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County of Knox Stormwater Management Ordinance

County Of Knox   
Urban | Suburban | Rural
Knox County has a number of ordinances not commonly found in other communities. Development is regulated within the 500-year floodplain, and before a property owner hands over title to his or her land or structure, a State-certified engineer must certify the as-built elevations of all structures in the floodplain comply with the standards of the ordinance. Building requirements mandate 1 foot BFE above the 500-year floodplain and construction fill between one-half the linear distance between the floodway line and the 100-year floodplain line unless it causes no net rise.