Definitions 17.4 Definitions Generally*
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distances, recorded flood storage areas required by this UDO and drainage basin study maps. FLOODPLAIN MANAGEMENT (FLOODPLAIN DEVELOPMENT) The operation of an overall program of corrective and preventive measures for reducing flood damage and preserving and enhancing, where possible, natural resources in the floodplain, including, but not limited to, emergency preparedness plans, flood control works, floodplain management regulations, and open space plans. FLOODPLAIN MANAGEMENT REGULATIONS (FLOODPLAIN DEVELOPMENT) Any ordinances, building codes, health regulations, special purpose ordinances, and other applications of police power which control development in flood-prone areas. This term describes federal, state or local regulations, in any combination thereof, which provide standards for preventing and reducing flood loss and damage. FLOODPROOFING (FLOODPLAIN DEVELOPMENT) Any combination of structural and nonstructural additions, changes, or adjustments to structures, which reduce or eliminate flood damage to real estate or improved real property, water and sanitation facilities, structures, and their contents. Any combination of structural and nonstructural features, additions, changes or adjustments to properties and structures in accordance with or comparable to guidelines set forth in “Floodproofing Regulations” June 1972 edition, published by the Office of the Chief Engineers U.S. Army, Washington, D.C. for an essentially dry floodproof class (W2). FLOODWAY (FLOODPLAIN DEVELOPMENT) The channel of a river or other watercourse and the adjacent land areas that must be reserved in order to discharge the base flood without cumulatively increasing the water surface elevation more than one foot. FLOOD ZONE (FLOODPLAIN DEVELOPMENT) A geographical area shown on a Flood Hazard Boundary Map or Flood Insurance Rate Map that reflects the severity or type of flooding in the area. FREEBOARD (FLOODPLAIN DEVELOPMENT) The height added to the Base Flood Elevation (BFE) or the Future Conditions Flood Elevation to account for the many unknown factors that
could contribute to flood heights greater that the height calculated for a selected size flood and floodway conditions, such as wave action, bridge openings, and the hydrological effect of urbanization on the watershed. The Base Flood Elevation plus the freeboard establishes the “Regulatory Flood Protection Elevation”. FREEWAY A freeway is a divided street or road which serves through traffic with full control of access and with grade separations at intersections. FRONTAGE BUILDOUT Percentage of lot frontage occupied by the fronts of buildings. FUTURE CONDITIONS FLOOD (FLOODPLAIN DEVELOPMENT) The flood having a 1% chance of being equaled or exceeded in any given year based on future conditions hydrology. FUTURE CONDITIONS FLOOD ELEVATION (FLOODPLAIN DEVELOPMENT) A determination of the water surface elevations of the 1% annual chance flood based on future conditions hydrology as published in the Flood Insurance Study. This elevation, when combined with the freeboard, establishes the “Regulatory Flood Protection Elevation” in Future Conditions Flood Hazard Areas. FUTURE CONDITIONS FLOOD HAZARD AREA (FLOODPLAIN DEVELOPMENT) The land area that would be inundated by the 1% annual chance flood based on future conditions hydrology. FUTURE CONDITIONS HYDROLOGY (FLOODPLAIN DEVELOPMENT) The flood discharges associated with projected land-use conditions ba sed on Wake Forest’s Land Use Management Plan and without consideration of projected future construction of flood detention structures or projected future hydraulic modifications within a stream or other waterway such as bridge and culvert construction, fill, and excavation. Future conditions flood discharges are published in the Flood Insurance Study. FUNCTIONALLY DEPENDENT FACILITY (FLOODPLAIN DEVELOPMENT) A facility which cannot be used for its intended purpose unless it is located in close proximity to water, such as a docking or port facility necessary for the loading and unloading of cargo or passengers,
Town of Wake Forest Unified Development Ordinance – July 19, 2022
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