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to be affixed (including, at a minimum, the installation of utilities, the construction of streets, and <br /> either final site grading or the pouring of concrete pads) is completed before the effective date of <br /> the floodplain management regulations adopted by a community. <br /> Five-hundred(500) year floodplain elevation means the elevation of surface water resulting from a <br /> flood that has a 0.2-percent chance of equaling or exceeding that level in any given year. The 500- <br /> year floodplain elevation is shown on the flood insurance rate map for zones B and X (shaded). <br /> Expansion to an existing manufactured home park or subdivision means the preparation of <br /> additional sites by the construction of facilities for servicing the lots on which the manufactured <br /> homes are to be affixed (including the installation of utilities, the construction of streets, and either <br /> final site grading or the pouring of concrete pads). <br /> Flood or flooding means a general and temporary condition of partial or complete inundation of <br /> normally dry land areas from: <br /> (1) The overflow of inland or tidal waters. <br /> (2) The unusual and rapid accumulation or runoff of surface waters from any source. <br /> Flood elevation study means an examination, evaluation and determination of flood hazards and, if <br /> appropriate, corresponding water surface elevations, or an examination, evaluation and <br /> determination of mudslide (i.e., mudflow) and/or flood-related erosion hazards. <br /> Flood insurance rate map (FIRM) means an official map of a community, on which the Federal <br /> Emergency Management Agency has delineated both the special flood hazard areas and the risk <br /> premium zones applicable to the community. <br /> Flood insurance study (FIS). See "flood elevation study." <br /> Floodplain or flood-prone area means any land area susceptible to being inundated by water from <br /> any source (see definition of"flooding"). <br /> Floodplain management means the operation of an overall program of corrective and preventive <br /> measures for reducing flood damage, including but not limited to emergency preparedness plans, <br /> flood control works and floodplain management regulations. <br /> Floodplain management regulations means zoning ordinances, subdivision regulations, building <br /> codes, health regulations, special purpose ordinances (such as a floodplain ordinance, grading <br /> ordinance and erosion control ordinance) and other applications of police power. The term <br /> describes such state or local regulations, in any combination thereof, which provide standards for <br /> the purpose of flood damage prevention and reduction. <br /> Flood protection system means those physical structural works for which funds have been <br /> authorized, appropriated, and expended and which have been constructed specifically to modify <br /> flooding in order to reduce the extent of the area within a community subject to a "special flood <br /> hazard" and the extent of the depths of associated flooding. Such a system typically includes <br /> hurricane tidal barriers, dams, reservoirs, levees or dikes. These specialized flood modifying works <br /> are those constructed in conformance with sound engineering standards. <br /> 3 <br />