensure that disaster funds are not used to upgrade homes. Local Implementation Collier County and Marco Island do not currently receive credit for Activity 520 — Acquisition and Relocation or Activity 530—Flood Protection. Naples does not currently receive credit for Activity 520, but does receive credit for Activity 530. CRS Credit The CRS provides the most credit points for acquisition and relocation under Activity 520, because this measure permanently removes insurable buildings from the floodplain. The CRS credits barriers and elevating existing buildings under Activity 530. Elevating a building above the flood level will also reduce the flood insurance premiums on that individual building. Because barriers are less secure than Page 322 Collier County,Florida Floodplain Management Plan March 2015y amec foster wheeler Co ier County 16A17 elevation,not as many points are provided. Higher scores are possible,but they are based on the number of buildings removed compared to the number remaining in the floodplain. Retrofitting An alternative to keeping the hazard away from a building is to modify or retrofit the site or building to minimize or prevent damage. There are a variety of techniques to do this,as described below. Dry Floodproofing Dry floodproofing means making all areas below the flood protection level watertight. Walls are coated with waterproofing compounds or plastic sheeting. Openings, such as doors, windows and vents, are closed, either permanently, with removable shields, or with sandbags. Dry floodproofing of new and existing nonresidential buildings in the regulatory floodplain is permitted under state, FEMA and local regulations. Dry floodproofing of existing residential buildings in the floodplain is also permitted as long as the building is not substantially damaged or being substantially improved. Owners of buildings located outside the regulatory floodplain can always use dry floodproofing techniques. Dry floodproofing is only effective for shallow flooding,such as repetitive drainage problems. It does not protect from the deep flooding along lakes and larger rivers caused by hurricanes or other storms. Wet Floodproofing The alternative to dry floodproofing is wet floodproofing: water is let in and everything that could be damaged by a flood is removed or elevated above the flood level. Structural components below the flood level are replaced with materials that are not subject to water damage. For example,concrete block walls are used instead of wooden studs and gypsum wallboard. The furnace,water heater and laundry facilities are permanently relocated to a higher floor. Where the flooding is not deep, these appliances can be raised on blocks or platforms. Local Implementation Naples currently receives credit for Activity 530—Flood Protection. Collier County and Marco Island do not currently receive credit for this activity. CRS Credit The credit for Activity 530 is based on the number of insurable buildings in the regulatory floodplain that have been retrofitted since the date of the community's original Flood Insurance Rate Map (FIRM). For the purposes of this activity,an accessory structure such as a garage or shed is not counted as an insurable building. Extra credit is given for protecting buildings on FEMA's repetitive loss list and for protecting buildings that are critical facilities. Flood protection techniques that are recognized by this activity include retrofitting projects and structural flood control projects. The credit points are based on the effectiveness of the technique in preventing flood damage. Insurance Technically, insurance does not mitigate damage caused by a natural hazard. However, it does help the owner repair,rebuild, and hopefully afford to incorporate some of the other property protection measures in the process. Insurance offers the advantage of protecting the property, as long as the policy is in force, without requiring human intervention for the measure to work. Private Property Although most homeowner's insurance policies do not cover a property for flood damage, an owner can insure a building for damage by surface flooding through the NFIP. Flood insurance coverage is provided Page 323 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler Co ger County 1 6 A 1 7 for buildings and their contents damaged by a "general condition of surface flooding" in the area. Most people purchase flood insurance because it is required by the bank when they get a mortgage or home improvement loan. Usually these policies just cover the building's structure and not the contents. Contents coverage can be purchased separately. Renters can buy contents coverage, even if the owner does not buy structural coverage on the building. Most people don't realize that there is a 30-day waiting period to purchase a flood insurance policy and there are limits on coverage. Public Property Governments can purchase commercial insurance policies. Larger local governments often self-insure and absorb the cost of damage to one facility, but if many properties are exposed to damage, self- insurance can drain the government's budget. Communities cannot expect federal disaster assistance to make up the difference after a flood. Under Section 406(d) of the Stafford Act: "If an eligible insurable facility damaged by flooding is located in a [mapped floodplain] ... and the facility is not covered (or is underinsured) by flood insurance on the date of such flooding, FEMA is required to reduce Federal disaster assistance by the maximum amount of insurance proceeds that would have been received had the buildings and contents been fully covered under a National Flood Insurance Program (NFIP) standard flood insurance policy. [Generally, the maximum amount of proceeds for a non-residential property is $500,000.] [Communities] Need to: • Identify all insurable facilities, and the type and amount of coverage (including deductibles and policy limits) for each. The anticipated insurance proceeds will be deducted from the total eligible damages to the facilities. • Identify all facilities that have previously received Federal disaster assistance for which insurance was required. Determine if insurance has been maintained. A failure to maintain the required insurance for the hazard that caused the disaster will render ineligible for Public Assistance funding... • [Communities] must obtain and maintain insurance to cover [their] facility - buildings, equipment, contents and vehicles - for the hazard that caused the damage in order to receive Public Assistance funding. Such coverage must, at a minimum, be in the amount of the eligible project costs. FEMA will not provide assistance for that facility in future disasters if the requirement to purchase insurance is not met. -FEMA Response and Recovery Directorate Policy No. 9580.3,August 23,2000 • In other words, the law expects public agencies to be fully insured as a condition of receiving federal disaster assistance. Local Implementation Flood insurance information for the Town is provided in Section 4.3.4. A Program for Public Information is proposed as a new mitigation action for 2015. CRS Credit There is no credit for purchasing flood insurance, but the CRS does provide credit for local public information programs that explain flood insurance to property owners. Collier County, Marco Island and Naples all currently receive credit for Activity 330—Outreach Projects. Page 324 Collier County,Florida Floodplain Management Plan March 2015 a amec foster wheeler 011 Cer County 1 6 A 1 7 Property Protection Measures Conclusions: • There are several ways to protect properties from flood damage. The advantages and disadvantages of each should be carefully examined for that particular situation. • Property owners can implement some property protection measures at little cost, especially for sites in areas of low level flooding. • Property protection measures can protect the most flood-prone buildings in the County such as those which are repetitively flooded. Property Protection Measures Recommendations: • Encourage homeowners to take responsibility for protecting their own properties by providing retrofitting advice and assistance. • Develop a Program for Public Information involving Collier County,Marco Island and Naples. • Target Repetitive loss properties by leveraging,local, state,and federal funding opportunities. B.4.3 Natural Resource Protection Resource protection activities are generally aimed at preserving(or in some cases restoring)natural areas. These activities enable the naturally beneficial functions of fields,floodplains, wetlands, and other natural lands to operate more effectively. Natural and beneficial functions of watersheds, floodplains and wetlands include: • Reduction in runoff from rainwater and snow melt in pervious areas • Infiltration that absorbs overland flood flow • Removal and filtering of excess nutrients,pollutants and sediments • Storage of floodwaters • Absorption of flood energy and reduction in flood scour • Water quality improvement • Groundwater recharge • Habitat for flora and fauna • Recreational and aesthetic opportunities As development occurs, many of the above benefits can be achieved through regulatory steps for protecting natural areas or natural functions. This section covers the resource protection programs and standards that can help mitigate the impact of natural hazards, while they improve the overall environment. Seven areas are reviewed: • Wetland protection • Erosion and sedimentation control • Stream restoration • Best management practices • Dumping regulations • Urban forestry • Farmland protection Wetland Protection Wetlands are often found in floodplains and topographically depressed areas of a watershed. Many wetlands receive and store