Agenda 10/27/2015 Item #16A11 10/27/2015 16.A.11 .
EXECUTIVE SUMMARY
Reommendation to approve a Memorandum of Agreement between Collier County and the Big
Cypress National Preserve detailing the terms of a combined effort to improve hydrologic
conditions on the wetlands and watersheds of a portion of the Big Cypress National
Preserve, in the vicinity of Birdon and Turner River Roads.
OBJECTIVE: To assist staff of the National Park Service Big Cypress National Preserve
(BCNP) with Phase 2 of the Ochopee Sheet Flow Restoration Plan.
CONSIDERATIONS: The Ochopee Sheet Flow Restoration Plan is comprised of three phases,
which encompasses an area generally bounded by U.S. 41 on the south, Turner River Road on
the east, Wagon Wheel Road on the north, and Birdon Road on the west. This area is located
approximately four miles east of State Road 29 within the boundary of the Big Cypress National
Preserve. The goal of the Restoration Plan is "restoration of freshwater sheet flow to the water
starved wetlands which in turn feed estuaries in downstream Everglades National Park." The
Restoration Plan generally consists of installing culverts under Turner River, Wagon Wheel, and
Birdon Roads; removal of farm and tram roads and restoration to wetland grade; and, infilling
canals with earthen plugs. The National Park Service's Big Cypress National Preserve has been
working on an effort to restore natural surface water flows to the area since the 1980s.
Construction of Turner River, Wagon Wheel and Birdon Roads, and adjacent canals many years
ago altered the sheet flow pattern within the restoration area, blocking freshwater from
recharging wetlands and reaching estuaries downstream. Many of the existing culverts under
these roads are undersized and restrict flow. Installation of additional culverts will increase
surface water flow to the Turner River and surrounding wetlands, and decrease the potential of
peak canal stages overtopping these county maintained roads. During the rainy season, water
from the canals washes out sections of the lime rock roadways creating water quality issues and
costly maintenance repairs for the County's Road and Bridge Division.
The first phase of the restoration project was approved by the Board of County Commissioners
(Board) on June 24, 2014 (Item 16A 16) and the County has since completed its in-kind portion
of that project, which consisted solely of the installation of culverts under Turner River Road.
The second phase, which is the subject of this Executive Summary, would require the County to
install 5 sets of culverts on Turner River Road and 3 sets of culverts on Birdon Road.
Big Cypress National Preserve received funding in the amount of up to $285,000 for the
restoration effort for Phases 1 and 2. Combined with Big Cypress National Preserve's in-kind
contribution, these funds have and will cover all materials and other costs, except for the
County's in-kind contribution to furnish all labor and equipment needed to install a total of 11
sets of culverts at an approximate cost of$15,000 per set of culverts (3 sets in Phase 1 at a cost
of $45,000, and 8 sets in Phase 2 at a cost of$120,000). The main details of this restoration
project partnership are listed in the Memorandum of Agreement. Big Cypress National Preserve
staff is responsible for completing the design and permitting work. Collier County will be the
co-permiee for the necessary environmental resource permits.
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FISCAL IMPACT: The value of in-kind culvert installation services provided by the County's
Road and Bridge Division for phase 2 of the project is estimated to be $120,000.
Once installed, the new culverts will have a life cycle exceeding 50 years. Recurring annual
operation and maintenance costs are estimated to be approximately $100 per culvert set each
year. The new culverts will be maintained by the Road and Bridge Division, Fund 101.
LEGAL CONSIDERATIONS: This item is approved as to form and legality, and requires
majority vote for Board approval.—SRT
GROWTH MANAGEMENT IMPACT: Restoration of surface water flows on the wetlands
and watersheds within the BCNP is in accordance with the Goals, Objectives and Policies of the
Stormwater Management Sub-element of the Growth Management Plan. Further, these lands are
designated Conservation on the Future Land Use Map and are within the Big Cypress Area of
Critical State Concern. The implementation of the Restoration Plan helps fulfill the purpose of
the Conservation Designation, which is to conserve conservation lands and their natural
functions.
RECOMMENDATION: To approve the attached Memorandum of Agreement between the
National Park Service's Big Cypress National Preserve and Collier County; and, direct the
Chairman to execute the agreement.
Prepared by: Michele Mosca, AICP, Principal Planner, Capital Project Planning, Impact Fees
and Program Management Division, Growth Management Department
Attachments:
1) Memorandum of Agreement
2) Ochopee Sheet Flow Restoration Plan and location map
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COLLIER COUNTY
Board of County Commissioners
Item Number: 16.16.A.16.A.11.
Item Summary: Recommendation to approve a Memorandum of Agreement between
Collier County and the Big Cypress National Preserve detailing the terms of a combined effort to
improve hydrologic conditions on the wetlands and watersheds of a portion of the Big Cypress
National Preserve, in the vicinity of Birdon and Turner River Roads.
