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SEDCAD 4 for Windows <br />rnn mr hr 100A _7nin p-i. I Crh-.h <br />11 <br />Riser <br />Riser Height <br />Barrel <br />Barrel Barrel Slope <br />Number of <br />Spillway Elev <br />'s <br />Diameter (ft) <br />Diameter Length (ft) ( %) <br />Manning n () Holes per <br />(in) <br />(in) <br />Elev <br />18.00 6.00 <br />18.00 10.00 1.00 <br />0.0140 5,684.00 2 <br />Pond Results: <br />Peak Elevation: <br />5,683.86 ft <br />Kgraph Detention Time: <br />15.92 hrs <br />Pond Model: <br />CSTRS <br />Dewater Time: <br />2.89 days <br />Trap Efficiency: <br />93.65% <br />Dewatering time is calculated from peak stage to lowest spillway <br />Elevation - Capacity- Discharge Table <br />Elevation <br />Area <br />(ac) <br />Capacity <br />(ac -ft) <br />Discharge <br />(cfs) <br />Dewater <br />Time <br />(hm) <br />5,680.08 <br />1.857 <br />0.000 <br />0.000 <br />Top of Sed. Storage <br />5,680.25 <br />1.877 <br />0.320 <br />0.000 <br />5,680.50 <br />1.906 <br />0.793 <br />0.000 <br />5,680.75 <br />1.936 <br />1.273 <br />0.000 <br />Low hole SPW #2 <br />5,681.00 <br />1.966 <br />1.761 <br />0.556 <br />10.62* <br />5,681.25 <br />1.996 <br />2.256 <br />0.786 <br />7.62* <br />5,681.50 <br />2.026 <br />2.759 <br />0.962 <br />6.32* <br />5,681.75 <br />2.056 <br />3.269 <br />1.111 <br />5.55* <br />5,682.00 <br />2.086 <br />3.786 <br />1.243 <br />5.04* <br />5,682.25 <br />2.116 <br />4.312 <br />1.361 <br />4.67* <br />5,682.50 <br />2.146 <br />4.845 <br />1.470 <br />4.39* <br />5,682.75 <br />2.177 <br />5.385 <br />1.572 <br />4.30 <br />5,683.00 <br />2.208 <br />5.933 <br />1.667 <br />4.10 <br />5,683.25 <br />2.238 <br />6.489 <br />1.757 <br />3.90 <br />5,683.50 <br />2.269 <br />7.052 <br />1.843 <br />3.80 <br />5,683.75 <br />2.300 <br />7.623 <br />1.925 <br />3.65 <br />5,683.86 <br />2.314 <br />7.885 <br />1.961 <br />5.40 <br />Peak Stage <br />5,684.00 <br />2.331 <br />8.202 <br />2.004 <br />Spillway #2 <br />5,684.25 <br />2.362 <br />8.789 <br />2.079 <br />5,684.50 <br />2.393 <br />9.383 <br />5.165 <br />5,684.75 <br />2.424 <br />9.985 <br />7.369 <br />5,685.00 <br />2.456 <br />10.595 <br />8.509 <br />5,685.25 <br />2.487 <br />11.213 <br />9.513 <br />5,685.50 <br />2.519 <br />11.839 <br />10.421 <br />5,685.75 <br />2.551 <br />12.473 <br />11.256 <br />Filename: Pond NHN -002 10YR EVENT PRINCIPAL SPILLWAY OPEN 23JAN15.sc4 Printed 01 -23 -2015 <br />