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SEDCAD 4 for Windows <br />(`nm.rinhf 10QR _7f11 f1 P�mcl� I Crh.u�h <br />E <br />Enhanced Perf. Riser <br />Riser <br />Diameter (in) Riser Height <br />Barrel <br />Diameter (in) Barrel Length Barrell Slope <br />Number of <br />Manning's n Spillway Elev Holes per <br />(ft) <br />(ft) ( /o) <br />(ft) Elev <br />18.00 3.90 <br />18.00 40.00 1.00 <br />0.0150 5,681.90 2 <br />Pond Results: <br />Peak Elevation: <br />5,679.93 ft <br />H'graph Detention Time: <br />9.41 hrs <br />Pond Model: <br />CSTRS <br />Dewater Time: <br />2.40 days <br />Trap Efficiency: <br />73.04 <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 />(hrs) <br />5,678.22 <br />1.366 <br />0.000 <br />0.000 <br />Top of Sed. Storage <br />5,678.25 <br />1.370 <br />0.045 <br />0.000 <br />Low hole SPW #2 <br />5,678.50 <br />1.397 <br />0.391 <br />0.142 <br />29.41* <br />5,678.75 <br />1.424 <br />0.744 <br />0.961 <br />9.95 <br />5,679.00 <br />1.452 <br />1.103 <br />1.359 <br />3.80 <br />5,679.25 <br />1.480 <br />1.470 <br />1.665 <br />2.95 <br />5,679.50 <br />1.508 <br />1.843 <br />1.922 <br />2.50 <br />5,679.75 <br />1.536 <br />2.224 <br />2.149 <br />4.15 <br />5,679.93 <br />1.557 <br />2.502 <br />2.296 <br />4.95 <br />Peak Stage <br />5,680.00 <br />1.565 <br />2.611 <br />2.354 <br />5,680.25 <br />1.593 <br />3.006 <br />2.543 <br />5,680.50 <br />1.621 <br />3.408 <br />2.719 <br />5,680.75 <br />1.650 <br />3.817 <br />2.884 <br />5,681.00 <br />1.679 <br />4.233 <br />3.040 <br />5,681.25 <br />1.708 <br />4.656 <br />3.188 <br />5,681.50 <br />1.737 <br />5.087 <br />3.330 <br />5,681.75 <br />1.766 <br />5.525 <br />3.466 <br />5,681.90 <br />1.784 <br />5.791 <br />3.545 <br />Spillway #2 <br />5,682.00 <br />1.796 <br />5.970 <br />3.596 <br />5,682.25 <br />1.828 <br />6.423 <br />3.723 <br />5,682.50 <br />1.861 <br />6.884 <br />6.591 <br />5,682.75 <br />1.894 <br />7.353 <br />7.845 <br />5,683.00 <br />1.927 <br />7.831 <br />8.924 <br />Spillway #1 <br />5,683.25 <br />1.961 <br />8.317 <br />13.220 <br />5,683.50 <br />1.995 <br />8.811 <br />17.429 <br />Filename: Pond NHN-002 DESIGN 10YR EVENT_5.31.18.sc4 Printed 05-31-2018 <br />Appendix 2.05.3(4)-8 Page 11 June 2018 (TR -17) <br />