floodwaters,thus slowing and reducing downstream flows. They also serve as Page 325 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler Co ler County t6417 6 a natural filter, which helps to improve water quality, and they provide habitat for many species of fish, wildlife and plants. Local Implementation Goal 6 of the Conservation and Coastal Management Element of the County's Comprehensive Growth Management Plan is to "identify, protect, conserve and appropriately use its native vegetative communities and wildlife habitat. Objective 6.2 under this goal is to protect and conserve wetlands and the natural functions of wetlands. As the principal regulatory tool for implementing the objectives and policies in the Growth Management Plan, the County's Land Development Code contains wetland protection and preservation standards. Goal 1 of the Conservation and Coastal Management Element of the City of Marco Island's Comprehensive Growth Management Plan is to continue to protect,promote,and enhance the coastal and natural resources in and around the Marco Island community through prudent management, public education, appropriate regulations and enforcement, and active partnerships with all other interested parties. Objective 1.8 under this goal is to ensure identified and potential wetlands are protected from unlawful, intrusive actions which could result in environmental damage or degradation. The Plan contains 12 policies and measurement criteria to meet this Objective. The City of Marco Island's Land Development Code contains wetland protection standards that implement the GMP policies and objectives. Goal 1 of the Conservation and Coastal Management Element of the City of Naples Comprehensive Plan is to preserve, protect, and, where necessary, restore or enhance the resources of the City's coastal zone. Policy 1-8 under this goal is to continue to implement the Naples Land Conservation Program using the Naples Land Conservation Trust Fund to acquire lands for conservation, preservation, restoration and maintenance of vital and significant resources and their biodiversity. These lands include: threatened natural lands, forest, upland and wetland communities, environmentally sensitive lands, lands that have been altered but are capable of being restored, improved or unimproved lands that may be useful and lands that contain conservation easements, scenic easements or any other similar designations, located within and adjacent to the City, for the benefit of present and future generations. The City of Naples's Land Development Code contains wetland protection standards that implement the GMP policies and objectives. CRS Credit There is credit for preserving open space in its natural condition or restored to a state approximating its natural condition. The credit is based on the percentage of the floodplain that can be documented as wetlands protected from development by ownership or local regulations. Collier County, Marco Island and Naples currently receive credit for Activity 420—Open Space Preservation. Erosion and Sedimentation Control Construction sites typically contain large areas of bare exposed soil. Surface water runoff can erode soil from these sites, sending sediment into downstream waterways. Erosion also occurs along stream banks and shorelines as the volume and velocity of flow or wave action destabilize and wash away the soil. Sediment suspended in the water tends to settle out where flowing water slows down. This can clog storm drains, drain tiles, culverts and ditches and reduce the water transport and storage capacity of river and stream channels, lakes and wetlands. When channels are constricted and flooding cannot deposit sediment in the bottomlands, even more sediment is left in the channels. The result is either clogged streams or increased dredging costs. Page 326 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler Co ler County 16 /U ? Not only are the drainage channels less able to perform their job, but the sediment in the water reduces light, oxygen and water quality, and often carries chemicals,heavy metals and other pollutants. Sediment has been identified by the US EPA as the nation's number one nonpoint source pollutant for aquatic life. There are two principal strategies to address these problems: minimize erosion and control sedimentation. Techniques to minimize erosion include phased construction, minimal land clearing, and stabilizing bare ground as soon as possible with vegetation and other soil stabilizing practices. If erosion occurs, other measures are used to capture sediment before it leaves the site. Silt fences, sediment traps and vegetated filter strips are commonly used to control sediment transport. Runoff from the site can be slowed down by terraces, contour strip farming, no-till farm practices, hay or straw bales, constructed wetlands, and impoundments (e.g., sediment basins and farm ponds). Slowing surface water runoff on the way to a drainage channel increases infiltration into the soil and reduces the volume of topsoil eroded from the site. Erosion and sedimentation control regulations mandate that these types of practices be incorporated into construction plans. The most common approach is to require applicants for permits to submit an erosion and sediment control plan for the construction project. This allows the applicant to determine the best practices for the site. Local Implementation Since June 2003 all sites disturbing 1 or more acres must have an "NPDES Construction General Permit" through the Florida Department of Environmental Protection. FDEP has been delegated authority by the EPA to administer and enforce the program. A Notice of Intent (NOI) must be filed with FDEP, and a copy of the NOI must be sent to Collier County Engineering Services Department at least 2 days before ground breaking for construction. Collier County also regulates and enforces control of sediment and other pollutants on construction sites under County Land Development Code, Division 3 with provision for site compliance inspections. Unlike the NPDES permit,County enforcement includes sites disturbing under 1 acre. CRS Credit Credit is available for the Erosion and Sediment Control (ESC) element under Activity 450 if the community requires that erosion and sediment control measures be taken on land that is disturbed during development. To receive ESC credit, the community's regulations must apply to all construction sites within the community. Collier County, Marco Island and Naples currently receive credit under the ESC element for Activity 450—Stormwater Management. Stream Restoration There is a growing movement that has several names, such as "stream conservation," "bioengineering," or "riparian corridor restoration." The objective of these approaches is to return streams, stream banks and adjacent land to a more natural condition, including the natural meanders. Another term is "ecological restoration," which restores native indigenous plants and animals to an area. A key component of these efforts is to use appropriate native plantings along the banks that resist erosion. This may involve retrofitting the shoreline with willow cuttings, wetland plants, or rolls of landscape material covered with a natural fabric that decomposes after the banks are stabilized with plant roots. In all,restoring the right vegetation to a stream has the following advantages: • Page 327 Collier County,Florida Floodplain Management Plan March 2015 amec 440 foster wheeler Colter County 1 6 17 • Reduces the amount of sediment and pollutants entering the water • Enhances aquatic habitat by cooling water temperature • Provides food and shelter for both aquatic and terrestrial wildlife • Can reduce flood damage by slowing the velocity of water • Increases the beauty of the land and its property value • Prevents property loss due to erosion • Provides recreational opportunities,such as hunting,fishing and bird watching • Reduces long-term maintenance costs Local Implementation The following restoration based goals can be found in the community's Comprehensive Growth Management Plan. Each goal has supporting objectives and policies upon which regulations can be based: Collier County Conservation and Coastal Management Element • To plan for the protection, conservation, management and appropriate use of the county's natural resources. • To protect the county's surface and estuarine water resources. • To conserve,protect and appropriately manage the county's fresh water resources. • To protect,conserve and appropriately use the county's mineral and soil resources. • To identify, protect, conserve and appropriately use the county's native vegetative communities and wildlife habitat. • To appropriately manage hazardous materials and waste to protect the county's populous and natural resources and to ensure the highest environmental quality. City of Marco Island Conservation and Coastal Management Element • To conserve and manage the environmental resources and man-made uses in the coastal area of Marco Island. • To conserve and manage the environmental resources and man-made uses in the coastal area of Marco Island. City of Naples Conservation and Coastal Management Element • Preserve, protect, and, where necessary, restore or enhance the resources of the coastal zone. Permit non-destructive uses of coastal resources only upon consideration of ecological,historical, cultural, and aesthetic factors, as well as the protection of human life and the limitation of public expenditures in areas subject to destruction by natural disasters. The Land Development Code Ordinances for Collier County, Marco Island and Naples contain natural resource protection and preservation standards which prevent vegetation removal and require setbacks and