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UWA10002 - Alley Ponding <br />Prepared by {enter your company name here} <br />HydroCAD® 9.10 s/n 01542 © 2009 HydroCAD Software Solutions LLC <br />Summary for Pond 14P: RD 410B <br />[82] Warning: Early inflow requires earlier time span <br />[57] Hint: Peaked at 870.14' (Flood elevation advised) <br />Inflow Area = 0.297 ac,100.00% Impervious, Inflow Depth > 5.18" for 100 -yr event <br />Inflow = 2.57 cfs @ 11.96 hrs, Volume= 0.128 af <br />Outflow = 2.57 cfs @ 11.96 hrs, Volume= 0.128 af, Atten= 0 %, Lag= 0.0 min <br />Primary = 2.57 cfs @ 11.96 hrs, Volume= 0.128 af <br />Routing by Dyn -Stor -Ind method, Time Span= 5.00 -20.00 hrs, dt= 0.01 hrs <br />Peak Elev= 870.14' @ 11.97 hrs <br />Device Routing Invert Outlet Devices <br />#1 Primary 865.89' 12.0" Round Culvert <br />L= 56.0' CPP, square edge headwall, Ke= 0.500 <br />Inlet / Outlet Invert= 865.89' / 865.33' S= 0.0100 '/' Cc= 0.900 <br />n= 0.010 PVC, smooth interior <br />Primary OutFlow Max =2.43 cfs @ 11.96 hrs HW= 870.10' TW= 869.68' (Dynamic Tailwater) <br />L1= Culvert (Inlet Controls 2.43 cfs @ 3.10 fps) <br />0 <br />0 <br />LL <br />Pond 14P: RD 410B <br />Hydrograph <br />44 <br />! <br />2.57 cls <br />•.• <br />10. <br />i/o <br />6 7 8 9 10 11 12 13 <br />Time (hours) <br />Type 11 24-hr 100 -yr Rainfall = 5.90" <br />Printed 12/1/2010 <br />Page 35 <br />Inflow Area =0.297 ac <br />Peak E <br />Iev= 870.14' <br />12.0" <br />Round Culvert <br />n =0.010 <br />L- 56.0' <br />s= 0.0100 /' <br />14 <br />15 <br />16 <br />17 <br />18 <br />19 <br />20 <br />❑ Inflow <br />❑ Primary <br />