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East C ifford QAPP <br /> Section A <br /> Revision No . <br /> Date : 3/ 16/05 <br /> Page of 18 <br /> A& Problem Definition/Background <br /> A5 . 1 Project Location : <br /> The 46 . 8-acre East Gifford Watershed lies in eastern central Indian River <br /> County , north of 41 st Street , east of the one- mile ridge ( approximately 26th <br /> and 28th Avenue ) south of 43rd Street , and west of US Highway 1 , including <br /> connecting tributaries . (see Figure A . 2 Site Location Map ) The longitude of <br /> the project site is 800E 24 ' 30 " and the latitude is 270N 40 ' 0 " . The site is <br /> located within Section 26 , Township 32S , Range 39E . <br /> The project area currently drains to the Indian River Lagoon , a statE priority <br /> water body designated under the Surface Water Improvement & <br /> Management Program ( SWIM ) , a designated Estuary of National <br /> Significance , and part of the state ' s Unified Watershed Assessmen Program . <br /> This estuary is also a NPS priority water body and a wintering habit at of the <br /> West Indian Manatee . Currently , the East Gifford Watershed has not <br /> implemented BMPs or stormwater treatment alternatives to reduce he run -off <br /> entering into Indian River Lagoon . <br /> A5 . 2 Project Description : <br /> The East Gifford Area Stormwater Improvement Project will incorporate best <br /> management practices to provide water quality treatment , reduce peak flows <br /> and flooding , and reduce the amount of pollutant loadings to the Indian River <br /> Lagoon . The construction of a 4 +/- acre detention lake on the west side of <br /> the Florida East Coast Railroad track and a conveyance swale on the west <br /> side of U . S . 1 will provide flood protection , erosion control , and promote <br /> health benefits by reducing the amount of ponded , stagnant stormwater <br /> runoff in the area . <br /> Historically , the frequent flooding of Gifford east of the one- mile ridge , can be <br /> reasonably attributed to the construction of both the Florida East Coast <br /> Railroad and U . S . Highway 1 . These transportation corridors are constructed <br /> on raised grades that block the historical flow of runoff from west to east . <br /> The Project will reduce flooding in a low- income area where some cf the <br /> homes have finished floor elevations below flood levels . Also , the e rea ' s low- <br /> lying local roads are often flooded . The resulting pockets of stagna it water <br /> create a public health concern . <br /> F :\Public Works\KeithM\Stormwater Projects\Gifford East\Water Quality Monitoring Program\Quality Assurance Project Plan\DEP <br /> QAPP East Gifford Revision 3- 16-2005. doc <br />