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Forest Lakes MSTU Agenda 09/02/2014
FOREST ROADWAY and DRAINAGE M.S.T.U. ADVISORY COMMITTEE LAKES 3299 East Tamiami Trail-Suite 103,Naples,FL 34112 SEPTEMBER 2, 2014 AGENDA I. CALL TO ORDER II. ATTENDANCE III. APPROVAL OF AGENDA IV. APPROVAL OF MINUTES—AUGUST 5, 2014 V. BUDGET REPORT — DARRYL RICHARD VI. PROJECT REPORT—JIM CARR VII. LANDSCAPE MAINTENANCE REPORT—DARRYL RICHARD A. SHENANDOAH ESTIMATE B. HANNULA ESTIMATE C. BUE, INC. ESTIMATE VIII. OLD BUSINESS IX. NEW BUSINESS X. COMMITTEE MEMBER COMMENTS XI. PUBLIC COMMENTS XII. NEXT MEETING DATE XIII. ADJOURNMENT NEXT MEETING: OCTOBER 7,2014 Forest Lakes Condo Association Clubhouse 1058 Forest Lakes Drive, Naples, FL 3410 F F S ROADWA AN D DRAIN A.G i s . ,T. o S ADVISORY COMMITTEE 3299 East Tamiami Trail Suite 103 NAPLES,FL 34112 Minutes August 5,2014 I. Ribbon Cutting Ceremony A ribbon cutting ceremony was held at 10:00am for the turn Lane Improvement Project with the regular meeting being convened immediately thereafter. II. Call to Order Chairman Fogg called the meeting to order at 10:20am. A quorum was established. III. Attendance Members: George Fogg—Chairman, Dick Barry, Kevin McKyton, Kenneth Bloom, Marianne Fanning. County: Darryl Richard—Project Manager, Michelle Arnold -Director ATM Other: Scott Windham, - Windham Studio, Inc., David Durrell—JuriSolutions, Jim Carr-ABB Engineering, Deborah Cull -ABB Engineering. IV. Approval of Agenda Mr. McKyton moved to approve the Agenda subject to hearing item IX after item V. Second by Mr. Barry. Carried unanimously 5—0. V. Approval of Minutes—July 1,2014 Mr. Barry moved to approve the minutes of the July 1, 2014 meeting as presented. Second by Chairman Fogg. Carried unanimously 5—0. IX. Stormwater Study Report—Jim Carr—ABB Engineering Jim Carr and Deborah Cull provided a plan titled "Forest Lakes MSTUStormwater Study Existing Conditions Drainage Plan" dated 6/14 for information purposes. They reported: • They are conducting a study on the stormwater drainage system in the eastern portion of the community to determine any measures which may be taken to improve the existing conditions. • The are two main discharge points for the drainage system, a Swale and pipe system into lake#5 at the southwesterly corner of the development and a canal along the southerly side of the development served by an underground drainage pipe along the easterly side of the community. 1 • Their findings indicate the biggest issue is that the discharge pipe at the end of the swale from lake#16 to lake#5 cannot handle a large volume intense short term rainfall thereby "backing up"water in the system. Board Member/Staff and Consultant discussions concentrated on the following two items: Drainage Swale and Discharge Pipe southerly of Lake#16 • One option is to improve the swale on hole#3 from lake#16 to the discharge pipe into lake. #5. This would improve flow and increase the volume of stormwater to be held/transported during storm events. • The invert of discharge pipe is currently at the "control elevation"and any change to the pipe may be expensive and require permit amendments. Lake#14 Southerly Discharge Pipe • There is a plug in the discharge pipe located on the southerly side of Lake#14. • The discharge pipe runs southerly and discharges into basin 13 as depicted on the plan. • A majority of the water then travels through the pipe system along the easterly property line to the canal on the southerly side of the development. The remainder travels southwesterly into lake#16. • Removing this plug would provide some minor stormwater relief for the areas northerly of the lake while causing miniscule impact to areas south of the lake. The Board reported: • The development was constructed in the early 1970's absent of current stormwater design controls and permitting requirements. • The community will always face flooding issues given the original design of the development, but the goal of the MSTU is to remediate the flooding events lessening the length of time residents are inconvenienced. • Recent improvements to the system have assisted dramatically in improving stormwater conditions with the system "clearing out"generally 12— 18 hours after the event as opposed to "days." • Given reconstructing the whole system is a monumental expenses,the major consideration for the MSTU is determining the most effective measures that may be undertaken to lessen the impacts. • They sought recommendations from the consultants. Mr. Carr and Ms. Cull recommended: 1. Widening and deepening the swale where necessary at the south end of the development from Lake#16 southerly to the discharge pipe. 2. Removing the plug in the lake#14 discharge pipe. They reported they would need to conduct"modeling"to determine the impacts of the recommendations on the lake#5,the body of water ultimately receiving the discharges. 