Meeting Date: 10/27/2015
Prepared By
Name: MoscaMichele
Title: Planner, Principal, Growth Management Department
9/28/2015 12:21:53 PM
Submitted by
Title: Planner, Principal, Growth Management Department
Name: MoscaMichele
9/28/2015 12:21:54 PM
Approved By
Name: PuigJudy
Title: Operations Analyst, Growth Management Department
Date: 9/29/2015 1:30:28 PM
Name: PuigJudy
Title: Operations Analyst, Growth Management Department
Date: 9/29/2015 1:30:55 PM
Name: PattersonAmy
Title: Division Director-IF, CPP&PM, Growth Management Department
Date: 10/7/2015 1:05:51 PM
Name: KurtzGerald
Title: Project Manager, Principal, Capital Project Planning, Impact Fees and Program Management
Date: 10/12/2015 6:00:02 PM
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10/27/2015 16.A.11.
Name: TeachScott
Title: Deputy County Attorney, County Attorney
Date: 10/13/2015 9:06:05 AM
Name: MarcellaJeanne
Title: Executive Secretary, Transportation Administration
Date: 10/13/2015 4:49:01 PM
Name: KlatzkowJeff
Title: County Attorney,
Date: 10/14/2015 9:32:20 AM
Name: IsacksonMark
Title: Division Director-Corp Fin&Mgmt Svc, Office of Management&Budget
Date: 10/14/2015 10:21:59 AM
Name: CasalanguidaNick
Title: Deputy County Manager, County Managers Office
Date: 10/15/2015 9:52:21 AM
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MEMORANDUM OF AGREEMENT
THIS MEMORANDUM OF AGREEMENT(hereinafter referred to as the"Agreement")
is made and entered into this of , 2015, by and between COLLIER
COUNTY, FLORIDA, a political subdivision of the State of Florida (hereinafter referred to as
"COUNTY") and the BIG CYPRESS NATIONAL PRESERVE, a federal agency within the
National Park Service and under the United States Department of the Interior (hereinafter
referred to as"BCNP")whose address is 33100 Tamiami Trail East,Ochopee,Florida 34141.
AUTHORITY
This agreement is entered into under the authority of 16 U.S.C. § I b(5).
RECITALS:
WHEREAS, the BCNP received funding in the amount of$225,000.00 from the Aquatic
Habitat Restoration and Enhancement Program administered by the Florida Fish and Wildlife
Conservation Commission to help correct hydrologic conditions on the wetlands and watersheds
of a portion of the BCNP, in the vicinity of Birdon and Turner River Roads, located in eastern
Collier County,Florida;and
WHEREAS, despite prior re-diversion efforts in the 1990s to restore water flow to the
wetlands and watersheds of a portion of the BCNP,the water delivery system remains deficient
as roadbeds continue to block and prevent water from recharging wetlands with sufficient sheet
flow on the downstream sides of the roads;and
WHEREAS, the BCNP and the COUNTY have a shared interest in the restoration of
water flow to the wetlands and watersheds, including but not limited to: (1) the project's
location within and alongside the right-of-way of county-owned roads, (2) the mutual goal of
rehydrating wetland and stream systems within conservation lands negatively affected by road
and canal infrastructure, (3) the desire to prevent damaging high water overtopping roadways,
and(4)the benefits of dual agency project cost savings;and
WHEREAS, the BCNP and the COUNTY have the experience, resources and expertise
to combine efforts and jointly submit permit applications and to apportion construction and
maintenance responsibilities amongst themselves as project partners on the Turner River Sheet
Flow Project and the Birdon Tram Removal and Culverts Project(hereinafter, the "Projects") as
more fully set forth below;and
WHEREAS, the BCNP and COUNTY have determined and mutually agree that it is
economically advantageous and in the best interest of the public to consummate this Agreement
to help correct the hydrologic conditions in the wetlands and watersheds of a portion of the
BCNP.
v
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WITNESSETH:
NOW, THEREFORE, in consideration of the above promises and other good and
valuable consideration exchanged amongst the parties, and in consideration of the covenants
contained herein,the parties agree as follows:
A. All of the above recitals are true and correct and are hereby expressly incorporated
herein by reference as if set forth fully below.
B. This Agreement shall be executed upon approval by the Board of County
Commissioners and by an authorized representative of the BCNP. This Agreement shall be
recorded by the County in the Official Records of Collier County, Florida,within fourteen (14)
days after the Agreement is fully executed. The County shall pay all costs of recording this
Agreement.
C. This Agreement is a commitment by the Parties to perform as follows:
1. BCNP and the COUNTY shall be co-applicants on the joint permit application
for the Project. BCNP shall be responsible for 100 percent of the permitting,
including providing additional information as required during permit review and
any mitigation obligations that may arise during review.
2. BCNP shall be fully responsible for the canal infilling aspect of the Projects,
which shall include, without limitation, the installation and maintenance of
eleven 50 to 150 feet long canal plugs within the Turner River Road and Birdon
Road Canals; and, the removal of the one-mile Iong elevated Birdon tram and
restoration to wetland grade. BCNP will also be responsible for supplying all
pipe,concrete,rip-rap and other materials necessary to complete the work.
3. County shall be responsible for:
a. All equipment and labor necessary for installation of dual 24-inch, high
density polyethylene (HDPE) culverts, at five locations on Turner River
Road and three locations on Birdon Road, estimated to require about three
months of work time.
b. Future maintenance of the installed culverts.
4. A copy of the Overview Map of the Turner River Sheet Flow Project and the
Birdon Tram Removal and Culvert Project identifying the existing and proposed
culvert locations is attached hereto as Exhibit"A."