buffers. The Land Development Code is used to implement the policies and objectives set forth in the Growth Management Plan. CRS Credit Collier County, Marco Island and Naples currently receive credit for Activity 420 — Open Space Preservation. The CRS provides credit for preserving open space in its natural condition or restored to a state approximating its natural condition. There are also credits for channel setbacks, buffers and protecting shorelines. Page 328 Collier County,Florida Floodplain Management Plan March 2015 amec 4111 foster wheeler cot o ger County I. 6A 1 7 Best Management Practices Point source pollutants come from pipes such as the outfall of a municipal wastewater treatment plant. They are regulated by the US EPA. Nonpoint source pollutants come from non-specific locations and harder to regulate. Examples of nonpoint source pollutants are lawn fertilizers, pesticides, other chemicals, animal wastes, oils from street surfaces and industrial areas, and sediment from agriculture, construction, mining and forestry. These pollutants are washed off the ground's surface by stormwater and flushed into receiving storm sewers,ditches and streams. The term "best management practices" (BMPs) refers to design, construction and maintenance practices and criteria that minimize the impact of stormwater runoff rates and volumes, prevent erosion, protect natural resources and capture nonpoint source pollutants (including sediment). They can prevent increases in downstream flooding by attenuating runoff and enhancing infiltration of stormwater. They also minimize water quality degradation,preserve beneficial natural features onsite, maintain natural base flows,minimize habitat loss,and provide multiple usages of drainage and storage facilities. Local Implementation Collier County's stormwater collection system (called a Municipal Separate Storm Sewer System, or MS4) is covered under an NPDES Phase II MS4 Stormwater Permit (Permit ID FLR04E037). Elements of the Permit require the County to have a"Stormwater Management Program" (SWMP)that reasonably attempts to prevent pollution from entering the stormwater collection system from non-point sources. Elements of the NPDES SWMP cover 6 Minimum Control Measures (MCM). Each MCM has BMPs with measurable goals, schedule for implementation and completion. Construction site BMPs are required as part of the NPDES Construction General Permit on all sites disturbing 1 or more acres. Collier County also regulates and enforces control of sediment and other pollutants on construction sites under County Land Development Code,Division 3 with provision for site compliance inspections. The City of Naples is also covered under an NPDES Phase II MS4 Stormwater Permit (Permit ID FLRO4E080) which is managed under the City's Streets and Stormwater Department. Construction site BMPs are required as part of the NPDES Construction General Permit on all sites disturbing 1 or more acres. Furthermore, the City's Stormwater Ordinance establishes BMP guidelines in order to meet established pollutant removal standards as well as retention and detention standards in order to reduce the volume of stormwater runoff. CRS Credit Collier County, Marco Island and Naples currently receive credit under the Water Quality(WQ)element for Activity 450—Stormwater Management. To receive WQ credit, under Activity 450,the community's stormwater management regulations must either specify one or more measures or refer to BMPs as published in an official government reference. Dumping Regulations BMPs usually address pollutants that are liquids or are suspended in water that are washed into a lake or stream. Dumping regulations address solid matter, such as shopping carts, appliances and landscape waste that can be accidentally or intentionally thrown into channels or wetlands. Such materials may not pollute the water,but they can obstruct even low flows and reduce the channels'and wetlands'abilities to convey or clean stormwater. Many cities have nuisance ordinances that prohibit dumping garbage or other "objectionable waste" on public or private property. Waterway dumping regulations need to also apply to "non-objectionable" Page 329 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler ot Co ier County materials, such as grass clippings or tree branches, which can kill ground cover or cause obstructions in channels.Regular inspections to catch violations should be scheduled. Many people do not realize the consequences of their actions. They may, for example, fill in the ditch in their front yard without realizing that is needed to drain street runoff. They may not understand how regarding their yard, filling a wetland, or discarding leaves or branches in a watercourse can cause a problem to themselves and others. Therefore, a dumping enforcement program should include public information materials that explain the reasons for the rules as well as the penalties. Local Implementation Collier County, Marco Island and Naples do have ordinances in place which make it unlawful for anyone to deposit waste, grass, weeds, brush or other refuse in any street, ditch or watercourse, or on others' property,or on public property. It is also illegal to dispose of certain wastes in public sewers. CRS Credit Collier County, Marco Island and Naples currently receive credit for Activity 540 — Drainage System Maintenance. Credit is provided under the Stream Dumping Regulations (SDR) element if the community has and publicizes regulations prohibiting dumping in streams and ditches. Farmland Protection Farmland protection is an important piece of comprehensive planning and zoning throughout the United States. The purpose of farmland protection is to provide mechanisms for prime, unique, or important agricultural land to remain as such, and to be protected from conversion to nonagricultural uses. Frequently, farm owners sell their land to residential or commercial developers and the property is converted to non-agricultural land uses. With development comes more buildings, roads and other infrastructure. Urban sprawl occurs, which can lead to additional stormwater runoff and emergency management difficulties. Farms on the edge of cities are often appraised based on the price they could be sold for to urban developers. This may drive farmers to sell to developers because their marginal farm operations cannot afford to be taxed as urban land. The Farmland Protection Program in the United States Department of Agriculture's 2002 Farm Bill (Part 519) allows for funds to go to state, tribal, and local governments as well as nonprofit organizations to help purchase easements on agricultural land to protect against the development of the land. Eligible land includes cropland, rangeland, grassland, pastureland, or forest land that is part of an agricultural operation. Certain lands within historical or archaeological resources are also included. The hazard mitigation benefits of farmland protection are similar to those of open space preservation: • Farmland is preserved for future generation, • Farmland in the floodplain keeps damageable structures out of harm's way • Farmland keeps more stormwater on site and lets less stormwater runoff downstream • Rural economic stability and development is sustained • Ecosystems are maintain,restored or enhanced • The rural character and scenic beauty of the area is maintained Page 330 Collier County,Florida Floodplain Management Plan March 2015i amec rl foster wheeler Co ler County 16A17 Local Implementation The Rural Land Stewardship Area (RLSA) program was established by Collier County's Land Development Code 4.08.00 in conformity with the Growth Management Plan. The purpose of the program is to encourage smart growth patterns in rural areas of the county per the GMP. Collier County's objective is to create an incentive based land use overlay system, referred to as the Collier County Rural Lands Stewardship Area Overlay, based on the principles of rural land stewardship as defined in Chapter 163.3177.(11), Florida Statutes. Group 2 Policies protect agricultural lands from premature conversion to other uses and continue the viability of agricultural production through the Collier County Rural Lands Stewardship Area Overlay. According to the Future Land Use Element of the City of Naples Growth Management Plan, there is no agricultural land within the City. CRS Credit Collier County, Marco Island and Naples currently receive credit for Activity 420 — Open Space Preservation. The CRS provides credit for preserving open space in its natural condition or restored to a state approximating its natural condition. Natural Resource Protection Measures Conclusions: • A hazard mitigation program can use resource protection programs to support protecting natural features that can mitigate the impacts of flooding. • Collier County, Naples and Marco Island ordinances prohibit illicit discharges into public drainage areas or onto public or private property. • Preserving open space and natural areas will serve to benefit the natural resource areas and protect natural occurring processes and help to protect certain species of plants and animals. Natural Resource Protection Measures Recommendations • Collier County, Marco Island and Naples should identify additional parcels that will not be well suited for development and encourage a public/private partnership to maintain them as open space. • Collier County, Marco Island and Naples should target outreach to its residents on the benefits of natural resource protection including nonpoint source pollution prevention. • Collier County, Marco Island and Naples should require landscaper certification and require that landscapers be registered with the community. B.4.4 Emergency Services Measures Emergency