2 A third long term option would be providing additional storage areas (within golf course, etc.), however this would require additional permitting and be costly. Speakers Mark Swanson, long time resident reported the drainage is much improved and commended the MSTU on their work to remediate the existing stormwater conditions. The Board discussed the 3 options brought forth including the feasibility of each option. Mr. Bloom moved to request Staff and Consultants to undertake the necessary measures to formally identify the specifications for removing the "plug"from lake#14's discharge pipe and improving the swale, where required, (cleaning, widening, deepening, etc.), to improve drainage from lake#16 southwesterly to the outfall including the costs and results of the remediation measures and report back to the Committee. Second by Chairman Fogg. Carried unanimously 5-0. VI. Budget Report—Darryl Richard Mr.Richard provided the"Forest Lakes MSTU Fund 159—August 5, 2014"for information purposes. VII. Project Report—Scott Windham Mr. Windham provided the "Status Report—Re: Forest Lakes MSTU Bond Project F-58 Sidewalk Project Improvements Status Reports"for information purposes. He noted the items remaining are preparation of the"as built"plans and executing the"close out"document. The Committee recognized the efforts by Mr. Windham and the contractor in completing the improvement project. Mr. McKyton left the meeting at 11:20am VIII. Landscape Maintenance Report—Darryl Richard Mr.Richard submitted the"Maintenance Report for July 1, 2014 meeting" for information purposes. X. Old Business A. Bylaws Mr. Richard presented the final draft of the "Forest Lakes Roadway and Drainage Municipal Taxing District(MSTU)Advisory Committee Bylaws"for information purposes. He noted the Committee approved the Bylaws at a previous meeting and the members signed the document for the record. XI. New Business None XII. Committee Member Comments None 3 XIII. Public Comment Kosta Daginis,Pixiemoss Lane thanked the Committee for their work as the stormwater drainage system is vastly improved over previous years. He requested a Palm tree be planted in the cul—de—sac at Pixiemoss Lane. Sylvia Walker,Pixiemoss Lane endorsed Mr. Daginis's request for the planting of a tree. Mr. Bloom moved to authorize planting of a double Christmas Palm tree in the Pixiemoss Lane cul—de—sac. Second by Chairman Fogg. Carried unanimously 4—0. Lee Dixon,Turtle Lake Golf Colony Association,thanked the Committee for their work in completing the recent improvements. XIV. Next Meeting Date September 2,2014—Forest Lakes Condo Association Clubhouse, 1058 Forest Lakes Drive, Naples Fl,34110 There being no further business to come before the Committee, the meeting was adjourned by the Chair at 11:50 A.M. FOREST LAKES RAODWAY AND DRAINAGE MSTU ADVISORY COMMITTEE George Fogg,Chairman The Minutes were approved by the Committee on , as presented , or as amended . 4 FOREST LAKES MSTU FUND 159 September 2,2014 Vendor Item Poe Budget Commitments Expenditures Total 1 CUR AD VALOREM TAX $ (151.000 00) $ - $ 1145,504 32) $ (5 495 68) 2 DEL AD VALOREM $ - $ - $ - $ - 3 FIFTH THIRD 0/N INTEREST $ - $ - $ (177 60) $ 177.60 4 INVESTMENT INTEREST $ (2.50000) $ - $ (5.814 39) $ 3,314 39 5 INTEREST TAX COLLECTOR $ - $ - $ - $ - 6 REVENUE STRUCTURE $ (153.600.00) $ - $ (151,496.31) $ (2,003.69) 7 TRANSFERS FROM PROP APP $ - $ - $ - $ - 8 TRANSFERS FROM TAX COLL $ - $ - $ - $ - 9 CARRY FORWARD GEN $ (2,094.000 00) $ - $ S (2.094.000 00) 10 CARRY FOR OF ENCUMB AMT $ (11.877 80) $ - $ - $ 01.877 801 11 NEG 5%EST REV $ 7.70000 $ - $ - $ 7700.00 12 TRANSFERS E CONTRIB E (2,098,177.80) $ - $ - $ (2,098,177.80) 13 TOTAL REVENUE 8 (2,251,877.80) $ - $ (151,496.31) $ (2,100,181.49) 14 OTHER SALARIES $ 6 600 00 $ 6.59441 $ 559 15 PERSONAL SERVICES $ 6,600.00 $ - $ 6,594.41 $ 5.59 Agrwli Barber 8 Brundage Engineering Consul Serv. 45-147768 $ 4.250 00 Agnoll Barber 8 Brundage Engineering Consul Sues 45-150979 $ 17,774 60 ii J,ncharn Siud.c Annual Maint Consult Sery 45-147352 - $ 4 18`..... 16 ENG FEES $ 32,000.00 $ 4,005.40 $ 26,209.60 S 1,785.00 17 ABSTRACT FEES American Government Title Commitments 45-148016 $ 500 00 . 