Picayune Strand Hydrologic Restoration · Picayune Strand Hydrologic Restoration ... 800 cfs U.S 41...
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Picayune Strand Hydrologic Restoration formerly referred to as “Southern Golden Gate Estates” Picayune Strand Hydrologic Restoration formerly referred to as “Southern Golden Gate Estates” US Army Corps of Engineers Jacksonville District US Army Corps of Engineers Jacksonville District
Transcript of Picayune Strand Hydrologic Restoration · Picayune Strand Hydrologic Restoration ... 800 cfs U.S 41...
Picayune StrandHydrologic Restoration
formerly referred to as “Southern Golden Gate Estates”
Picayune StrandHydrologic Restoration
formerly referred to as “Southern Golden Gate Estates”
US Army Corps of EngineersJacksonville District
US Army Corps of EngineersJacksonville District
AuthorizationAuthorization
A component of the Comprehensive Everglades Restoration Plan which
requires congressional authorization for construction
A component of the Comprehensive Everglades Restoration Plan which
requires congressional authorization for construction
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Area MapArea Map
HydrologicRestorationStudy Area
HydrologicRestorationStudy Area
Project BackgroundProject Background
• 279 miles of roads and 48 miles of canals constructed by private developer in late ’60s
• Resulted in overdrainage of Southern Golden Gate Estates Area
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Project BackgroundProject Background
• Resulted in extreme flows to estuaries –affecting salinity and marine habitat
• Resulted in drier conditions inlandexpansion of invasive plant species such as Brazilian pepperloss of Cypress forestsas plant species changed, quality of animal habitat declined
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Major Flowway
Minor Flowway
I-75
US 41
Historic Flowways
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Alternatives Considered
• 20+ alternatives initially formulated • Three alternatives warranted further
evaluation
• “No Action” alternative also considered
Alternative #6Alternative #12Alternative #3D
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Decision Criteria1. Greater than 50%
restoration to historic conditions
2. No increased flooding to Northern Golden Gate Estates
3. No point source discharge to the estuary
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No spreaders or pump stations
46 canal plugs
227 miles of road removed
Flood protection levees
Primary – all weather roads
Secondary – dry season at grade
Service – trails
$738 million
Alternative 6Elements
MILES
I-75
0 2
N
Management Road
MI LLER
CA
NA
L
FAK
A U
NIO
NC
AN
AL
ME
RR
ITT CA
NA
L
PR
AIR
IE C
AN
AL
U.S 41
Stewart
Everglades
De Soto
Merritt Blvd
Patterson
Patterson
Berson
Miller B
lvd
62 Ave SE
Merritt Blvd
Fails to meet Decision Criteria #2
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2 spreaders
3 pump stations
64 canal plugs
3 Obermeyers in Miller Canal
227 miles of road removed
Flood protection levees
Primary – all weather roads
$351 million
MILES
I-75
0 2
N
Management Road
800 cfs
U.S 41
Stewart
Everglades
De Soto
Merritt Blvd
Patterson
Patterson
Berson
Miller B
lvd
62 Ave SE
Merritt Blvd
2000 cfs100 cfs
Fails to meet Decision Criteria #2 & #3
Alternative 12Elements
MI LLER
CA
NA
L
FAK
A U
NIO
NC
AN
AL
ME
RR
ITT CA
NA
L
PR
AIR
IE C
AN
AL
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MILES
3 Spreaders
3 Pump Stations
83 Canal Plugs
227 miles of Road Removed
Primary All Weather Roads
Flood Protection Levees
$349 million
I-75
0 2
N
Management Roads
800 cfs
2680 cfs1250 cfs
U.S 41
6L levee
Private Lands Levee
POI N levee
POI SE leveePOI SW levee
Meets All Decision Criteria
Alternative 3DRecommended PlanElements
MI LLER
CA
NA
L
FAK
A U
NIO
NC
AN
AL
ME
RR
ITT CA
NA
L
PR
AIR
IE C
AN
AL
Alternative 3D The Recommended Plan
Summary of Project Benefits
• freshwater flows to estuaries• upland/wetland habitat in watershed• pre-drainage watershed flow pattern to a sheet
flow condition• habitat for endangered/threatened species
(panther, woodstork, etc.)• increase groundwater levels
Project will restore and enhance the following:Project will restore and enhance the following:
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restores restores ecologicalecologicalconnectivityconnectivitybetweenbetweenpubliclypubliclyowned landsowned lands
The “missing piece”of the puzzle…
The “missing piece”of the puzzle…
Collier Seminole
State Park Everglades
National Park
Big Cypress National Preserve
Urban Development
Southern Golden Gate
Estates
RookeryBay
National EstuarineResearch Preserve
Fakahatchee Strand State Preserve
Picayune Strand State
Forrest
Florida Panther National Wildlife Refuge
10,000 Islands National Wildlife Refuge
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Estimated Costs
Construction Costs $124,946,000
Preconstruction, Engineering, Design $11,369,000
Construction Management $12,633,000
Monitoring During Construction $7,431,000
Land Acquisition $193,043,000
Total Project Cost $349,422,000
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Comparison: Restudy and PIR Plan
Construction Costs $15,500,000 $124,946,000
(October 1999) (October 2004)
Land Acquisition $0 (main report) $193,043,000
$134,400,400 (appendix)
Acres Same for both plans: the land between I-75, US 41, Fakahatchee Strand, and Belle Meade. Approximately 64,000 acres in the PIR.
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Comparison: Restudy and PIR Plan
Roads removed 130 miles 227 miles
Canal plugs 83 83
Miller Station 200 cfs 1,250 cfs
Faka Union Station 500 cfs 2,630 cfs
Merritt Station 160 cfs 800 cfs
Flood protection none 5 levees
Siting criteria conceptual Land use, topo, connectivity
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ScheduleSchedule• Draft PIR distributed for public/agency review –
May 14, 2004 thru July 13, 2004
• Transmit Final PIR to South Atlantic Division for Division Engineer’s Notice - October 2004
• Second Public Comment Period - November 2004
• Chief of Engineer’s Report - December 2004
• Congressional Authorization
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Thank you
Questions?
Thank you
Questions?
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