5. BCNP and COUNTY agree to assign their below designated contract
agent/representatives to coordinate going forward and to synchronize the
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management of their respective responsibilities on the pent-lifting and
construction of the Project:
BCNP: COUNTY:
J.D.Lee,Deputy Superintendent Gerald Kurtz,Principal Project Manager
National Park Service Growth Management Department
Big Cypress National Preserve 2800 N.Horseshoe Drive
33100 Tamiami Trail E. Naples,FL 34104
Ochopee,Florida 34141
D. No modification or change in this Agreement shall be valid or binding upon either
party unless in writing and executed by the party or parties intended to be bound by
it. The parties, however,may amend this agreement to provide further specificity, if
necessary, once the permitting process is concluded and the plans and details
regarding procurement and construction are more fully known.
E. It is further understood and agreed, by and between the parties herein that this
Agreement is subject to appropriation by their respective agencies.
F. This Agreement shall remain in full force and effect from the date first above written
and shall terminate upon the completion of services and responsibilities outlined
herein as mutually performed by BCNP and by COUNTY to the written satisfaction
each to the other.
G. This Agreement shall be governed by the laws,rules, and regulations of the State of
Florida and by such laws, rules and regulations of the United States as made
applicable to services funded by the United States government. Any suit or action
brought by either party to this Agreement against the other party relating to or
arising out of this Agreement must be brought in the appropriate federal or state
courts in Collier County, Florida, which courts have sole and exclusive jurisdiction
on all such matters.
STANDARD CLAUSES
A. Civil Rights
During the performance of this Agreement,the participants agree to abide by the terms of
U.S. Department of the Interior - Civil Rights Assurance Certification, non-
discrimination and will not discriminate against any person because of race, color,
religion, sex, or national origin. The participants will take affirmative action to ensure
that applicants are employed without regard to their race, color, sexual orientation,
national origin, disabilities,religion,age,or sex.
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B. Promotions
The County will not publicize, or otherwise circulate, promotional material (such as
advertisements, sales brochures, press releases, speeches, still and motion pictures,
articles, manuscripts or other publications) which states or implies Governmental,
Departmental, bureau, or Government employee endorsement of a product, service, or
position which the repository represents. No release of information relating to this
Agreement may state or imply that the Government approves of the County's work
product, or considers the Count's work product to be superior to other products or
services.
C. Public Information Release
1. Public Information
(a) The County will not publicize or otherwise circulate promotional material
(such as advertisements, sales brochures, press releases, speeches,
pictures, still and motion pictures, articles, manuscripts or other
publications) which states or implies Federal Government, Departmental,
bureau, or Federal Government employee endorsement of a product,
service, or position which the [Partner] represents. No release of
information relating to this Agreement may state or imply that the Federal
Government approves of the work product of the [Partner] or considers the
[Partner's] work product to be superior to other products or services.
(b) The County will ensure that all information submitted for publication or
other public releases of information regarding this project will carry the
following disclaimer:
"The views and conclusions contained in this document are those of the
authors and should not be interpreted as representing the opinions or
policies of the U.S. Government. Mention of trade names or commercial
products does not constitute their endorsement by the U.S. Government."
(c) The County will obtain prior NPS approval from the regional public
affairs office for any public information release that refers to the
Department of the Interior, any bureau or employee (by name or title), or
to this Agreement. The specific text, layout, photographs, etc., of the
proposed release must be submitted to the agreements technical
representative,who will forward such materials to the public affairs office,
along with the request for approval.
(d) The County agrees to include the above provisions of this Article in any
sub-award to any sub-recipient, except for a sub-award to a state
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government, a local government, or to a federally recognized Indian tribal
government.
2. Publications of Results of Studies
No party will unilaterally publish a joint publication without consulting the other
party. This restriction does not apply to popular publication of previously
published technical matter. Publications pursuant to this Agreement may be
produced independently or in collaboration with others; however, in all cases
proper credit will be given to the efforts of those parties contributing to the
publication. In the event no agreement is reached concerning the manner of
publication or interpretation of results, either party may publish data after due
notice and submission of the proposed manuscripts to the other. In such instances,
the party publishing the data will give due credit to the cooperation but assume
full responsibility for any statements on which there is a difference of opinion.
IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be executed by
their appropriate officials,as of the date first above written.
NATIONAL PARK SERVICE
BIG CYPRESS NATIONAL PRESERVE
By:
Print Name and Title
First Witness:
Print Name:
Second Witness:
Print Name:
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Attest: BOARD OF COUNTY COMMISSIONERS
DWIGHT E. BROCK, Clerk COLLIER COUNTY, FLORIDA
By: By:
,Deputy Clerk TIM NANCE,Chairman
Approved as to form and legality:
Scott R.Teach
Deputy County Attorney
Page 6 of 6 5312'?
