MANASOTA & PEACE RIVER BBDs Meeting Notebook 10-21-09.docx

W623
Holmes Beach Stormwater Retrofit
Project Type SWIM
AOR(s)
Flood Protection, Water Quality, Natural Systems
Basin(s) Manasota
Cooperator(s)
Holmes Beach
Project Manager PRESTON, MATT
Task Manager(s)
Status Ongoing
Description
This project is in response to a cooperative funding request from the City of Holmes Beach. The project will impact two
drainage basins within the City of Holmes Beach totaling approximately 107 acres. Both basins have a total of 16
outfall locations that discharge into the finger canals within the City, which discharge into Sarasota Bay. The objective
of this project is to reduce pollutants being received by Sarasota Bay by improving the water quality discharge to the
bay and reduce flooding within the basins. The project includes the construction of a new retention area at the
southwest intersection of 62nd Street and Flotilla Drive. Additional improvements will include reconstruction of the city
owned land to accommodate shallow grassed swales and installation of new baffle box structures at each outfall
location. The swales provide treatment of stormwater through percolation and evaporation. Treated stormwater will
discharge into the bay through the new baffle structures which provide additional treatment through sedimentation,
filtration and skimming.
Benefits
This project will improve the water quality and flood protection by removing pollutants and increasing storage and
conveyance capacity. The stormwater filtration devices being proposed will provide suspended solids removal from
stormwater runoff that previously discharged directly into the canal/bay system. The project is anticipated to reduce
TSS by 80%.
Costs
The total project budget is $515,000, of which the City and the District are funding half ($257,500). The District's share
is split between the Manasota Basin Board ($128,750) and State SWIM ($128,750). District funds shown in the table
include staff salaries.
Additional Information
The State of Florida has designated Sarasota Bay as an OFW. In 1997, a Sarasota Bay Surface Water Improvement
and Management (SWIM) Plan was created to outline a series of research and/or restoration projects that will allow
for the preservation and continued restoration of the health of Sarasota Bay. The goals of the SWIM plan include
improvement of water transparency in Sarasota Bay to decrease the quantity and increase the quality of stormwater
runoff to Sarasota Bay, to restore shoreline habitats in Sarasota Bay and to continue monitoring programs in Sarasota
Bay. This project will help to accomplish those objectives and increase the overall health, welfare and safety of the
residents living within these basins.
District Budgeted - Ad Valorem Based
Revenue
021 Manasota Basin 0 0 43,499 175,270 218,769
District Budgeted - Outside Revenue
Ecosystem Trust Fund - SWIM
Rebudget
Prior
FY 2009 FY2010
Funding Funding Funding
0 0 41,115
0
41,115
WMLTF (SWIM) - Prior Year Funds 0 0 2,383
0 2,383
Project Funds Not Budgeted by the
District
City of Holmes Beach 0 0 82,230 175,270 257,500
021 - Manasota Basin 109
Total:
Future
Funding
Total
Funding
$519,767