services measures protect people during and after a disaster. A good emergency management program addresses all hazards, and it involves all local government departments. At the state level, emergency services programs are coordinated by the Florida Department of Emergency Management (FDEM). Locally, Collier County's emergency services are coordinated by the Collier County Emergency Management Department and Bureau of Emergency Services. This section reviews emergency services measures following a chronological order of responding to an emergency. It starts with identifying an impending problem (threat recognition) and continues through post-disaster activities. Threat Recognition Page 331 Collier County,Florida Floodplain Management Plan March 2015 amecliW foster wheeler Cor County1 611 t The first step in responding to a flood is to know when weather conditions are such that an event could occur. With a proper and timely threat recognition system,adequate warnings can be disseminated. The National Weather Service (NWS) is the prime agency for detecting meteorological threats. Severe weather warnings are transmitted through NOAA's Weather Radio System. Local emergency managers can then provide more site-specific and timely recognition after the Weather Service issues a watch or a warning. A flood threat recognition system predicts the time and height of a flood crest. This can be done by measuring rainfall, soil moisture, and stream flows upstream of the community and calculating the subsequent flood levels. On smaller rivers and streams, locally established rainfall and river gauges are needed to establish a flood threat recognition system. The NWS may issue a "flash flood watch." This is issued to indicate current or developing hydrologic conditions that are favorable for flash flooding in and close to the watch area, but the occurrence is neither certain nor imminent. These events are so localized and so rapid that a "flash flood warning" may not be issued, especially if no remote threat recognition equipment is available. In the absence of a gauging system on small streams, the best threat recognition system is to have local personnel monitor rainfall and stream conditions. While specific flood crests and times will not be predicted,this approach will provide advance notice of potential local or flash flooding. Local Implementation Flood Threat Recognition comes to the Emergency Management Department via several sources: 1. Through the National Weather Service Office via its products: Flash Flood Warning and Flood Warning.The difference between"Flash Flood" and"Flood" is that the first is for flooding which occurs within 6 hours of the causative event(rain),while the second is for residual flooding greater than 6 hours after the end of the rain. 2. South Florida Water Management District's Big Cypress Basin-In order to provide more efficient flood protection services to residents,Big Cypress Basin staff worked with modeling, scientific data and information systems staff together developed a real-time flood modeling and decision-making support system for operation of the water control gates.The project uses the Basin's real-time meteorological and hydrologic data for surface and groundwater levels and gate positions to model and forecast both surface water and groundwater stages,and provide flood warning and real-time decision-making information to the field staff to operate the control gates accordingly.The information on real-time surface and ground water levels,flows,rainfall,gate positions and forecasted water levels are available through the following URL: http://mv.sfwmd.gov/floodwatch/index.htm. 3. Florida Division of Emergency Management(FDEM),the State Watch Office(SWO): FDEM has a staff meteorologist who could also be made available to the county and/or who also would issue flood—threat advisories to affected counties. CRS Credit Collier County, Marco Island and Naples currently receive credit for Activity 610 — Flood Warning Program. Credit can be received for using National Hurricane Center warnings and river flood stage predictions for the NWS's gages. The actual score is based on how much of the community's floodplain is affected by these systems. Warning The next step in emergency response following threat recognition is to notify the public and staff of other agencies and critical facilities. More people can implement protection measures if warnings are early and include specific detail. Page 332 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler Collier County 1 6 A 1 7 The NWS issues notices to the public using two levels of notification: • Watch: conditions are right for flooding,thunderstorms,tornadoes or winter storms. • Warning: a flood,tornado,etc.,has started or been observed. A more specific warning may be disseminated by the community in a variety of ways. The following are the more common methods: • Commercial or public radio or TV stations • The Weather Channel • Cable TV emergency news inserts • Telephone trees/mass telephone notification • NOAA Weather Radio • Tone activated receivers in key facilities • Outdoor warning sirens • Sirens on public safety vehicles • Door-to-door contact • Mobile public address systems • Email notifications Multiple or redundant systems are most effective - if people do not hear one warning, they may still get the message from another part of the system. Each has advantages and disadvantages: • Radio and television provide a lot of information,but people have to know when to turn them on. They are most appropriate for hazards that that develop over more than a day, such as a tropical storm,hurricane,or winter storm. • NOAA Weather Radio can provide short messages of any impending weather hazard or emergency and advise people to turn on their televisions for more information, but not everyone has a Weather Radio. • Outdoor warning sirens can reach many people quickly as long as they are outdoors. They do not reach people in tightly-insulated buildings or those around loud noise, such as at a factory,during a thunderstorm, or in air conditioned homes. They do not explain what hazard is coming, but people should know to turn on a radio or television when they hear the siren. • Automated telephone notification services are also fast, but can be expensive and do not work when phone lines are down. Nor do they work for unlisted numbers, call screening services, or cellular service,unless people sign up for notifications. Just as important as issuing a warning is telling people what to do in case of an emergency. A warning program should include a public information component. Local Implementation The Collier County Flood Warning Program describes the various types of flooding that could occur and provides procedures for disseminating warning information and for determining, assessing and reporting the severity and magnitude of flooded areas. The County Emergency Management Office administers/disseminates flood warning information to the municipalities and all response operations are conducted under the authority of the Collier County Comprehensive Emergency Management Plan. Page 333 Collier County,Florida Floodplain Management Plan March 2015 `+- amec foster wheeler CoYer County ' � � 7 . The National Weather Service Office (NWSO), Miami, will issue flood advisory, watches and warning information to both Government and the citizens. The State Watch Office will follow-up the NWSO's warning information with direct contact with the local Emergency Management Office(duty hours)or the Collier Sheriff's Office(non-duty hour warning point). South Florida Water Management District's Big Cypress Basin office possesses real-time hydrologic data on its canal system so as to enable it run real-time flood modeling and decision-making support system for operation of the water control gates. Collier County does not have any major rivers, there are no stream profiles on the FEMA Flood Insurance Rate Map (FIRM), and rainfall-induced flooding produces very slow moving sheet-flow conditions that are shallow but can be broad in aerial extent. CRS Credit Collier County, Marco Island and Naples currently receive credit for Activity 610 — Flood Warning Program. Community Rating System credits are based on the number and types of warning media that can reach the community's flood prone population. Depending on the location, communities can receive credit for the telephone calling system and more credits if there are additional measures, like telephone trees. StormReady The National Weather Service established the StormReady program to help local governments improve the timeliness and effectiveness of hazardous weather related warnings for the public. To be officially StormReady,a community must: • Establish a 24-hour warning point and emergency operations center • Have more than one way to receive severe weather warnings and forecasts and to alert the public • Create a system that monitors weather conditions locally • Promote the importance of public readiness through community seminars • Develop a formal hazardous weather plan,which includes training severe weather spotters and holding emergency exercises Being designated a StormReady community by the National Weather Service is a good measure of a community's emergency warning program for weather hazards. It is also credited by the CRS. Local Implementation Collier County and the City of Marco Island are currently designated as StormReady communities. CRS Credit Collier County, Marco Island and Naples currently receive credit for Activity 610 — Flood Warning Program. Being designated as a StormReady community can provide additional credits. Response The protection of life and property is the most important task of emergency responders. Concurrent