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Ochopee Sheet Flow
Restoration Plan
�,+. A Detailed implementation
�'� 4-1 r, a� ,,∎;: i ,� Plan for Turner and Birdon
Phases 1 and 2
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Figure 1.Aerial views of the four project areas
2
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TABLE OF CONTENTS
I. Need for Plan, 2
II. Introduction, 5
A. Description of Drainage Problem, 5
B. Description of Restoration Solution, 7
III. Standard Restoration Treatment, 9
IV. Overview and Funding for Projects, 12
V. Detailed Budget Table, 14
VI. Detailed. Work Schedule Table, 15
VII. Conclusion, 16
Appendix 1 — Fill Availability Assessment
Appendix 2— Description of Costs
Appendix 3 — Detailed Maps of Turner and Birdon Road
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Need for Plan
This plan describes implementation and cost consideration for four hydrologic restoration projects
underway within the Ochopee subregion of Big Cypress National Preserve. The four projects are
separated from one another in terms of their budgetary origin only—Turner Phase 1 is funded by the
South Florida National Parks Trust(SFNPT),Birdon Phase 1 is a regulatory mandated mitigation project,
and Turner and Birdon Phase 2 are both funded by Florida Fish and Wildlife Conservation Commission.
Accordingly,the projects must be accounted for by their specific grant source. In all other ways the
projects are strongly and unavoidably interconnected. They are geographically proximate to one another
and hydrologically linked together within the same watershed. They share similar means and methods of
construction and have concurrent implementation schedules. Most of all they share the same overarching
goal:restoration of freshwater sheet flow to the water starved wetlands which in turn feed estuaries in
downstream Everglades National Park.
In this spirit, this detailed plan was devised to serve as a guide for individually and in unison moving
forward on all four projects,both internally within the Preserve and externally with our many
collaborators at Collier County,Florida Fish and Wildlife Conservation Commission,and South Florida
National Parks Trust.
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Figure 2. Multiple projects require a coordinated game plan.
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II. Introduction
A. Description of Drainage Problem
The Turner River,Birdon, and Wagon Wheel roads exert a negative hydrologic impact on the on the
wetlands and watersheds of Big Cypress National Preserve. During the time of their construction in the
1950s—prior to establishment of the Preserve—this intent was deliberate: the road network was dually
designed to both provide access and drain the surrounding wetlands. Elevated roadbeds were left largely
unculverted to block regional sheet flow. The road-adjacent canals—from which the sediment to form the
roadbeds was extracted—were dug deep(5-10 ft) and wide(40 ft),thus enabling them to channelize road-
blocked water and send it downstream. Drainage capacity of the canals was maximized by connecting
them with each other and at their downstream end to tide. Ecological impacts were large and far ranging
including a diminishment of the area's characteristic sheet flow regime,loss of overland. flow to
downstream estuaries,deepening of the dry season water table and increased vulnerabilty to wildfire
frequency and intensity.
Steps were taken to lessen the drainage capacity by the National Park Service in recent decades—
including installation of a series of earthen plugs and new roadbed culverts in 1989, inflling of the
southern end of Turner River Canal in 1996 and removal a number of sheet flow blocking drive ways and
fill pads that spur off the primary road arteries—but problems persist.
• Roadbeds continue to block inflows to downstream wetlands. Vast stretches of the limestone
road network remain without culverts, or significantly under culverted. This deficiency prevents
water from recharging wetlands with sheet-flow sufficient quantity on the downstream sides of
the roads.
E '..�'7' i+`.ta`N T a ,tt,a'r^16,{{r~ � . AT� `r' Y
swamp
J \
pp
+4 of �t Y
# �
.'*�
;Turner
Turner. Rover
RjVeC Road Turner River
Birdon Road Canal
Road
Canal
Figure 3.Diagram showing impacts of the Turner
River Road and Canal network on surrounding
wetlands,
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• Canals continue to pirate water away from wetlands. Past efforts to plug the canals have only
been marginally successful.The plugs are too infrequent(i.e.spaced only every mile apart) and
too narrow(i.e. 15 foot in-channel length)to appreciably hold back water in the low-lying swamp
terrain during summer wet season conditions.Absent upstream release valves(i.e. culverts),
water moving down the canal has no other alternative than rising up and over the canal bank,
easily bypassing the diminutive and infrequently-spaced plugs.
• Restoration infrastructure has become derelict.Past installation of plugs resulted in earthen
dams that rose 2-3 feet above wetland grade. Observation has since shown over the years that
there is no practical advantage to build plugs higher than wetland grade. Regardless of their
height,the plugs pose no barrier to summer season flows which—once the bank of the canal is
sufficiently overtopped—simply bypass the earthen barrier via the surrounding low-lying wetland
terrain. Over the years this has led to rutting and in some cases partial breaches of the plugs and
formation of erosional channels in the adjacent wetland,thereby reducing the effectiveness of the
plugs over time. The elevated section of canal has proven too narrow to easily maintain and a
conducive environment to exotic vegetation growth.
:,:,:::,7e
i ; k �, I r r za '=" 3 r''� 1 'r
A* :,k
ttr
�f " :1 t t `��
m x s' rTM t 1 f -•
, i' J` ` ltf t 4 ''aV 'w g
fi
•� ' 7tlx :1+ If
* 11
• 4 1
Fro ��t {11 Ali ‘,
• x r-x� 1 It ;�� ,
a .
Figure 4. Photograph showing an example of how the pre-existing narrow
canal plugs are readily breached during high water.
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B. Description of Restoration Solution
We believe the over-drainage issue described above can be rectified—simply, sustainably and at a low
cost—by retro-fitting existing"solo"plugs and"solo"culverts with co-located culvert/plug pairs as
shown in the diagram below.
rt r r X •
culvert' " �rw� iii�e
aI < road bed' ��c • �,;
n : ci r •4,C�.