5 4.075.00 5 (3.625.00) 18 INDIRECT COST REIMBURS Collier County Indirect Cost Direct Pay S 18.500 00 . $ 18.500 00 $ 19 INTERDEPT CHARGES Collier County Real Property Easements Direct Pay $ - $ 4,195 56 S (4.195 561 Fonda l Land Maintenance Incidentals 45-147568 $ 1.75000 Ground Zero Incidentals 45-149291 $ 1,51875 20 LANDSCAPE INCIDENTALS $ 5,000.00 E 3,288.75 $ 1,577.60 Walker Exotic Tree Exotic Vegetation Removal 45-146372 $ 13.000 00 Florida Land Maintenance Grounds Maintenance 45-147568 $ 7.647 50 Bue.Inc Fence Repair 45-150885 $ 259 95 Ground Zero Base Level Maint,Serv. 45-149291 $ 6,389 25 Shenandoah Gen Coast Clean TV View Storm System 45-150899 $ - $ 2.256 Hannula Landscaping Clear Vegetation from Swales 45-149595 2 9 285 30 $ 22,037.39 21 OTHER CONTRACTUAL 8 72,300.00 $ 19.620.05 $ 51,590.34 $ 1,069.61 Horvath FCA-n1tjr,:i, Clean Lane Fountains 45-149762 $ - $ 13500 Wm Varian ConfAruclioi i UuSricate E h∎stall inlet,,,,t,1- 45-149868 $ - $ 3.25000 22 OTHER CONTRACTUAL SERV $ 3,300.00 S • $ 3,385.00 $ (65.00) 23 POST FREIGHT Collier County Purchasing Postage Direct Pay $ $ 10 78 S (10 78) FPL Electricity 47-001887 i Yi1[,.1 $ 7498.36 bentleyElectric E,ecc+caikepairs 45-150457 $ - $ 65000 24 ELECTRICITY $ 15,000.00 $ 1.601,64 $ 8,148.36 E 5,250.00 25 WATER AND SEWER City of Naples Water Usage at Forest Lakes 47-001482 $ 300 00 . . $ 88 20 S 10.001 26 RENT EQUIPMENT .1 M.Todd Shared Copier Lease 45-147422 $ 300 00 S 266 12 S 33.88 27 INSURANCE GENERAL Collier County Insurance General Direct Pay S 600.00 . $ 600 00 S - 28 SPRINKLER SYSTEM MAIN Florida Irrigation Sprinkler Maint 45-147284 $ 1.500 00 ; $ 72 60 $ 1..000 00 29 MULCH Forestry Resources Mulch 45-150135 $ 500 00 $ - $ (0.76) Southern Signal Eiec ncai Ret'ziis 45-148202 .. $ 230.00 Soutne•n Sign' i Iae..i,cal ken., 45.148270 - $ 80000 Simmonds Electrical of Napli Electrical Repairs 45-152406 1 E - 30 LIGHTING MAINTENANCE $ 10,000.00 $ 654.00 $ 1,030.00 S 8,316.00 31 PRINTING AND BINDING S 500 00 . $ - 5 500 00 32 LICENSES 8 PERMITS Permit Fee Direct Pay $ - - S 1,000 00 $ (1.000 00) 33 CLERKS RECORDING FEES Clerk of Courts Recording Fees Direct Pay S - - $ 341 60 S (341 60) 34 LEGAL ADVERTISING Naples Daily News Legal Ads 45-147297 $ 300 00 $ - $ - Juristaff Inc Secretarial Services 45-147272 $ $ 2.177 22 Juristaff Inc Secretarial Services 45-150258 7 1 500 00 Ferguson Enterprises Inlet Grates 45-150900 2 722 04.7 $ - 35 OTHER MISCELLANEOUS S 4,000.00 S 2.222.00 $ 2,177.22 5 (399.22) 36 OFFICE SUPPLIES Staples Office Supplies 45-147413 $ 30000 $ 48 42 $ 102 03 37 COPYING CHARGES J Todd Copier CPC 45-147480 $ - $ 200 00 5 (200.00) 38 FERT HERB CHEM Flonkan Fertilizer 45-147286 S 2.000 00 . $ - Si 1,500.00 Cecil's Copy Express Mailing Visa $ 1,489.40 Home Depot Tree Pruning Tool Visa $ 79 97 39 OTHER OPER SUPPLIES $ 300 00 S 1.569.37 $ (1,269.377) 40 OPERATING EXPENSE $ 167,200.00 $ 30,398.25 $ 128,774.92 $ 10,026.83 '4t3'±_ $ 1.057 50 Windham Studio L A Services for Phase 3 45-147601 . $ 18.462 50 Windham Studio L.A.Services tor Phase 2 45-149413 • $ 5,000 00 41 IMPROVEMENTS GENERAL $ 930,277.80 1",327 51' $ 787,056.70 $ 125,893.60 42 CAPITAL OUTLAY $ 930,277.80 $ 17,327.50 $ 787,056.70 $ 125,893.60 43 TRANS TO 111 UNINCOR $ 36.00000 $ - $ 3600000 S - 44 TRANS TO 259 FOREST LAKES DEBT $ 973.200 00 $ - $ 973.200 00 5 - 45 Budget Trans from Appraiser $ 3.200 00 $ - $ 1,370 11 $ 1.929 89 46 Budget Trans from Tar Collector $ 3.500 00 $ - $ 3,490 37 $ 9.63 47 TRANSFERS $ 1,015,900.00 $ - $ 1,014,060.48 $ 1,839.52 48 RESERVE FOR CAPITAL OUTLAY $ 131 70000 $ - $ - $ 131.700 00 49 RESERVES $ 131,700.00 $ - S - $ 131,700.00 50 TOTAL BUDGET $ 2,251,877.80 $ 47,725.75 $ 1,934,488.51 S 289,465.54 Total Available Balance $ 269,465.54 Plus Commited And Not Spent S 47,725.75 Estimated Cash $ 317,191.29 Estimated Cash Less Missing Income $ 311,895.81 176,314,609 FY 10 Final Taxable Value 546,604273 FY 11 Final Taxable Value 132,833.662 FY 12 Final Taxable Value 129,716.669 FY 13 Ocl Taxable Value 124677,661 FY 14 Oct Taxable Value 140.070.223 FY 15 July Certified 7 76% Mj.14 l0 15 Property Tax Limitation Impact FY 14 Gross Taxable Value 140,070,223 FY 16 FY 11 Debt Service Operations That Minus New Cost Annex 363 Mange 1.1022 1.1610 L7032 0.12101 SAMS Plus:Amendment 61 TV Component 0 404.160 76,36 476,160 Adr.Taxable Value 140,069 860 Extension 154.365 150.904 12 Levy 150.904 Rolled Back Rata(less Amend.One) 1.0773 Variance 76,960 02,300 91%of Roiled Hack Rale 0 9004 9I%of12480 10030 • DRAINAGE AND WATER MANAGEMENT ANALYSIS OF THE EAST PORTION OF FOREST LAKES Submitted to FOREST LAKES ROADWAY AND DRAINAGE MSTU Prepared by AGNOLI, BARBER& BRUNDAGE, INC. Professional Engineers, Planners& Land Surveyors 7400 Tamiami Trail North, Suite 200 Naples, FL 34108 James A. Carr, P.E. August 29, 2014 FOREST LAKES DRAINAGE AND WATER MANAGEMENT ANALYSIS Table of Contents Drainage and Water Management Analysis 1 EXHIBIT 1. SWMM Schematic—Existing Conditions 6 EXHIBIT 2. SWMM Schematic—Proposed Improvements#1#2A#213#3#5 7 EXHIBIT 3. SWMM Schematic—Proposed Improvements#1 8 EXHIBIT 4.,SWMM Schematic—Proposed Improvements#2A 9 EXHIBIT 5. SWMM Schematic—Proposed Improvements#213 10 EXHIBIT 6. SWMM Schematic—Proposed Improvements#3 11 EXHIBIT 7. SWMM Schematic—Proposed Improvements#5 12 EXHIBIT 8. Lake Hydrographs—Existing Conditions 13 EXHI BIT 9. Lake Hydrographs—Proposed#1 14 EXHIBIT 10. Lake Hydrographs—Proposed#1#2A 15 EXHIBIT 11. Lake Hydrographs—Proposed#1#2A#3 16 EXHIBIT 12. Lake Hydrographs—Proposed#1#2A#5 17 EXHIBIT 13. Existing Natural