Tampa Bay Region - Southwest Florida Water Management District
Tampa Bay Region - Southwest Florida Water Management District
Tampa Bay Region - Southwest Florida Water Management District
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SOUTHWEST FLORIDA WATER MANAGEMENT DISTRICT<br />
FY2014 COOPERATIVE FUNDING INITIATIVE APPLICATION FORM<br />
Project Name<br />
Implementation of BMPs within the Sawgrass Lake <strong>Water</strong>shed<br />
Project Number W288<br />
Cooperator<br />
Pinellas Park<br />
Department<br />
Contact Person Dennis Shaw<br />
Address Po Box 1100<br />
City Sate Zip Pinellas Park, FL 337801100<br />
Phone #<br />
727-541-0704 ext2312<br />
Email<br />
dshaw@pinellas-park.com<br />
Project Type:<br />
<strong>Water</strong> Supply X <strong>Water</strong> Quality Flood Protection Natural Systems<br />
Strategic Initiatives:<br />
X <strong>Water</strong> Quality Maintenance and Improvement <strong>Water</strong> Quality Monitoring<br />
Alternative <strong>Water</strong> Supply Conservation<br />
Reclaimed <strong>Water</strong> <strong>Region</strong>al <strong>Water</strong> Supply Planning<br />
Emergency Flood Response Floodplain <strong>Management</strong><br />
Minimum Flows and Level Establishment and Monitoring Minimum Flows and Levels Recovery<br />
Natural Systems Conservation and Restoration Natural Systems Identification and Monitoring<br />
Indicate All Counties to Benefit From Project:<br />
Charlotte Citrus Desoto Hardee Hernando Highlands Hillsborough Lake<br />
Levy Manatee Marion Pasco X Pinellas Sarasota Sumter Polk<br />
Project Description:<br />
NOTE: This project was originally submitted for funding for the 2013 CFI cycle. It was rated a “medium” priority by SWFWMD staff<br />
and approved for funding by the Governing Board. After submission of the original application, the City secured some funding for<br />
the project through FDOT. Due to the addition of the FDOT funding and the inherent changes in project schedule due to the FDOT<br />
LAP process, the project schedule and requested funding amounts have changed. The revised schedule pushes the construction<br />
phase into FY 2014, thus the City is required to withdraw its original application and resubmit for funding for the FY 2014 CFI<br />
program. Otherwise, the application and project remain unchanged.<br />
Pinellas Park is a land-locked municipality with no direct outfall to <strong>Tampa</strong> <strong>Bay</strong> (TB), Cross <strong>Bay</strong>ou or other coastal water body.<br />
Therefore, stormwater collected within the City is routed to the eventual outfall through pipes, ditches and channels. Land use<br />
within the City can vary drastically in a short distance resulting in industrial, commercial, residential and agricultural properties<br />
within a single basin. With each land use contributing its own array of stormwater pollutants, the end outfall (typ. a ditch/channel)<br />
can contain waters not meeting water quality standards. Future improvements within the Garnett/North Disston Subdivision entail<br />
the construction of stormwater structures and piping. With the project area lacking collection structures, ponding in the travel lanes<br />
results in unsafe driving conditions. The City also proposed to culvert certain sections of open ditch along 46th Street which can’t<br />
maintain vegetation (steep slopes) as the City often responds to "wash outs".<br />
The project area lies within the Sawgrass Lake (SL) watershed, which serves as a natural treatment facility enhancing water quality<br />
prior to draining into TB (an impaired water body). SL is known to have high concentrations of heavy metals along with a large<br />
population of non-native vegetation. Construction of the City's proposed improvements will result in a reduction in heavy metal (and<br />
other pollutant) concentrations while minimizing the transport of non-native vegetation seeds. Further, the culverting of certain ditch<br />
sections will cease the erosion of the banks and reduce the sediment transported to SL and TB.<br />
To improve water quality within the SL and inherently TB, multiple BMPs are proposed. The proposed collection system consists of<br />
four outfalls which discharge stormwater in the ditch paralleling 46th St. Hydrodynamic Separators (HS) will be placed on each of<br />
these outfalls. An HS will also be placed on existing stormwater piping which conveys flows to a lake internal to the neighborhood.<br />
This device will reduce sediment transport into the lake to improve water quality and habitat value. Prior to entering Channel 2A, a<br />
sediment sump will be constructed in conjunction with a ditch block. While allowing sediment to settle is its primary utility, it also will<br />
allow for water to percolate within the sump (and upstream ditch portions) until elevations exceed the top of the ditch block.<br />
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