15" iii'
Figure 4.Diagram of culvert/plug pair prototype
Advantages of the culvert/plug pair treatment include the following.
• It is consistent with past restoration actions.This solution does not reinvent the wheel. It
builds upon existing restoration actions and infrastructure and without affecting the transportation
opportunities provided by the road network.
• It re-establishes inflows to under-hydrated wetlands.Addition of culverts on the upstream side
of the plugs provides a much needed release valve for sending a portion of the plug pooled water
to wetlands on the other side of the road.
• It optimizes culvert and plug performance. Co-location of plugs and culverts optimizes each
components functionality: (1)Plugs have the desired effect of locally pooling up and directing
canal flow into the headwater end of the culvert,thus maximizing its discharge potential to
downstream wetlands on the other side of the road. (2)Culverts have the desired effect of
incrementally reducing flow down the canal,thus decreasing erosional damage to the plug and
surrounding wetland.
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• It is maintenance friendly. The solution is anticipated to be resilient over time. Previous
restoration efforts have not withstood the test in time partly as a result of the design flaw that we
anticipate to correct with the new plug/culvert treatment. Co-location of plugs and culverts will
help each perform better and last Ionger over time:plugs help ensure adequate flow rates and
volumes in culverts thus keeping them free of debris and sediment buildup over time. Culverts
help divert(and reduce) erosional-damaging canal flows from bypassing the plugs. Co-location
of plugs and culverts is also anticipated to reduce damaging over topping of the road surface
during peak water events.
• It mimics sheet flow regime. The sheet flow hydrologic regime is unique in that there is no one
best place or central channel for conveying the water: it is distributed shallowly and evenly across
the watershed instead. Our solution aims at restoring sheet flow by incrementally applying the
culvert/plug pair concept evenly across the landscape.
• It is adaptive management friendly. Our restoration design is modular. This not only provides
us with the ease of implementing our strategy across the watershed,but also gives us the
flexibility to recommend adaptive management recommendations. A combination of site-by-site
observations and system-wide monitoring will be used to gage the effectiveness of our approach
and if and where future improvements can be made. For example,monitoring may determine that
additional culverts beyond the standard treatment could be added behind certain plugs or
alternatively that certain culvert/plug pairs would benefit by lengthening the in-channel canal
infill segment. Monitoring may also reveal the opportunity for additional culvert/plug pairs as
well.
In conclusion,our adoption of a standard culvert/plug pair approach is seen as an environmentally-
appropriate,cost effective and sustainable for restoring the natural hydrology of the surrounding wetland
landscape.
C -
1L yY'P r rrJ r:
, r„,,,-,e;:',,.''')1;;;:-"C: ,,; , , ' ' ;,-;44,,,,:',,,' f , '• -,- ''''",.::_ ., ..#1,:4'‘C _
,, .,,„:,,,do , ,,.,„ . ....0„,„ „„. ..,..„, ,:..,01.... ,_„,,,, „ 4„ ...-I.,,, .:i
•4i`i _ . . i,. .... ` i ill u•t vt.
, upstream ° q 4 0 `rte',T'
- side of plug .j,[I1 ' , '..
Roam. ., e :s ': a �� 'i
- 2 i c ' lain ".-'■.'.� * �•g1.'*4'!• 4'12;.... .. downstream
'.' side of plug
Figure 5.Photographic rendering of culvert/plug pair prototype
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III. Standard Restoration Treatment
A. Standard Treatment Prototype
The standard restoration treatment consists of establishing culvert/plug pairs as identified in the diagram
below. The standard treatment will be applied in locations where pre-existing infrastructure is already in
place, i.e. solo plugs or solo culverts,or other criteria (i.e. severed natural flow ways) indicate their need.
Modifications may be made to this standard treatment in the future based on adaptive-management
principles, including direct observation and analysis of monitoring data.
40'-50'
t rft<1. f 7Fi h�q v
�; I 1;4 1° j��: (f�
fir - :'-' i E 4. 4!
.,n, 01-,),4,,,,v' cypress f,
f: y 11 ,'l low ground
c• >�,9, -'1 i s Jr
F 1 r ,y� .�n $
�,�,ru a ar..qq yli
i' .7.,..'04+,12a,„„ft,- _ artig"; vi-,414%'� _culverts r.-; n .}c r:'
.it i t r d a ®!+ fi ,":1,
> k oh plug x'15'
akkVa§s +4'. t trl k x ..
h F,,,,. e' t ■ l ,,f,',!',,'
A f
Fl? barrier
�` � new plug SR boulders p 9
rt �� It, A as needed wetland 50'-�50'
M grade
+ r. exit II,• h ';if'1'II
'1 1 2 tli. I{ I ,1
0,0,1;4'5
If
I ` ' �'. r1vs� rfri*Ag e
i Yt
tom '
t . I:'t1';' , I �a.M.1
F
pineland - elevated �` t
high ground road bed 1 Al
40'
Figure 6.Plan view of culvert/plug pair prototype
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B. Culvert Design and Cost Considerations
The standard culvert treatment will consist of a double-barreled pipe treatment at each site. This will
include two 40 foot lengths of 24-inch diameter high-density polyethylene(HDPE)pipes at each site,for
a total of 80 feet of pipe for each culvert location.