Swale Sections 18 EXHIBIT 14. Proposed Improvement Swale Sections 19 EXHIBIT 15. Comparison of Peak Stormwater Elevation 20 EXHIBIT 16. Engineer's Preliminary Opinion of Probable Cost—Proposed Improvement#1 21 EXHIBIT 17. Engineer's Preliminary Opinion of Probable Cost—Proposed Improvement#2A 22 EXHIBIT 18. Engineer's Preliminary Opinion of Probable Cost—Proposed Improvement#2B 23 EXHIBIT 19. Engineer's Preliminary Opinion of Probable Cost—Proposed Improvement#3 24 EXHIBIT 20. Engineer's Preliminary Opinion of Probable Cost—Proposed Improvement#5 25 FOREST LAKES DRAINAGE AND WATER MANAGEMENT ANALYSIS A. PURPOSE AND NARRATIVE The Forest Lakes development is a residential and golf course subdivision that was developed approximately 40 years ago. The site was designed and constructed in the early 1970s prior to the South Florida Water Management District jurisdiction and prior to modern stormwater design standards. Historically the property has experienced flooding issues throughout various locations, with more severe conditions at the north end of the site. The most recent report of flooding occurred during the summer in 2013 summer; the majority of Forest Lakes Boulevard and its intersections with Quail Forest Boulevard and Woodshire Lane were subject to stormwater staging anywhere from a few inches to as much as eighteen inches above the road. Some of the condominium parking lots and golf course fairways in the northeast portion of the site also experienced high water, particularly the areas surrounding Lake 18 and Lake 14. The study area for this stormwater analysis includes approximately the eastern half of the development and a portion of the south golf course to Lake#5. A comprehensive base map of the community was assembled including the roads,buildings,golf courses, swales, lakes and other site features. This information was taken from prior surveys and CAD files, new surveying of several golf course swales, prior permit drawings, recent storm videos, field observation/verification and aerials. The base map is a 3-dimensional representation of existing conditions that incorporates site elevations and terrain to approximate the water storage volumes and flow characteristics of the lakes, swales and pipes. The map shows elevation data by colors (reds and yellows are highest, then greens are mid-range, then blues are lowest). Based on the topographic and hydraulic conditions, existing areas were divided into drainage basins that represent the land area that contributes to each drainage node(such as a storm drain inlet,a swale,or a lake). A computer model was created using XP-SWMM software that links each of the basins to another, and sometimes links several basins together where pipes and swales are interconnected between multiple basins. The input data, a 25-year 72-hour storm, is simulated in the model and checked and balanced through many iterations to make sure that output data represents existing/observed conditions as best as practical. 1 B. EXISTING DRAINAGE SYSTEM PHYSICAL EVALUATION As part of the data collection,Agnoli,Barber,and Brundage, Inc.field verified locations of storm structures and viewed the storm videos that Shenandoah Construction prepared from October 2010. Generally the storm pipes appear to be functioning as intended and are in fair to good condition in most locations. There are a few areas of concern in order of significance: 1. There is a separated storm pipe under Woodshire Lane that will need repair soon. This is between inlets 13 and 14 which are at the south side of the Woodshire Lane/Forest Lakes Blvd intersection. The pipe separation is under the pavement at approximately the middle of the road. The pipe is separated at a joint and offset from the pipe alignment. The joint should be repaired with grout or a concrete collar. 2. There are multiple cracks and breaks in the pipe on the west side of Woodshire Lane, between inlets P15B and P15A. This is a pipe that runs under the driveway into the condominium and has mitered ends at both sides. There are several cracks with exposed steel,and there are roots growing through one of the pipe joints. If any settlement or pavement failures are noticed above the pipe,it will need to be repaired or partially replaced. 