O-2021-3849 Amending Chapter 94 "Floods" of the Code of Ordinances by adding new definitions and incorporating updated regulations related to flood hazards

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homes are to be affixed (including the installation of utilities, the construction of streets, and either final site grading or the pouring of concrete pads). Five -hundred (500) year floodplain elevation means the elevation of surface water resulting from a flood that has a 0.2-percent chance of equaling or exceeding that level in any given year. The 500- year floodplain elevation is shown on the flood insurance rate map for zones B and X (shaded). Flood or flooding means a general and temporary condition of partial or complete inundation of normally dry land areas from: (1) The overflow of inland or tidal waters. (2) The unusual and rapid accumulation or runoff of surface waters from any source. Flood elevation study means an examination, evaluation and determination of flood hazards and, if appropriate, corresponding water surface elevations, or an examination, evaluation and determination of mudslide (i.e., mudflow) and/or flood -related erosion hazards. Flood insurance rate map (FIRM) means an official map of a community, on which the Federal Emergency Management Agency has delineated both the special flood hazard areas and the risk premium zones applicable to the community. Flood insurance study (FIS). See "flood elevation study." Floodplain or flood -prone area means any land area susceptible to being inundated by water from any source (see definition of "flooding"). Floodplain management means the operation of an overall program of corrective and preventive measures for reducing flood damage, including but not limited to emergency preparedness plans, flood control works and floodplain management regulations. Floodplain management regulations means zoning ordinances, subdivision regulations, building codes, health regulations, special purpose ordinances (such as a floodplain ordinance, grading ordinance and erosion control ordinance) and other applications of police power. The term describes such state or local regulations, in any combination thereof, which provide standards for the purpose of flood damage prevention and reduction. Flood protection system means those physical structural works for which funds have been authorized, appropriated, and expended and which have been constructed specifically to modify flooding in order to reduce the extent of the area within a community subject to a "special flood hazard" and the extent of the depths of associated flooding. Such a system typically includes hurricane tidal barriers, dams, reservoirs, levees or dikes. These specialized flood modifying works are those constructed in conformance with sound engineering standards. Floodproofing means 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 sanitary facilities, structures and their contents. Floodway. See "regulatory floodway."