Costs Assumptions:
• HDPE pipe is estimated at$25 per foot,including shipping,to be paid by BICY.
• Collier County will be responsible for installing the culverts at each site per manufacturer
specification and the County's in-house expertise for installing and maintaining culverts under its
rural road network.
• BICY will be responsible for incidental materials and storage.
• A contractor will he used to construct the headwalls at each culvert site,to be paid by BICY.
Per Unit Standard Culvert Cost:
HDPE Pipe: $25/fl of HDPE pipe x 40 ft road width x 2 pipes per site= $2,000
Installation:In kind service provided by Collier County --
Headwalls cost to contractors $5,000
Contingency $500
Total $7,500
C. Plug Design and Cost Considerations
The standard plug treatment calls for lengthening pre-existing plugs from 15 feet to a minimum 50 foot
in-channel length. Plug length may be extended to 150 feet in-channel length where environmental
conditions(i.e.tying the plug into a pine island)and cost considerations (i.e. availability of fill)deem it
appropriate. Plugs will be installed at wetland grade from end to end. This will allow canal overflow to
be evenly distributed along the entire cross section and thus alleviate wetland-damaging high-velocity
bypass flows that plagued the original plug design. Elevated portions of the pre-existing plugs will be
scraped down to wetland grade. Riprap and geo-cloth will be applied to the upstream and downstream
ends of the plug to help stabilize the plug during overflow conditions.
Cost Assumptions:
• The canal is generally assumed to be 40 feet across and 5 feet deep. Each plug will require
around 30 dump trucks of dirt fill, or around 450 cubic yards. Areas where the canal is deeper
may require twice that volume. Transport of fill will cost between$50 and$150 per truck
depending on source(i.e. travel distance)plus the cost of loading the fill to the trucks which is
estimated at$1 per cubic yard. An estimated 3 truck loads of rip rap will be required at each
plug.
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• Each plug will require 3 dump trucks of rip rap for erosion control at upstream and downstream
ends. Cost of hauling in fill will vary depending an the source,i.e. stockpiled vs.reclaimed, and
travel distance required. A detailed analysis of fill availability is provided in Appendix 1.
• For the subset of plugs where trees or other natural barriers are not present to prevent vehicle
egress across the plugs,boulders may be require to block unwanted access. The need for this will
be determined on an individual basis for each plug.
• Work will be performed using a combination of fully outsourced services,use of rental
equipment by BICY staff,use on in-house equipment by BICY and Collier County staff.
• Plug installation will be performed by BICY personnel using rented bull dozer and requisite fuel.
Where possible plug installation will occur concurrently with hauling of the fill to each plug
location. In situations where plug installation does not occur concurrently,temporary dirt piles
will be temporarily established at each plug site. Dirt piles will be situated by the side of the road
in a way not to black traffic. Dirt piles will be encircled with silt screen to prevent unwanted
storm water.
5-'
.2
t.3<b.Y FgY
m 7 °` pp}.N, �,�° i ma „17-7,,,,-,, . i�c 6.t a++ti ,y. t FSS ' "°F' u4 .
Fy
411
Figure 7.Aerial view of Turn er River Road and Turner River's headwater pools. One of the
primary goals of the projects is to help return more water to the wetlands and watersheds that feed
the Turner River.
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IV.. "v vea*ivieTV of Projects
This detailed plan describes implementation and cost consideration for four projects within the Ochopee
Sheet Flow Restoration sub region. While each project is funded from separate sources—thus requiring
them to be described and accounted for individually—they are united by the same overarching restoration
goal,overlapping implementation schedules, and duplicated construction means and materials. The
detailed plan is essential for guiding BICY personnel and also laying out in clear terms plans and
commitments to its collaborators at Collier County and Florida Fish and Wildlife Conservation
Commission and South Florida National Parks Trust.
Funding for the projects include$60,000 from the South Florida National Parks Trust(SFNPT)to be
applied to Turner 1 and Birdon 1,up to$50,000 from the Florida Fish and Wildlife Conservation
Commission(FWC)through its Aquatic Habitat and Restoration Enhancement(AIHHE)program for
Turner Phases 1 and 2,up to$175,000 from FWC-AHRE for Birdon Phase 2 and in kind services
provided by Collier County and Big Cypress National Preserve.
Overview Map of Propsed Culvert/Plug Pairs
in Turner and Birdon Phases 1 and 2
t iiii, Location of culvert/plug pair
-. . — ® an — v °,1111111111., requiring new culvert installation
t --11... Location of culvert/plug pair with
0 1 , pre-existing culvert (i.e. no new
0 ' "` culvert installation required)
1l
1 — I! I 1
II a s 1
I elevated pfe proposed pre-existing
�, road to be existing extended 15-foot plug
Turner ` removed culvert plugs
,; Phase 2
■ 1°a t 40'.50'
C ? 1! cane): W/
I.
