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DRAINAGE CRITERIA MANUAL (V. 3) CONSTRUCTION BEST MANAGEMENT PRACTICES <br />o DD <br />TEMPORARY DIVERSION DIKE <br />Definition <br />A temporary ridge of compacted soil located at the top, midslope, or base of a disturbed <br />area. <br />Purposes <br />• <br />1. To divert storm runoff from higher drainage areas away from unprotected slopes to a <br />permanent channel or temporary channel diversion. <br />2. To divert sediment4aden runoff from the midslope of a disturbed area to a temporary <br />slope drain. <br />3. To divert sediment-laden runoff from the base of a disturbed area to a sediment trapping <br />facilii)?. <br />From: Virginia Soil and Water Conservation Commission, 1985 <br />Figure C-9-Temporary Diversion Dike <br />C-36 9-1-99 <br />Urban Drainage and Flood Control District