3. There are a few other pipes that have minor cracks or separations that appear to be functioning adequately and probably don't warrant attention at this time. These are CB-17 to P3, CB-19 to P9, P10B to P10A,CB-112 to P19,and the pipes between CB-21A and its mitered ends. C. EXISTING DRAINAGE SYSTEM HYDRAULIC EVALUATION To analyze the system and propose measures to improve the drainage, the existing conditions were modelled in XP-SWMM. The model schematic is shown in EXHIBIT 1. In the existing model we found (as expected) that during the storm event, high water occurs throughout the entire system with the highest water elevations occurring in the north along Forest Lakes Boulevard between Quail Forest Boulevard and Woodshire Lane. The water stages in Lake 18 and Lake 14 and surrounding areas remain elevated after the storm event. While Lake 15 and Lake 4 show comparably high stages at the peak hour of the event, they show considerably lower stages(faster drainage) soon after. Comparisons of storm hydrographs of these four lakes and of Basin 1 (Fairways 10/11/12) revealed that the existing structure at Basin 1 (JB7) drains very slowly into Lake 14, keeping Lake 14 and the interconnected Lake 18 higher for a longer time than Lakes 15 and 4. There is an existing structure with operable gate(CS 189/Link 40) in Lake 15B. The gate was open during the 2014 wet season and should remain open in the succeeding wet seasons 2 because it provides a direct route for the stormwater to discharge south down the Woodshire pipe to the existing outfall (Outfall 1).See EXHIBIT 8 for existing conditions storm hydrograph. After analyzing the model,three concerns were apparent:the outfall pipe from Lake 14 has a plug that is preventing water from flowing, the swales from Lakes 16 and 4 to Lake 5 are narrow and shallow and need improvement, and a golf course swale that runs north to south, parallel to the buildings along Woodshire Lane, is nearly nonexistent as well. The existing swale profiles are attached as EXHIBIT 13. D. PROPOSED HYDRAULIC IMPROVEMENTS Improvements were suggested for each issue and the proposed improvements were each given a corresponding number. The XP-SWMM model was then modified to reflect each proposed improvement, one at a time,and run to determine the results of the improvements. See EXHIBIT 2 for an overall view of all proposed improvements. Each proposed improvement is labeled separately on succeeding pages (EXHIBITS 3-7). The various improvements were also run in combinations and the results are compared to the existing conditions in EXHIBIT 15. 1. Proposed improvement #1 consists of opening the closed culvert running from Lake 14 to Basin 13 and Basin 14 as shown in EXHIBIT 3. The pipe was opened in the model to determine the effects on the golf course and Woodshire Lane conveyance systems. Opening the pipe decreased the maximum high water stage in many areas by one to two-tenths of a foot, but it increased the high water elevation at Basins 13a, 14, 15, 15b, 18a, and 18b (highlighted in EXHIBIT 15). The increase in maximum elevation at those basins was small. Comparing the Stormwater Hydrographs of the Lakes after before and after this improvement show that after the storm has passed,the lakes are draining more efficiently with the pipe open (see EXHIBITS 8 and 9). 2. Proposed Improvement #2A consists of regrading the swales from Lakes 16 and 4 to the cart path bridge as shown in EXHIBIT 4. The existing swale sections are labelled Link 88 and Link 89 in EXHIBIT 13. The swales are nearly non-existent with depths of only two feet in most areas and practically no side slopes. The proposed improvement was to create a 4.5-foot deep swale with a 3-foot wide bottom and 4:1 side slopes,as shown in EXHIBIT 14—TYPICAL SECTION PROPOSED SWALE #2A& B. The existing swale sections were replaced with the proposed section. The model was run with both the pipe open as per Improvement#1 and the swales improved as per Improvement#2, resulting in 3 marked improvement, including a tenth of a foot drop in high water elevation for Basin 13a and 14. The only basins adversely affected by this change was Basin 24 and Lake 04,which were only 5/100s of a foot (less than one inch) higher than existing conditions. There was a marked improvement in the Lake Hydrographs as seen in the comparison of the hydrographs in EXHIBITS 8,9,& 10. All of the lakes that outfall into Lake 5 drain faster and to a lower water elevation with this improvement. 3. Proposed Improvement #2B is an extension of the swale improvements from Lakes 16 and 4 all the way to the double outfall culverts at Lake 5 as shown on EXHIBIT 5. The existing swale sections can be seen in EXHIBIT 13 labeled Link 90, 91, and 92 and the proposed swale section can be seen in EXHIBIT 14. These existing swales are deeper and regular in shape than the swales in Improvement #2A, and improving these swales does not offer much improvement with minimal improved conveyance into Lake 5. 4. Proposed Improvement#3 is the addition of 30"culvert at two places along the outfall into Lake 5 as shown on EXHIBIT 6. Two sets of existing 19" x 30" elliptical pipe convey water from the upstream basins into Lake 5. The concerns with the existing culverts is that they are too shallow and too small to convey the water efficiently during peak events. Lowering the existing pipes is an option,but would be costly. Adding an additional 30" pipe at a lower invert, 4.0 feet NGVD, improves the drainage. When this pipe is added in conjunction with Improvements#1 and#2A,there are some improvements in the immediate area but only minor changes in water elevation throughout the system. The basins in the north do not benefit. 