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1%W . Coastal Construction Code ; and Open Burning/Air Curtain Incinerator. The Building Code requires construction east of 82nd Avenue to mee a windload requirement of 140 mph , while in areas west of 82nd Avenue , the standard to be met is mph ) . The regtand manatees . Itso regulates seawalls , dockst tures , regulatory Ordinance b l has and has protection for sea turtles dune protection and maintenance . The Indian River County Code Chapter 930 , addresses Stormwater Management and Flood Protection and was last updated in February of 2003 to clarify that ali mechanical equipment (as well as base floors) must be 6 inches above the base flood elevation in 100-year floodplains . The East Indian River County Master Stormwater Management Plan addresses issues of flooding , erosion , and water quality in the County . The County is proposing an ordinance modification to address construction site stormwater runoff control through the Indian River County National Pollutant Discharge Elimination System ( NPDES ) Phase II Permit process . 3 . 5 .3 County Mitigation Projects/Initiatives There are a number of projects and initiatives the County has imple ented to mitigate potential damage resulting from various hazards . See Table 3 . 2 for a summary of projects and programs . Most are related to flooding and hurricanes . Through the Indian River County Environmental Lands Program , the County has purchased a number of ,% „ important parcels in the CHHA. Most were purchased because they exhibited environmentally significant habitat; however , the County also gains by reducing the intensity and density of development in a high risk area , the CHHA. Also , the County , like other local governments in Florida , has revis d its building code since Hurricane Andrew struck south Florida in 1992 . The code now requires a finish floor elevation at 6 inches above minimum 100-year flood level . The County' s building code also requires corrosion resistant hurricane clips , water resistant adhesives for shingles , and trusses manufactured in accordance with local wind models . The County has taken a variety of actions to mitigate the impact of coastal erosion along its shoreline . In 1996 , the County installed an offshore breakwater , the Prefabricated Erosion Prevention reef, offshore of a 3 , 000 -foot segment of shoreline in downtown Vero Beach that had experienced significant damage in the Thanksgiving storm of 1984 . Since installation , the adjacent beach has stabilized . In response to Hurricanes Floyd and Irene 1999 , the County , with funding from FEMA, placed 65 , 000 cubic yards of sand at eight locations in the County to rebuild areas of dune that had been damaged by the storms . In 2003 , the County completed its first large-scale beach restorationroject, placing 535 , 505 cubic yards of sand along 2 . 5 miles of beach in northern Indian Rive County , in the only area of the barrier island subject to overwash from a Category 3 hurricane . Private property owners have also taken measures to prevent damage from coastal erosion . There are currently 37 seawalls and other coastal armoring structures in Indian River County , protecting a total of 6 ,461 feet of developed property . r• 3- 15