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<br />Berms Areas of native material or fill material <br />separating a river or stream from the <br />overbank gravel pits or one overbank <br />gravel pit from another overbank gravel <br />pit. <br />County A county totally or partially within <br />District's boundaries. <br />District Urban Drainage s Flood Control District <br />FHAD A Flood Hazard Area Delineation report <br />prepared by District. <br />Floodplain Land adjacent to a watercourse which is <br />subject to flooding as a result of the <br />occurrence of the 100-year or 1 percent <br />frequency flood of a watercourse. <br />Flood Profile A graph or a longitudinal profile showing <br />the relationship of the water surface <br />elevation of a flood event to location <br />along a stream or river. <br />Floodway That area of the floodplain required for <br />a reasonable passage or conveyance of the <br />100-year flood and which will convey the <br />flood flows with not more than 0.5 foot <br />rise in the water surface elevation based <br />on the assumption that there will be an <br />equal degree of encroachment onto the <br />overbank conveyances on both sides of the <br />floodplain. <br />UDSFCD GRAVEL GUIDELINES 12/17/87 <br />1-3 <br />