I. ale . I.
" Idl �. cypress t.,
t 1 - 1,low ground
ll l ' Birdon a ,fd -"a in
s v (' Phase 2 ' 1 ,°eW a 4,
r f.4 I: , ';s1:46 4 drt/ M"'`r r culverts 44'
, �C, tote e -it° ., ut altr �P
Birdon _ !- ' 1t pf. . wpe el f14115 w ` �15'
Phase 1 } X l s . ; cypress
v , 18w ground
rc i,a r I,Order1'Il I i. . .t I, ��' .,r elug
,, ., , wnd 50'•150'
l � .- de j 1 I. Tur er Phase 1; t i j i.-
r j dprp
i I ') pinelend elevated 'I,
I ;s, 1 high ground road bed i
Ib 3 I E-40'..
,
' `'�Irtion ,�,
Phase 3 v
Distance in mites T".■T
0 1 2 3 4
Figure 8.Map view of proposed culvert/plug pair prototype treatments (for Birdon Phases 1 and 2)
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Project descriptions are as follows:
Turner Phase 1 -Turner River Flow Enhancement Project
The project consists of establishing 5 standard culvert/plug treatments. All 5 sites are located between
Mile 0(HP Williams Wayside)and Mile 2 of Turner River Road. Two of the five culvert/plug sites
already contain culverts. Thus, in total this project will require installing 3 new culvert sites and 5 new
plug treatments. Collier County will install the culverts as an in kind service to the project. Two of the
plug treatment sites will occur in a deep(i.e. 10 foot deep) section of Turner River Canal.
Turner Phase 2–Turner River Sheet Flow Project
The project consists of establishing 5 standard culvert/plug treatments. The 5 sites are located
approximately a mile apart from one another at pre-existing"solo"plug locations between Mile 2 and
Mile 7 of Turner River Road.Negotiations are underway to partner with Collier County to install the
culverts as an in kind service to the project.
Birdon Phase 1—Copeland Prairie Mitigation Project
This project is a mitigation project that is required by state and federal regulatory agencies as
compensation for wetland impacts incurred during implementation of BICY's Recreational Off Road
Vehicle(ORV)Plan. The project consists of removing 5.75 Iinear miles of sheet-flow-blocking elevated
farm roads on the west side of Birdon Road between Miles 0 (Tamiami Trail) and Mile 1,strategically
infilling an estimated 1,000 linear feet of the Birdon and Diagonal Canals to wetland grade, and
rehabilitation and reverse engineering of a pre-existing culvert.
Birdon Phase 2–Birdon Tram Removal and Culverts Project
The project consists of removing a one-mile long elevated tram (i.e.restoring it to wetland grade)and
establishing six(6) culvert/plug pairs. All 6 culvert/plug sites are located between Miles 2 and 4 of
Birdon Road. Three of the six culvert/plug pair sites are already culverted. Thus in total this project will
require installing three(3)new culvert sites and six(6)new plug treatments. All six (6)plugs will be
built using a portion of the fill recovered from removing the tram. Negotiations are underway to partner
with Collier County to install the culverts as an in kind service to the project.
Wagon Wheel Phase 1–Not yet designed
This project is not yet designed or funded. It will likely involve adding more culvert capacity under
Upper Wagon Wheel Road. Under current conditions,the three-mile stretch of Upper Wagon Wheel
Road contains four single-pipe 3-ft diameter culverts and two 15-ft wide canal plugs. Additional culverts
and canal plugging will be required to adequately send water south.
Detailed mile-by-mile panel maps of Turner River and Birdon Road are provided as Appendix 3.
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V, , metalled Budget Table
Estimated project costs are itemized in the table below using the best available information. The table
provides a project by project guide as to how much money is budgeted for each task. Where possible,
tasks will be lumped for the projects,i.e.riprap creation and hauling,for logistical and cost-savings
reasons. Actual costs may vary from the values indicated in the table below due to a variety of
environmental,operational and other factors.
Table 1. Detailed Budget Table for Turner and Birdon Phases 1 and 2
SFNPT®Grant
Explanation FWC-AHRE Program M Supplies Cooperative Agreement(CA)
of Color Coding: FWC-Al IRE Program KZ Services CA: BICY performed
FWC-AHRE Program M Services CA: contractor performed
BICY In-Kind Service
Collier County _ In-Kind Service
Turner Birdon
Phases 1 and 2 Phase 1 Phase 2
1.COMPLIANCE COSTS
Permitting/Engineering $1,000 $1,000 $3,000 $1,000
Monitoring Equipment $10,000 $5,000 $5,000
2.MATERIAL COSTS
HOPE Pipe $12,000 $4,500
Boom/Geocloth , .r E,a l =s
3.PREP WORK
Vegetation Grubbing $5,000 $5,000 pw*ie'.
fliprap creation,loading and hauling
4.HAULING
Dirt for plugs $30,000 ±,±;+
Fuel,loading,maintenance ' i rr is r
5.TRAM/BERM REMOVAL
Removing fill from tram mmiza r�x .
Hauling tram fill to plug sites $10,000
6.INSTALLATION
Culvert Installation $30,000 $50,000 $30,000
Headwall installation ,a + � +
Plugs Installation $10,000 !} f'r` $$10,000 r- r ijj';�
SUBTOTALS BY SOURCE TOTALS
ta34 C;f ` C • s rte 171-72E7011 � ° b1
,FWCAHRgr;SupplieS : k $12,000 $4 500 $16,500
irraJs
Collier County-in Kind; ... $34,000 $50,000 $30,000. ` $110,000,
BICY-In Kind $46,000 $16,000, $28,000 $90,000,
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V.I. DETAILED WORK SCHEDULE
A detailed work schedule for Turner and Birdon Phases 1 and 2 is estimated in Table 2. The table was
created using best available information and attempting to logically sequence each project individually
and collectively all projects as a whole. The actual work schedule may vary from the estimated work
schedule due to environmental,operational and other factors.
