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40 <br /> ANNANDALE <br /> at Creek Wood <br /> PRELIMINARY FLOWPATH DATA <br /> 30-Aug-12 <br /> POINT ELEVATION <br /> START END START END LENGTH SLOPE FLOW TYPE CONDITION <br /> If ft/ft <br /> Entire Drainage Basin <br /> A B 583 579 100 0.0400 Sheet Wooded <br /> B C 579 542 983 0.0376 Unpaved <br /> C D _ 542 518 1660 0.0145 Pipe Assume 24" <br /> D E 518 496 2038 0.0108 Stream 6'wide, 3' deep <br /> _ E F 496 494 219 0.0091 Stream 9'wide,4' deep <br /> Total Length of Flowpath 5000 <br /> Site Drainage Basin <br /> A B 543 541 100 0.0200 Sheet Wooded <br /> B E 541 496 1101 0.0409 Unpaved <br /> E F 496 494 219 0.0091 Stream 9'wide,4' deep <br /> Total Length of Flowpath 1420 <br /> Note: <br /> 1.) Drainage paths remain consistent in pre-and post-development <br /> 2.) Flow paths based on GIS/LIDAR information and aerial photographs <br /> 3.) Channel dimensions assumed for Pipe flow <br /> 4.) Stream dimensions based on average cross-section <br />