5. Proposed Improvement #5 consists of regrading the existing swale that links Basin 13 to Lake 15 as shown in EXHIBIT 7. The existing swale is practically non-existent as shown in EXHBIT 13—Link 35. The depth of the existing swale is less than one foot,making it impractical for conveyance. Improving this to a 3-foot deep swale with 4:1 side slopes and a 3-foot bottom width has a very minimal effect on the water elevations. Opening the pipe plug (Improvement #1) equalizes the water elevations in this area,so these swale improvements don't add any measurable value.This improvement was run in conjunction with Improvements previously mentioned. EXHIBIT 12 shows the improvement to the Lake Hydrographs when this improvement is run with Improvements#1 and#2A. 4 E. RECOMMENDATION Proposed improvements to the system were run in combinations, and shown in EXHIBIT 15 in order from greatest effectiveness to least effectiveness. The maximum high water elevations are compared in EXHIBIT 15 comparing the combinations to each other and to the existing conditions. Any elevations that are higher in the proposed conditions than the existing conditions are highlighted. An opinion of cost is provided for each proposed improvement and included as EXHIBITS 16—20. The cost and overall improvement of each possibility should be considered. While each iteration incrementally improves the system overall,some are costly and provide little benefit. Based on the results of the XP-SWMM modelling and the cost analysis,the following is recommended: 1. Improvement#1. The culvert from Lake 14 to Basin 14 (as shown in EXHIBIT 3) should be opened to efficiently drain the water during the wet season. If desired,a control structure could be installed to keep the lake water elevation higher during the dry season,similar to the gate operable structure in Lake 15. 2. Improvement#2A. The swales between Lakes 16 and 4 and the cart path(as shown in EXHIBIT 4)should be regraded to the profile shown in EXHIBIT 14. This improvement should be considered the second most effective improvement. 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V I /'—' 2. •••• t i i 1 ..r., • x i 1 1 iss 1 At s... — EXHIBIT 15 Comparison of Peak Storm Water Elevation Maximum Water Elevation Ft Existing Proposed Proposed Proposed Proposed Proposed Proposed#1 Name Conditions Proposed 711 #1#24 #1#2A#3 #1#2A#28 Al#2A #1#2A#3 #2A 428#3 #3 #5 #5 Basin0l 10.42 10.33 1., i 10.20 10.20 10.20 10.19 10.21 Basin02 12.79 _ 12.65 12AJ _ 12.37 12.36 12.38 12.35 12.37 Basin03a 10.40 [ 10.30 10.13 10.12 10.10 10.11 10.10 10.16 Basin03b 10.39 10.30 10.13 10.12 10.10 10.11 10.10 10.16 Basin04a 12.28 12.13 11.88 11.85 11.84 11.86 11.84 11.85 Basin04b 10.45 10.29 10.01 10.04 10.03 9.99 9.99 10.09 BasinOS 10.40 10.25 10.01 10.05 10.03 9.99 9.99 10.09 Basin06a 10.39 10.28 10.09 10.10 10.08 10.05 10.05 10.14 Basin06b 10.39 - 10.27 10.07 ' 10.10 10.08 10.03 10.04 10.13 Basin07 10.46 , 10.40 10.35 10.34 10.33 10.34 10.33 10.34 Basin08a 10.32 10.18 9.99 10.03 10.02 9.97 9.98 10.07 Basin08b 10.32 10.18 9.99 10.03 10.02 9.97 9.98 10.07 Basin08c 10.32 10.18 9.99 10.03 10.02 9.97 9.98 10.07 BasinOBd 10.32 10.18 9.99 10.03 10.02 9.97 9.98 10.07 Basin08e 10.31 10.18 9.99 10.03 10.02 9.97 9.98 10.07 Basin08f 10.31 10.18 9.99 10.03 10.02 9.97 9.98 10.07 Basin09a 10.37 10.21 10.00 10.04 10.02 9.98 9.98 10.08 Basin09b 10.37 10.21 10.00 10.04 10.02 9.98 9.98 10.08 Basinl0 10.43 10.26 10.00_ _ 10.04 10.03 9.98 9.99 10.08 Basinlia 10.39 . 10.23 10.00 10.04 10.03 9.98 9.99 10.08 Basinllb 10.38 10.22 10.00 10.04 10.03 9.98 9.99 10.08 . Basinllc 10.38 10.21 10.00 10.04 10.02 9.98 9.98 10.08 Basinlld 10.37 10.21 10.00 10.04 10.02 9.98 9.98 10.08 Basinl2 _ 10.39 10.23 10.00 10.04 10.03 9.98 9.98 10.08 Basinl3a 9.64 10.05 9.94 9.93 9.99 9.96 9.95 9.96 Basinl3b 10.21 10.09 9.95 9.94 9.99 9.96 9.95 9.98 Basin14 9.64 10.03 9.92 9.92 9.97 9.95 9.94 9.95 'Basin15 11.28 11.35 11.35 11.35 1 L 12 11.14 11.10 11.35 Basinl5b 10.41 10.53 10.35 10.30 10.25 10.21 10.22 10.32 Basin 16 12.37 1.2.41 12.34 12.32 12.29 12.30 12.28 12.32 Basinl6Bd 10.48 10.42 10.37 10.36 10.35 10.36 10.35 10.36 Basin17 10.43 10.26 10.00 10.04 10.03 9.98 9.99 10.08 Basinl8a 9.73 9.87 9.78 9.78 9.82 9.78 9.78 9.80 Basinl8b 9.60 9.68 9.59 9.60 9.62 9.59 9.59 9.63 Basin19 10.37 4 10.21 10.00 10.04 10.02 9.98 9.98 10.08 Basin20 10.21 10.10 9.96 9.95 9.98 9.96 9.94 9.99 Basin2l 11.09 10.95 10.24 10.04 10.07 10.16 9.98 10.14 Basin22 10.36 10.25 10.00 10.04 10.02 9.97 9.98 10.08 Basin22-23 8.59 8.56 8.45 8.46 8.47 8.45 8.45 8.48 Basin23 9.33 9.31 9.20 9.23 9.22 9.19 9.19 9.26 Basin23Sw 9.15 9.15 9.05 9.07 9.07 9.04 9.04 9.10 Basin24 10.41 10.36 10.46 10.27 10.24 10.39 