with threat recognition and issuing warnings, a community should respond with actions that can prevent or reduce damage and injuries. Typical actions and responding parties include the following: • Activating the emergency operations center(emergency preparedness) • Closing streets or bridges (police or public works) • Shutting off power to threatened areas(utility company) Page 334 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler Co ier County 1 6 A 1 7 • Passing out sand and sandbags(public works) • Holding children at school or releasing children from school(school superintendent) • Opening evacuation shelters(the American Red Cross) • Monitoring water levels(public works) • Establishing security and other protection measures(police) An emergency action plan ensures that all bases are covered and that the response activities are appropriate for the expected threat. These plans are developed in coordination with the agencies or offices that are given various responsibilities. A flood stage forecast map shows areas that will be under water at various flood stages. Different flood levels are shown as color coded areas, so the emergency manager can quickly see what will be affected. Emergency management staff can identify the number of properties flooded, which roads will be under water, which critical facilities will be affected, and who to warn. With this information, an advance plan can be prepared that shows problem sites and determines what resources will be needed to respond to the predicted flood level. Emergency response plans should be updated annually to keep contact names and telephone numbers current and to ensure that supplies and equipment that will be needed are still available. They should be critiqued and revised after disasters and exercises to take advantage of the lessons learned and of changing conditions. The end result is a coordinated effort implemented by people who have experience working together so that available resources will be used in the most efficient manner possible. Local Implementation The County bears the initial responsibility for warning the public of a threat, disaster response and recovery operations. As a corollary to this principal, each level within local government will accomplish the functions for which it is responsible, requesting relief from the next higher level of government only after resources at that level are inadequate to respond to the flood emergency or disaster. Requests for assistance will be made to the Florida Division of Emergency Management only after the Board of County Commissioners has declared a State of Local Emergency. When conditions are favorable for flooding from either storm surge flooding or from fresh water flooding from abnormally high amount of precipitation over a short period of time, the following actions will be taken by the agencies listed below: Agency Action Responsibility SFWMD's Big Cypress Office 1. Monitor and/or run the Real-time Hydrologic Monitoring& Modeling system. 2. Keep the EOC informed of flooding threats and trends as they occur. Emergency Management(ESF-5) 1. To staff the Emergency Operations Center as the situation dictates. 2. Maintain the emergency contact name/number listing for those responsible for day-to-day operation of a facility/activity. 3. To notify all primary respondents as the situation dictates. 4. To advise the public of the situation through local radio and TV announcements. Page 335 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler Co Ter County 16A17 5. To keep the Division of Emergency Management and other state agencies and adjacent counties informed of the situation. 6. Establish/maintain communications and warning capabilities with Collier County's Critical Facilities. School Board(ESF-6) 1. To provide shelter and bus transportation upon request from the Emergency Operations Center. American Red Cross(ESF-6) 1. To provide damage assessment information. 2. To provide manpower and supplies for opening and operation of shelters and to coordinate with Emergency Management Department regarding the timing of such openings consistent with the dangers facing the people who will occupy the shelter. 3. To provide Mobile Feeding. 4. To provide immediate human needs relief,e.g., shelter,food, clothing etc. Collier County Sheriff's Office(ESF-16) 1. To provide traffic control and security for those in the flood threatened area and shelter security. Fire/Rescue Districts(ESF-4) 1. To provide fire control and suppression throughout the County. 2. To provide rescue service as needed. 3. To provide fire safety control at each shelter. 4. To alert and coordinate Community Emergency Response Team (CERT)responses. Collier County EMS(ESF-8) 1. To provide ambulance/rescue service. 2. To provide first-aid support at each shelter. Growth Management Division(Traffic Operations)(ESF-3) 1. To assist in traffic control from the threatened area to safe refuge. 2. To assist in performing flood control measures. 3. To install traffic barriers to prevent non-essential traffic from entering flooded areas. Growth Management Division(ESF-3) 1. To control water flow levels in all canals maintained by the County. 2. To conduct post-flooding analysis/mapping. 3. Issue special building permits for post-construction activities. Collier County Health Dept. (ESF-8) 1. To provide health and environmental health services Page 336 Collier County,Florida Floodplain Management Plan March 2015 amec 4 foster wheeler 16A171 Copier Count y ESF-2(Communications) 1. To provide emergency communications support between the E.O.C., hospitals,and public shelters. Salvation Army(ESF-6) 1. To provide mobile feeding sites. Other Response Elements 1. SkyWarn Spotter Network: In support of the National Weather Service Office, Miami, Collier County conducts hazardous weather spotter training to residents annually, or upon special request of the Emergency Management Office. At this time, there are over 150 trained spotters. The spotters receive regular weather information updates from the EOC,via E-mail,and through the other media. 2. Emergency Email Network (www.emergencyemail.org): This service automatically retransmits the NWS's text weather warning products related to Collier County. Recipients of this free service can subscribe any or all their electronic instruments to it. Additionally, the EOC has the ability to transmit special statements via this service to all subscribers. 3. Emergency Alerting System: The EOC has drafted an operating procedure, agreed upon by the NWS, Miami, for activating the Emergency Alerting System and thereby transmits warning and instructions via the weather radio, TV, radio, and cable media. Not only is the general public alerted, so are the specialized teams,e.g.,SkyWarn and Amateur radio,CERTs. CRS Credit . Collier County, Marco Island and Naples currently receive credit for Activity 610 — Flood Warning Program. Flood Response Operations (FRO) credit is based on the extent of coverage and level of detail that the community's flood warning and response plan provides for the flood response operations. For full credit, the plan needs to a) describe the actions to be taken, b) identify the office or official responsible for the action,c3) define the time needed to carry out the activity, and d)contain other critical information that designated agencies and organizations will need in order to perform their assigned responsibilities. Bonus credit is provided if there is a list of the personnel, equipment, facilities, supplies and other resources needed to complete each task. Evacuation and Shelter There are six key components to a successful evacuation: • Adequate warning • Adequate routes • Proper timing to ensure the routes are clear • Traffic control • Knowledgeable travelers • Care for special populations (e.g., the handicapped, prisoners, hospital patients, and schoolchildren) Those who cannot get out of harm's way need shelter. Typically, the American Red Cross will staff a shelter and ensure that there is adequate food, bedding, and wash facilities. Shelter management is a specialized skill. Managers must deal with problems like scared children, families that want to bring in their pets,and the potential for an overcrowded facility. Page 337 Collier County,Florida Floodplain Management Plan March 2015 amec ilM foster wheeler Coir Count ? 6A17 y Local Implementation There are no permanently established evacuation zones in Collier County. Evacuation zone information is communicated to the public based on a real-time storm's threat using Collier County's roadways for mandatory evacuation zone reference. The Collier County 2014 All Hazards Guide encourages residents to stay tuned to local radio & TV for the list of shelters to be opened and the time of opening. Refuges will generally open concurrent with evacuation orders. The Collier Area Transit (CAT) mass transportation system will be made available to transport people to shelters using the established routes & stops. Collier County emergency shelters are shown in the figure below. I'"'"°'""'I EVACUATION AREAS • 1.5 3 6 eMlbs /+moi-- O When a storm threatens, I 0 evacuation areas will be defined by known landmarks, e.g.,roads or communities. e� Please monitor your local media for up-to-date I 12 s n'4s information. If you have the �- sn.n.n _ R ' Internet available,go to: I ,. _02515 '-----_'_ r htip7Avww.CollierEM.org )140 I1I �N � Evacuotion �aL.7h O,r.Ned..Hs & yQ p...n.es Sheller Irrtormatton 6 e.iN S W PNiNX.RYq HS Spec N..Ys 0 1.W �ttlinam. Zi, ,. For hazardous weather ell * O el.s.l.nrM.r HS O v, carMitiona,people residing in 2a H.,N„a.Is «..Ns O hi° ying areas and in moble i e ae. O 2,.L..mere Es home parks should consider J is 5 2a O 0+,Waal.Hs seeking sate shelter when 0 a.c.