2012 FDOT Mitigation Plan - Southwest Florida Water Management ...

REGIONAL MITIGATION PLAN
BACKGROUND INFORMATION
Mitigation Project Name: Little Pine Island Mitigation Bank Project Number: SW 52
County: Lee
Location: Sec. 14,15,16,21,22,23,24,25,26,27,34,35,36 T44S, R22E
IMPACT INFORMATION
(1) FM: 1937941, SR 776-CR 771 to Willow Bend Rd.* ERP #: 4316676.00 COE#: 199601986
(2) FM: 1984711, Trabue Harborwalk Bike Path ERP #: 4417560.01 COE#: 199705303
(3) FM: 4046971, I-75 Widen Bridge over Peace River** ERP #: 43021917.00 COE#: 200102749
(4) FM: 4130423, I-75 – Tucker’s Grade to N. Jones Loop Rd. ERP #: 43035560.000 COE#: 200101386
Drainage Basin(s): Myakka River (1937941), Peace River (1984711, 4046971), Charlotte Harbor (4130423)
Water Body(s): Peace River, Alligator Creek SWIM water body? Y
* Note - This roadway project had an additional 8.92 acres of wetland impacts mitigated through restoration
activities at Cattle Dock Point, Phase II (SW 31).
** Note - The bridge project had an additional 0.8 acres of mangrove impacts mitigated through on-site restoration
activities, as noted under Peace River Bridge Restoration (SW 69).
MITIGATION ENVIRONMENTAL INFORMATION
Mitigation Type: Restoration and enhancement
Mitigation Area: 6.09 Credits
SWIM project? N Aquatic Plant Control project? N Exotic Plant Control Project? Y
Mitigation Bank? Y If yes, give DEP/WMD mit bank permit #: 362434779 COE # 199400037 (IP-GS)
Drainage Basin: Charlotte Harbor Water Body: Charlotte Harbor SWIM water body? Y
Project Description
A. Overall project goal: Little Pine Island Mitigation Bank (LPIMB) includes habitat enhancement and restoration within
state-owned property (FDEP’s Charlotte Harbor Buffer Preserve) that had extensive coverage of exotic vegetation,
particularly Melaleuca, Brazilian pepper and Australian pine. The goal of LPIMB is to eradicate exotic vegetation from
approximately 1,600-acres of disturbed coastal marsh, salt flats, mangroves, and pine flatwoods. This included
constructing temporary haul roads restoring wetland grades and associated hydrology by backfilling approximately
seven miles of mosquito ditches.
B. Brief description of pre-construction condition: Mangrove species existed within undisturbed portions, particularly
along the perimeter of the 4,700-acre island (aerial photos). However due to historic construction of mosquito ditches,
the altered hydrolology resulted in the substantial invasion and dominance of exotic species such as Australian pine,
Brazilian pepper and predominantly Melaleuca that formed very dense populations over half of the 1,600-acre
restoration area.
C. Brief description of construction activities and current conditions: Commencing in 1997, the LPIMB
construction activities primarily included exotics eradication and restoring appropriate wetland grades by filling the
mosquito ditches with the adjacent spoil piles (Figure B), thus resulting in restoration of appropriate wetland hydrology.
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