10.18 10.33 CB21 9.17 9.15 9.07 9.08 9.10 9.07 9.07 9.10 CB22-23 8.57 8.55 8.44 8.45 8.46 8.43 8.44 8.46 C5i89 9.99 9.95 9.84 9.86 9.86 9.82 9.82 9.90 Hoie3 10.25 10.16 9.99 10.03 10.02 9.97 9.98 10.07 Hole4 10.27 10.19 10.05 10.06 10.03 9.99 9.99 10.11 Holes 10.27 10.19 10.05 10.06 10.04 9.99 9.99 10.11 t59 10.24 10.15 9.99 10.03 10.02 9.97 9.98 10.07 187 10.41 1031 10.17 10.16 10.14 10.14 10.13 10.19 Lake04 10.41 10.36 10.46 10.27 10.24 10.39 10.18 10.33 LakeOS 10.25 10.16 9.99 10.03 10.02 9.97 9.98 10.07 Lakel4 10.38 10.22 10.00 10.04 10.03 9.98 9.99 10.08 Lakelsa 10.37 10.21 10.00 10.04 10.02 9.98 9.98 10.08 Lakel5b 10.30 10.17 9.99 10.03 10.02 9.97 9.98 10.07 Lakel8 10.37 10.21 10.00 10.04 10.02 9.98 9.98 10.08 MH-2 10.43 10.32 10.24 10.23 10.23 10.23 10.22 1.0.23 Outfall 5.30 5.30 5.30 5.30 5.30 530 5.30 5.30 OutfalIl 5.50 5.50 5.50 5.50 5.50 5.50 5.50 5.50 P102A 10.27 10.19 10.05 10.06 10.03 9.99 9.99 10.10 P102B 10.25 10.16 9.99 10.03 10.02 9.97 9.98 10.07 P140A 10.28 10.1.9 10.05 10.06 10.04 9.99 9.99 10.11 QIFtBivd 10.52 10.52 10.52 10.52 10.52 10.52 10.52 10.52 WdshrLnN 10.41 10.35 10.32 10.31 10.31 10.31 10.31 10.31 W estSide 10.44 10.39 10.49 10.32 10.29 10.42 10.24 10.38 EXHIBIT 16 Agnoli,Barber&Brundage, Inc Engineer's Preliminary Opinion of Probable Cost August 29,2014 FOREST LAKES MSTU EAST SIDE PROPOSED IMPROVEMENT#1 Remove Plug From Culvert Item No. Description Unit Quantity Unit Cost Total Cost 1 REMVOAL OF CULVERT PLUG(See NOTE Below) LS 1 $2,900.00 $2,900.00 SUBTOTAL $2,900.00 CONSTRUCTION TOTAL $2,900.00 NOTE:Price quote provided to MSTU by contractor Shenandoah Item No. Description Unit Quantity Unit Cost Total Cost 1 ENGINEERING,SURVEYING,&PERMITTING-N/A LS 0 $0.00 $0.00 ENGINEERING TOTAL $0.00 PROJECT TOTAL $2,900.00 EXH I BIT 17 Agnoli,Barber&Brundage,Inc Engineer's Preliminary Opinion of Probable Cost August 29,2014 FOREST LAKES MSTU EAST SIDE PROPOSED IMPROVEMENT#2A Regrade Swale at Lake 16 and Lake 4 Item No. Description Unit Quantity Unit Cost Total Cost 1 MOBILIZATION LS 1 $2,000.00 $2,000.00 2 SWALE REGRADING(EXCAVATION,EMBANKMENT,SOD,&GRADING) SY 2,500 _ $8.00 $20,000.00 SUBTOTAL $22,000.00 25%CONTINGENCY $5,500.00 CONSTRUCTION TOTAL $27,500.00 Item No. Description Unit Quantity Unit Cost Total Cost 1 ENGINEERING,SURVEYING,&PERMITTING(See NOTE Below) _ LS 1 _ $3,500.00 $3,500.00 ENGINEERING TOTAL $3,500.00 NOTE:Permitting not anticipated to restore swale to original 1976 design section PROJECT TOTALI $31,000.00 EXHIBIT 18 Agnoli,Barber&Brundage, Inc Engineer's Preliminary Opinion of Probable Cost August 29,2014 FOREST LAKES MSTU EAST SIDE PROPOSED IMPROVEMENT#2B Regrade Swale From Cart Path to Lake 5 Item No. Description Unit Quantity Unit Cost Total Cost 1 MOBILIZATION LS 1 $3,000.00 $3,000.00 2 SWALE REGRADING(EXCAVATION,EMBANKMENT,SOD,&GRADING) SY 3,750 $8.00 $30,000.00 SUBTOTAL $33,000.00 25%CONTINGENCY $8,250.00 CONSTRUCTION TOTAL $41,250.00 Item No. Description Unit Quantity Unit Cost Total Cost 1 ENGINEERING,SURVEYING,&PERMITTING(See NOTE Below) LS _ 1 $5,000.00 $5,000.00 ENGINEERING TOTAL $5,000.00 NOTE:Permitting not anticipated to restore swale to original 1976 design section PROJECT TOTALI $46,250.001 EXHIBIT 19 Agnoli,Barber&Brundage, Inc Engineer's Preliminary Opinion of Probable Cost August 29,2014 FOREST LAKES MSTU EAST SIDE PROPOSED IMPROVEMENT#3 Add 30"Culvert Beneath Cart Path and at Outfall to Lake 5 Item No. Description Unit Quantity Unit Cost Total Cost 1 MOBILIZATION LS 1 $4,200.00 $4,200.00 2 CART PATH BRIDGE RESTORATION SY 60 $40.00 $2,400.00 3 30"CONCRETE HEADWALL LS 4 $3,350.00 $13,400.00 4 30"REINFORCED CONCRETE PIPE LF 216 $90.00 $19,440.00 5 RESTORATION OF LANDSCAPE LS 1 $3,000.00 $3,000.00 SUBTOTAL $42,440.00 25%CONTINGENCY $10,610.00 CONSTRUCTION TOTAL $53,050.00 Item No. Description Unit Quantity Unit Cost Total Cost • 1 ENGINEERING,SURVEYING,&PERMITTING LS 1 $6,500.00 $6,500.00 ENGINEERING TOTAL $6,500.00 IPROJECT TOTALI $59,550.00 EXHIBIT 20 Agnoli,Barber&Brundage, Inc Engineer's Preliminary Opinion of Probable Cost August 29,2014 FOREST LAKES MSTU EAST SIDE PROPOSED IMPROVEMENT#5 Regrade Swale From Basin 13 to Lake 15 Item No. Description Unit Quantity Unit Cost Total Cost 1 MOBILIZATION LS 1 $5,000.00 $5,000.00 2 SWALE REGRADING(EXCAVATION,EMBANKMENT,SOD,&GRADING) SY 5,000 $10.00 $50,000.00 SUBTOTAL $55,000.00 25%CONTINGENCY $13,750.00 CONSTRUCTION TOTAL $68,750.00 Item No. Description Unit Quantity Unit Cost Total Cost 1 ENGINEERING,SURVEYING,&PERMITTING(See NOTE Below) LS 1 $10,000.00 $10,000.00 ENGINEERING TOTAL $10,000.00 NOTE:Permitting not anticipated to restore swale to original 1976 design section PROJECT TOTAL' $78,750.00 FOREST ROADWAY and DRAINAGE M.S.T.U. ADVISORY COMMITTEE LAKES REPORT FOR: SEPTEMBER 2,2014 MEETING MAINTENANCE REPORT To: Forest Lakes MSTU Committee cc: Aaron Gross, Ground Zero George Fogg, RLA, Chairman, Forest