+.�Rnus O 2z.c....cow m.*.. conditions warrant. , 111.1114‘11: V „ - O N,y.molYY.ua O a.vNmr win r_s When an evacuation Is �,,p, O 24 N.N.dx us ordered and you are in NOM Not til...Mos MI,M opened, O.6,O.b.ee MC the affected area requiring � nped ed..meenvn.r.mrysn.edtQnrv. 025 Fier.t5 transportation to a shelter, ofIt a btNlmeseeN..1* det �°Oea ESO a.Edon pat rs the Collier Area Transit ..,,ps to-....Coir nw.e y ror O Cli en HS (CAT)mass transportation p.Nic.0.Ner tptnit'and ee,w C' © deterf.nt7ln1e.Intdte. O O 27 Ley... service will pick up evacuees 6 10'L°vM8 .� Ssalong their normal routes and ne•shaded ref on Ns mrp epewms 0,,co..nreus 0' stops. t eworeloere honker.Nmm surge O 2..ImmxdeeFomlo,pHv v.,;,,, model nn for 41dhlIing storms up to end 012.....P.." Jaguar's s en adithns,, Slire In tilt ea,yo.need to him 2 hurricane.II you �'o'so _s Ocostilw.ww.r..Nour Collier lntormatlon Center a erusatise pier end listen to theemng.ncy O,,cyN..e p..„us O s,44c..,,,..p.„ phone bank wilt be opened f elfiel.bfor MAW instructions. to answer your questions. 0,5 Lawitl Woven•S 0'..1.•""^type* Call 3-1-1 or 252-8444 t\ O 16.VMY.tt. =0a supe Roo. " E gam5,eevms..Ney PET SHELTER: For pet ►I..."' —shelter information call Collier's or A* v `kSF. Domestic Animal Sys.a Gift 'r! _ 252-7387. Figure B.2—Collier County Emergency Shelters CRS Credit Because it is primarily concerned with protecting insurable buildings, the CRS does not provide any special credit for evacuation or sheltering of people (minimal credit is given in Activity 510- Floodplain Management for evacuation policies and procedures). It is assumed that the emergency response plan would include all necessary actions in response to a flood. Post-Disaster Recovery and Mitigation After a disaster, communities should undertake activities to protect public health and safety and facilitate recovery. Appropriate measures include: • Patrolling evacuated areas to prevent looting • Providing safe drinking water • Monitoring for diseases • Vaccinating residents for tetanus and other diseases Page 338 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler Co 111* er Countyr-i 7 • Clearing streets • Cleaning up debris and garbage Following a disaster, there should be an effort to help prepare people and property for the next disaster. Such an effort would include: • Public information activities to advise residents about mitigation measures they can incorporate into their reconstruction work • Evaluating damaged public facilities to identify mitigation measures that can be included during repairs • Identifying other mitigation measures that can lessen the impact of the next disaster • Acquiring substantially or repeatedly damaged properties from willing sellers • Planning for long-term mitigation activities • Applying for post-disaster mitigation funds Local Implementation The Collier County 2014 All Hazards Guide provides post-disaster recovery considerations including safety precautions and storm debris cleanup guidelines. Regulating Reconstruction Requiring permits for building repairs and conducting inspections are vital activities to ensure that damaged structures are safe for people to reenter and repair. There is a special requirement to do this in floodplains, regardless of the type of disaster or the cause of damage. The NFIP requires that local officials enforce the substantial damage regulations. These rules require that if the cost to repair a building in the mapped floodplain equals or exceeds 50% of the building's market value, the building must be retrofitted to meet the standards of a new building in the floodplain. In most cases, this means that a substantially damaged building must be elevated above the base flood elevation. Local Implementation The Floodplain Management Ordinances for Collier County, Marco Island and Naples require that substantial improvement of any residential building (including manufactured home) shall have the lowest floor,including basement,elevated to no lower than the BFE. CRS Credit The CRS does credit post-disaster mitigation procedures if the policies and procedures are incorporated into a flood mitigation or multi-hazard plan through Activity 510-Floodplain Management Planning. Emergency Services Measures Conclusions: • The Collier County Emergency Management Department performs most emergency management functions for the County. • The 2012 Collier County Comprehensive Emergency Management Plan has been adopted by resolution by Collier County,City of Marco Island and City of Naples. Emergency Services Measures Recommendations: • The Collier County Emergency Management Department should work to identify vulnerable populations for evacuation purposes. Page 339 Collier County,Florida Floodplain Management Plan 41 March 2015 amec foster wheeler Cor County I 6 A 17 • The Collier County Emergency Management Department should work to identify and protect critical facilities and infrastructure that are potentially exposed to flood damage. B.4.5 Structural Projects Four general types of flood control projects are reviewed here: levees, reservoirs, diversions, and dredging. These projects have three advantages not provided by other mitigation measures: • They can stop most flooding,protecting streets and landscaping in addition to buildings • Many projects can be built without disrupting citizens'homes and businesses • They are constructed and maintained by a government agency, a more dependable long-term management arrangement than depending on many individual private property owners However, as shown below, structural measures also have shortcomings. The appropriateness of using flood control depends on individual project area circumstances. • Advantages o They may provide the greatest amount of protection for land area used o Because of land limitations,they may be the only practical solution in some circumstances o They can incorporate other benefits into structural project design, such as water supply and recreational uses o Regional detention may be more cost-efficient and effective than requiring numerous small detention basins • Disadvantages o They can disturb the land and disrupt the natural water flows,often destroying wildlife habitat o They require regular maintenance o They are built to a certain flood protection level that can be exceeded by larger floods o They can create a false sense of security o They promote more intensive land use and development in the floodplain Levees and Floodwalls Probably the best known flood control measure is a barrier of earth(levee)or concrete(floodwall)erected between the watercourse and the property to be protected. Levees and floodwalls confine water to the stream channel by raising its banks. They must be well designed to account for large floods,underground seepage, pumping of internal drainage, and erosion and scour. Key considerations when evaluating the use of a levee include: • Design and permitting costs • Right of way acquisition • Removal of fill to compensate for the floodwater storage that will be displaced by the levee • Internal drainage of surface flows from the area inside the levee • Cost of construction • Cost of maintenance • Mitigation of adverse impacts to wetlands and other habitats • Loss of river access and views Page 340 Collier County,Florida Floodplain Management Plan March 2015 amec 44p- foster wheeler Co ger County 16A17 • Creating a false sense of security,because while levees may reduce flood damage for smaller more frequent rain events,they may also overtop or breach in extreme flood events and subsequently create more flood damage than would have occurred without the levee Reservoirs and Detention Reservoirs reduce flooding by temporarily storing flood waters behind dams or in storage or detention basins. Reservoirs lower flood heights by holding back, or detaining, runoff before it can flow downstream. Flood waters are detained until the flood has subsided,and then the water in the reservoir or detention basin is released or pumped out slowly at a rate that the river can accommodate downstream. Reservoirs can be dry and remain idle until a large rain event occurs. Or they may be designed so that a lake or pond is created. The lake may provide recreational benefits or water supply (which could also help mitigate a drought). Flood control reservoirs are most commonly built for one of two purposes. Large reservoirs are constructed to protect property from existing flood problems. Smaller reservoirs, or detention basins, are built to protect property from the stormwater runoff impacts of new development. Diversion A diversion is a new channel that sends floodwaters to a different location, thereby reducing flooding along an existing watercourse. Diversions can be surface channels, overflow weirs, or tunnels. During normal flows, the water stays in the old channel. During floods, the floodwaters spill over to the diversion channel or tunnel,which carries the excess water to a receiving lake or river. Dredging Dredging is often viewed as a form of conveyance improvement. However, it has the following problems: • Given the large volume of water that comes downstream during a flood,removing a foot or two from the bottom of the channel will have little effect on flood heights. • Dredging is often cost prohibitive because the dredged material must be disposed of somewhere. • Unless in-stream or tributary erosion is corrected upstream,the dredged areas usually fill back in within a few years, and the process and the expense have to be repeated. • If the channel has not been disturbed for many years,dredging will destroy the habitat that has developed. To protect the natural values of the stream, federal law requires a U.S. Army Corps of Engineers permit before dredging can proceed. This can be