. Projected Timeline for Implementing Turner and Birdon Phases
Done W ./D ) F M A M ) J A S O N D ) F Id A M ) ) A
2014 2015 2016
TURNER PHASE 1
L COMPUANCECOSIS
Permitting/Engineering
Monitoring Equipment
2.MATERIALCOST5
_HDPEPIpe
3.PREP WORE
Vegetation Grubbing
Rlpran creation,loading and Muting
e.HAWNG
ten lm plugs
reel,loading,maintenance
6.INSTAIIATION
Culvert Installation r
Headw3111nslailallon MEM
Mugs Installation
TURNER PHASE 2 •
1.COMPLIANCECOSTS
Permitting/engineering
Monitoring Equipment
2.MATERIAL COSTS
HOPE pipe
3.PREPVNEE
Vegetation Grubbing
Morowea1, loading and hauling -' a
a.HAULING
Dirt for Plugl MIMS
Fuel,loading,mammon.
6.INSTALIATIOII
Culvert Inttallallon
Headwall Installation
Plugs int1011alion
BIRDON PHASE 1
3.COMPIIANCECOSTS
Pe l millIng/Englneeilng
Monitoring Equipment
3.PREP WORE
Vegetation Grubbing El la
Riptap veallon,loading and hauling
5.T0.01M/eERM REMOVAL
'Re MOMS ntlirom Irani
Mauling Hamlin to plug sites
6.INSTALLATION
FWgiinslallillon
BIRDON PHASE 2
t.COMPLIANCECOSIS
Permining/Englneering
Monitoring Equipment
2.MATERIAL COSTS
HOPE Pipe
eoomTGeoclolh
3.PROP MOW
Vegetation Grubbing ?Ut:: ti
Moran creation,loading and hauling ....
I.HAULING
Dirt for plugs
iuel,Ioading.maintenance
3.1RAM/RERM REMOVAL
Removing fill fromlrem
Hauling tram fill loping Wei
I.INSTALATION
Culvert installation.
Headwall im311311on
Plops installation
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VII. CONCLUSION
Big Cypress National Preserve and its partners are in the process of embarking on four hydrologic
restoration projects in the Ochopee area. Despite their separate funding sources,the projects are strongly
and unavoidably tied together in every other way. They are geographically proximate to one another and
hydrologically linked together within the same watershed. They share similar means and methods of
construction and have concurrent implementation schedules. Most of all they share the same overarching
goal: restoration of freshwater sheet flow to the water starved wetlands which in turn feed estuaries in
downstream Everglades National Park.
This detailed plan provides a guide for individually and in unison confidently moving forward on all four
projects in the following ways:
• Improving project coordination among team members and divisions internally within the
preserve,
• Improving project coordination with collaborating agencies and entities external the preserve,
including Collier County, Florida Fish and Wildlife Conservation Commission, and South Florida
National Parks Trust,
• Providing an overview of how the projects are separate and inter-relate,
• Identifying cost efficiencies and areas of project overlap and
• Advance scheduling and sequencing all aspects of the projects.
td.� f t -- \„Ca Dias ! r 4,k r ., f pc 1 "4, G
! W _ u it r ! t 'S.1 i -Z� 'v..� lid '' i,{E1 t '2 ,Plv,� ?.
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Y H ''{ r Fr }Ft " '� �t Cft1
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A ��F ��n � W` 44 �t 1 �i 2 4i \ Pr f Y�e 1*M1 7\�'� ?'�f l� 4T�,�1 �" ��„t!C�” �'• i te�S { i 3`� h+ '�. r" ��'* i'Ill.x F 1 Mrs; .n g'', My� t f .. { Ynlitt ! } ", r i p
't i >> : . ,4�1, ,vt Y dtr .‘t,'..4.!%j ' vt , 1 t
,,, �2 if iltk Y� i I,t r ,! z i 1\;--;s'4A�� 1{I. 1f rh Pr "l. �1 F.,
P,' �{� {fir , ,s �p�oeffi1 *' , • ,, !
'}Oy��a Yt v 4 j�41�iy i �� �����r k�.f'� �9�� ; ' 1 V { it 1 �"�µ ‘‹ � t
1 �
I i {t e k. t 1,;" ,:z ' e Fr ' :.Q r ,, ig' { t,:..:',
it,
` , t ; s �? ,� Y x , rti J;1 t
,:i!;',3 ytik 1vP} it4 � i i {�drt., vL`.., 11 e f �fji .•_ , , - ' , , ,: ,tt i��---`WWW r r);,,,,,.:,,;_ .t�l + ,, 7,%9J' 1,,� ..� 11_.. 1 .bs , tr , tai yi,,-):F,y"�fi �41Vt-,,i, +� I .[a�.
( Ill a 4 ai. .�- � � a +� 0I 1,
. '-r t Yf r. it• 'J
Figure 9.The four projects share the same goal of replenishing water to the
under-hydrated Ochopee watershed of Big Cypress National Preserve.
16
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