Lakes MSTU Advisory Committee From: Darryl Richard, RLA Project Manager Date: August 28, 2014 RE: Forest Lakes—Monthly Maintenance Report The following is a brief maintenance status report for the Forest Lakes landscape maintenance areas: • In general site/areas look good. • Bees were observed in an irrigation valve box in ROW on Forest Lakes Blvd. between Camellia Ln. and Boxwood Ln. • 2 trees damaged by Quail Run Golf Course Contractor are to be replaced. • A few trees were noted to have limbs within the 10 ft. clearance for sidewalks. Staff will follow-up with contractor to have the trimming done to 10 ft. clearance. • Mowing on Woodshire looks good. • Tree Trimming was noted along Woodshire Lane being done by Emerald Greens Condo Association. • Herbicide spraying was noted as having been done by Naples Bath &Tennis to control vines along fence on Woodshire Lane.Additional spraying is necessary. Please email or call me if you have any questions. Darryl Richard, RLA, MSTU Project Manager ISHENANDO . . CONSTRUCTION 1888 N .22' Street • Pompano Beach,FL 33069 (239)337-9385 Fax: (239)337-9386 PROPOSAL#35519 DATE: August 11,2014 SUBMITTED TO: Collier County Department of Alternative Transportation Modes STREET: 3299 Tamiami Trail E.Suite 700 CITY,STATE&ZIP: Naples,Florida 34112 PHONE: (239)252-5775 FAX: (239)252-6627 JOB LOCATION: Forest Lakes MSTU ATTENTION: Darryl Richard We propose to furnish a crew and all necessary equipment to Forest Lakes MSTU as per contract 105507 at the above mentioned job location. This work will be performed at our following hourly and/or unit prices: #171 Dive Crew (at$210.00 Per Hour) 10 hour(s) $2,100.00 #168 Laborer (at$35.00 Per Hour) 10 hour(s) $350.00 #180 Air Compressor W/hammer (at$15.00 Per Hour) 10 hour(s) $150.00 #196 Mobilization (at$300.00 Each) 1 Each $300.00 Estimated Total: $2,900.00 NOTE: We are providing a removing temporary masonry plug. We do not and will not take responsibility for any property damage, equipment damage,flooding or bodily injury as a result of removal of the plug. This proposal may be withdrawn if not accepted within 30 days. Payment terms net 30 days. All material is guaranteed to be as specified. All work to be completed in a workmanlike manner according to standard practices. Price above is only an estimate of foreseen conditions. Unforeseen conditions can affect the amount of time to complete the work,therefore increasing or decreasing estimate. All agreements are contingent upon strikes,accidents or delays beyond our control. Unless noted above engineering,permits,testing and bonds are not included in the pricing. Owner is to carry fire,tornado and other necessary insurance. Our workers are fully covered by Workman's Compensation Insurance. Parties to this proposal/contract expressly waive all tort claims against each other and limit their remedies to breach of contract. SIGNATURE: `Ji3aidgette Sala RB: SHENANDOAH GENERAL CONSTRUCTION CO. TITLE DATE Bridgette Sabio Estimator 08/11/2014 ACCEPTANCE OF PROPOSAL/SIGN&RETURN The above prices,specification and conditions are satisfactory and are hereby accepted. You are authorized to do the work as specified. SIGNATURE: COMPANY NAME: DATE: REPRESENTATIVE: TITLE: , 1, Hannula Landscaping, Inc. Proposal 28131 Quails Nest Lane H A N N U LA Bonita Springs, FL 34135-6932 Date Proposal# tAN AP1 G r :RR»ATION NC' Phone: (239) 992-2210 Fax: (239) 498-6818 8/26/14 14-3205 Prop, sed To Clerk's Finance Department 3299 Tamiami Trail E.STE 700 Naples,FL 34112-5749 Project 14-3170M Forest La... Des riptioq. Cost Total l orest Lakes MSTU. P■xiemoss Cul de Sac Christmas Palm[Adonidia Merrilli]Replacement Maintenance Landscape Supervisor 6 75.00 450.00 Maintenance Landscape Laborer 12 55.00 660.00 Labor Subtotal 1,110.00 Contractor to Provide: (1)Christmas Palm, 12-14'OA/Double Truck (4)Premium Specialty Red Mulch,2 CF Bag Total $1,110.00 PROPOSAL ACCEPTANCE Person signing this agreement must be authorized to enter such agreements and have read and agree to all specifications,terms,amounts,payments and procedures contained herein. Customer Signature Title Date Estimate GATEKEEPERS Date Estimate No. BUE,Inc., an Employee Owned Company 08/27/2014 E 2409 1301 Railhead Blvd, Unit# 5;Naples,FL 34110 (239) 254-0077* (239) 254-0097 Fax Address DARRYL RICHARD COLLIER COUNTY DEPT.OF ALTERNATI 2885 HORSHOE DR. S NAPLES,FL 34104 Item Description Amount •**Fence Repair** 0.00 FENCE •Repair to fence where removed for access to FPL pole.Supervisor and general labor,tie 300.00 wraps to refasten and straighten at Woodshire Lane., 1 @$300.00 Gatekeepers is an employee owned Company and we really appreciated the opportunity to earn your Total $300.00 business. If you have any issues,please do not hesitate to call any one of us....we all care. Accepted By Accepted Date FN05-00448/LCC20110003564 visit us at www.g8keepers.com EC13004967