a lengthy process that requires a lot of advance planning and many safeguards to protect habitats,which adds to the cost of the project. Local Implementation Collier County, Marco Island and Naples do not currently receive credit for Activity 530 - Flood Protection. CRS Credit Structural flood control projects that provide 100-year flood protection and that result in revisions to the Flood Insurance Rate Map are not credited by the CRS in order to avoid duplicating the larger premium reduction provided by removing properties from the mapped floodplain. Page 341 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler Co ler Count y 16A17 The CRS credits smaller flood control projects that meet the following criteria: • They must provide protection to at least the 25-year flood • They must meet certain environmental protection criteria • They must meet federal, state and local regulations, such as the Corps of Engineers' 404 permit and State dam safety rules • They must meet certain maintenance requirements These criteria ensure that credited projects are well-planned and permitted. Any of the measures reviewed in this section would be recognized under Activity 530 - Flood Protection. Credit points are based on the type of project, how many buildings are protected, and the level of flood protection provided. Structural Projects Measures Conclusions: • Canal diversion projects and levees can be used to reduce over-drainage and improve water quality • Canal bank erosion can affect adjacent properties and create a situation where the canal does not function properly • Installing new outfalls can improve local street drainage in certain areas Structural Projects Measures Recommendations: • Improve drainage through the implementation of projects identified in the Capital Improvement Element of the Growth Management Plan • Work with the South Florida Water Management District and the Army Corps of Engineers on the Picayune Strand Restoration Project B.4.6 Public Information Outreach Projects Outreach projects are the first step in the process of orienting property owners to the hazards they face and to the concept of property protection. They are designed to encourage people to seek out more information in order to take steps to protect themselves and their properties. Awareness of the hazard is not enough; people need to be told what they can do about the hazard. Thus, projects should include information on safety, health and property protection measures. Research has shown that a properly run local information program is more effective than national advertising or publicity campaigns. Therefore, outreach projects should be locally designed and tailored to meet local conditions. Community newsletters/direct mailings: The most effective types of outreach projects are mailed or distributed to everyone in the community. In the case of floods, they can be sent only to floodplain property owners. News media: Local newspapers can be strong allies in efforts to inform the public. Local radio stations and cable TV channels can also help. These media offer interview formats and cable TV may be willing to broadcast videos on the hazards. Other approaches: Examples of other outreach projects include: Page 342 Collier County,Florida Floodplain Management Plan T. March 2015 amec foster wheeler ACo ler County , • Presentations at meetings of neighborhood,civic or business groups • Displays in public buildings or shopping malls • Signs in parks, along trails and on waterfronts that explain the natural features (such as the river) and their relation to the hazards(such as floods) • Brochures available in municipal buildings and libraries • Special meetings, workshops and seminars Local Implementation A community brochure is included in the local phone book and is mailed to all properties in the County on an annual basis. An outreach brochure is mailed annually to all properties in the SFHA. Repetitive Loss Properties have specific Flood Hazard information mailed to them annually. Properties in the vicinity of the Repetitive Loss Properties are also annually mailed Flood Hazard information. The County also displays flood information in public buildings and prints flood information in the phone book. An "All Hazards Guide" is updated and reprinted during May of each year for distribution to residents and guests of Collier County. Approximately 70,000 copies of this pamphlet are printed and distributed annually. Every effort is made to deliver this information to people living in flood-prone areas. Disaster related information is also provided to recipients of the local telephone system in their books. Special information programs have been established for people with special needs such as the elderly and the handicapped. These individuals are encouraged to pre-register with the Emergency Management Department who will advise them of their vulnerability to flooding and items that they should bring to a shelter in the event of an evacuation. The Emergency Management Department will also arrange for transportation to shelter if needed. CRS Credit Collier County,Marco Island and Naples currently receive credit under Activity 330—Outreach Projects as well as Activity 350—Flood Protection Information. Real Estate Disclosure Many times after a flood or other natural disaster, people say they would have taken steps to protect themselves if they had known they had purchased a property exposed to a hazard. There are some federal and state requirements about such disclosures: • Federal law: Federally regulated lending institutions must advise applicants for a mortgage or other loan that is to be secured by an insurable building whether the property is in a floodplain as shown on the Flood Insurance Rate Map. If so, flood insurance is required for buildings located within the floodplain if the mortgage or loan is federally insured. • State law: State laws set standards for real estate sales and licensing of agents and brokers. Local Implementation Collier County does not currently receive credit under Activity 340 — Hazard Disclosure for requiring local real estate agents to disclose flood hazards to prospective buyers. The City of Naples receives credit under the Real Estate Agents' Brochure(REB)element which provides points if real estate agents are providing brochures or handouts that advise potential buyers to investigate Page 343 Collier County,Florida Floodplain Management Plan March 2015 SaIW amec foster wheeler 1 6 Sj,9untynA17 the flood hazard for a property. Additional points are provided if the disclosure program is part of a Program for Public Information. The City of Marco Island also receives credit under the REB element as well as the Disclosure of the Flood Hazard (DFH) element which provides points if real estate agents notify those interested in purchasing properties located in the Special Flood Hazard Area (SFHA) about the flood hazard and the flood insurance purchase requirement. Additional points are provided if the disclosure program is part of a Program for Public Information. Libraries and Websites The two previous activities tell people that they are exposed to a hazard. The next step is to provide information to those who want to know more. The community library and local websites are obvious places for residents to seek information on hazards, hazard protection, and protecting natural resources. Books and pamphlets on hazard mitigation can be given to libraries, and many of these can be obtained for free from state and federal agencies. Libraries also have their own public information campaigns with displays, lectures and other projects, which can augment the activities of the local government. Today, websites are commonly used as research tools. They provide fast access to a wealth of public and private sites for information. Through links to other websites,there is almost no limit to the amount of up to date information that can be accessed on the Internet. In addition to online floodplain maps, websites can link to information for homeowners on how to retrofit for floods or a website about floods for children. Local Implementation Four of the ten public libraries in Collier County contain publications relating to flooding and flood protection, which include the Flood Insurance Study for Collier County and FIRMs. The four libraries are: Main (Headquarters) - 2385 Orange Blossom Drive, Naples Regional - 650 Central Avenue, Marco Island— 210 Heathwood Drive, South County Regional — 8065 Lely Cultural Parkway. These locations were selected because of their proximity to the coastal region and greater number of properties and persons. The Collier County, Marco Island and Naples's websites provide an extensive amount of information on hazards,hazard protection,and protecting natural resources. CRS Credit Collier County, Marco Island and Naples currently receive credit under Activity 350 —Flood Protection Information. The Community Rating System provides credits for having a variety of flood references in the local public library and for providing similar material on municipal websites. Technical Assistance Hazard Information Residents and business owners that are aware of the potential hazards can take steps to avoid problems or reduce their exposure to flooding. Communities can easily provide map information from FEMA's Flood Insurance Rate Maps (FIRMs) and Flood Insurance Studies. They may also assist residents in submitting requests for map amendments and revisions when they are needed to show that a building is located outside the mapped floodplain. Some communities supplement what is shown on the FIRM with information on additional hazards, flooding outside mapped areas and zoning. When the map information is provided, community staff can Page 344 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler Co ler County 1 6 A 17 explain insurance, property protection measures and mitigation options that are available to property owners. They should also remind inquirers that being outside the mapped floodplain is no guarantee that a property will never flood. Property Protection Assistance While general information provided by outreach projects or the library is beneficial, most property owners do not feel ready to retrofit their buildings without more specific guidance. Local building department staffs are experts in construction. They can provide free advice, not necessarily to design a protection measure, but to steer the owner onto the right track. Building or public works department staffs can provide the following types of assistance: • Visit properties and offer protection suggestions • Recommend or identify qualified or licensed contractors • Inspect homes for anchoring of roofing and the home to the foundation • Explain when building permits are needed for home improvements. Local Implementation FEMA's floodplain maps are available on Collier County's website, and the County responds to requests on whether a property is located in s Special Flood Hazard Area. Property protection measures are also included on the County's website. The County participates in a variety of Public Outreach Seminars, Exercises, Meetings and Training for various hazards that could impact Collier County property and citizens. County staff offer technical assistance and make site visits to review local flood concerns and drainage complaints. CRS Credit Collier County currently receives credit under Activity 360 —Flood Protection Assistance for providing site specific flood and flood related data to interested property owners and annually publicizing the service. Program for Public Information A Program for Public Information (PPI)is an ongoing public information effort to design and transmit the messages that the community determines are most important to its flood safety and the protection of its floodplains' natural functions. It is a review of local conditions, local public information needs, and a recommended plan of activities. A PPI consists of the following parts: • The local flood hazard • The property protection measures appropriate for the flood hazard • Flood safety measures appropriate for the local situation • The public information activities currently being implemented within the community, including those being carried out by non-government agencies • Goals for the community's public information program • The outreach projects that will be done each year to reach the goals • The process that will be followed to monitor and evaluate the projects Local Implementation The development of a PPI for Collier County including the City of Marco Island and the City of Naples is a newly proposed Mitigation Action as part of this 2015 FMP. CRS Credit Page 345 Collier County,Florida Floodplain Management Plan March 2015 PIM amec foster wheeler lCiP 17 er County The CRS provides credit for a PPI under Activity 330—Outreach Projects. Public Information Measures Conclusions: • Collier County, Marco Island and Naples have aggressive public awareness and outreach programs. • Collier County, Marco Island and Naples target citizens through their websites, news media, public meetings,neighborhood meetings, special events and mailings. Public Information Measures Recommendations: • Collier County should prepare a Program for Public Information(PPI)in conjunction with Marco Island and Naples. • Collier County should work to improve flood insurance coverage in the community. • Collier County should work with Insurance and Real Estate Agents to educate them on flood risk. Page 346 Collier County,Florida Floodplain Management Plan March 2015 amec 44 foster wheeler Co ler County 16 / 17 B.5 Mitigation Alternative Selection Criteria The process for evaluating mitigation alternatives is located in section 5.3. The following criteria were used to select and prioritize proposed mitigation measures: STPLE/E • Social: Does the measure treat people fairly? (different groups,different generations) • Technical:Will it work? (Does it solve the problem? Is it feasible?) • Administrative: Do you have the capacity to implement and manage project? • Political:Who are the stakeholders? Did they get to participate? Is there public support? Is political leadership willing to support? • Legal: Does the organization have the authority to implement? Is it legal?Are there liability implications? • Economic: Is it cost-beneficial?Is there funding?Does it contribute to the local economy or economic development? • Environmental: Does it comply with environmental regulations? Sustainable Disaster Recovery • Quality of life • Social equity • Hazard mitigation • Economic development • Environmental protection/enhancement • Community participation Land Use Planning • Infill versus sprawl • Efficient use of land resources • Full use of urban resources • Mixed uses of land • Transportation options • Detailed,human-scale design Other • Does measure address area with highest risk? • Does measure protect... o The largest#of people exposed to risk? o The largest#of buildings? o The largest#of jobs? o The largest tax income? o The largest average annual loss potential? o The area impacted most frequently? o Critical infrastructure • What is timing of available funding? Page 347 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler Cofer County 1 6 A 1 7 • What is visibility of project? • Community credibility Prioritization Process A thorough discussion of each mitigation category occurred. Then within each specific mitigation category, a variety of projects were discussed and debated. Consensus was reached on the specific projects identified in the mitigation action plan. The prioritization of High,Medium,and Low was reached based on the significance of the project and the overall impact to the goals and objectives of the plan. The FMPC was given this guidance for prioritization: Priority Classification Short Range = Project should be completed in less than one year Medium Range =Project should be completed in two to three years Long Range = Project should be completed in more than four years Page 348 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler 164j7County .........„....„.. APPENDIX C: REFERENCES Regional Assessment of Tsunami Potential in the Gulf of Mexico: U.S. Geological Survey Administrative Report. 2009. Sea Level Change Considerations for Civil Works Programs: United States Army Corps of Engineers Circular No. 1165-2-212. 2011. National Research Council 1987 National Research Council (1987)Responding to Changes in Sea Level: Engineering Implications.National Academy Press:Washington,D.C. IPCC, 2014. Climate Change 2014: Impacts, Adaptation, and Vulnerability. Contribution of Working Group II to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change. IPCC, 2007a. Climate Change 2007: The Physical Science Basis,Contribution of Working Group Ito the Fourth Assessment Report of the Intergovernmental Panel on Climate Change. (Solomon, S.,D. Qin,M. Manning,Z. Chen,M.Marquis,K.B. Averyt,M.Tignor, and H.L.A-2 EC 1165-2-212 1 Oct 11 Miller, eds.).Cambridge University Press,Cambridge,United Kingdom and New York,NY,USA. IPCC,2007b. IPCC Fourth Assessment Report Annex 1: Glossary. In: Climate Change 2007: The Physical Science Basis.Contribution of Working Group Ito the Fourth Assessment Report of the Intergovernmental Panel on Climate Change(Solomon, S.,D. Qin,M. Manning,Z. Chen,M.Marquis,K. B.Averyt,M. Tignor,and H.L.Miller,eds.).Cambridge University Press,Cambridge,United Kingdom and New York,NY,USA. IPCC, 2007c. Climate Change 2007: Impacts, Adaptation and Vulnerability. Contribution of Working Group II to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change." (M. L. Parry, O. F. Canziani,J. P.Palutikof, P.J. van der Linden and C. E. Hanson, eds.). Cambridge University Press,Cambridge,UK. Union of Concerned Scientists. Encroaching Tides: How Sea level Rise and Tidal Flooding Threaten U.S.East and Gulf Coast Communities over the Next 30 Years. October 2014. South Florida Water Management District. Climate Change & Water Management in South Florida. November 2009. SHELDUS,Hazards Research Lab,University of South Carolina, www.sheldus.org/,2014. National Oceanic and Atmospheric Agency (NOAA) National Climatic Data Center, Storm Events Database,2014. U.S.Bureau of the Census,Census 2010. Stockdon,H.F.,Doran, K.J.,Thompson,D.M., Sopkin, K.L., and Plant,N.G., 2013,National Assessment of Hurricane-Induced Coastal Erosion Hazards: Southeast Atlantic Coast: U.S. Geological Survey Open— File Report 2013-1130,28 p.,http://pubs.usgs.gov/of/2013/1130. National Oceanic and Atmospheric Agency(NOAA)Sea Levels Online,2014. Page 349 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler Co -►er County 1 6 A 1 7 U.S.Army Corps of Engineering,National Inventory of Dams, 2014. U.S. Army Corps of Engineering,National Levee Database, 2014. AMEC Data Collection Guide. Climate Central. 2014. Surgingseas.org/ Federal Emergency Management Agency,Community Information System, 2014. Federal Emergency Management Agency,What is a Levee Fact Sheet,August 2011. Department of Atmospheric Sciences at the University of Illinois at Urbana-Champaign. Global Climate Change Impacts in the United States. Karl,T.R.,J. M.Melillo, and T. C. Peterson(eds.). United States Global Change Research Program. Cambridge University Press, New York, NY, USA. 2009. Florida Department of Environmental Protection, Bureau of Beaches and Coastal Systems. Critically Eroded Beaches in Florida,2014. Page 350 Collier County,Florida Floodplain Management Plan March 2015 amec foster wheeler