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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 />Device Routing Invert Outlet Devices <br />0 0 <br />u. <br />Summary for Pond 6P: MH 406 <br />[82] Warning: Early inflow requires earlier time span <br />[57] Hint: Peaked at 870.25' (Flood elevation advised) <br />[80] Warning: Exceeded Pond 11P by 0.79' @ 12.12 hrs (3.35 cfs 0.063 af) <br />Routing by Dyn -Stor -Ind method, Time Span= 5.00 -20.00 hrs, dt= 0.01 hrs <br />Peak Elev= 870.25' @ 11.98 hrs <br />Pond 6P: MH 406 <br />Hydrograph <br />Type 11 24-hr 100 -yr Rainfall = 5.90" <br />Printed 12/1/2010 <br />Page 24 <br />Inflow Area = 0.154 ac,100.00% Impervious, Inflow Depth > 5.18" for 100 -yr event <br />Inflow = 1.34 cfs @ 11.95 hrs, Volume= 0.066 af <br />Outflow = 1.34 cfs @ 11.95 hrs, Volume= 0.066 af, Atten= 0 %, Lag= 0.0 min <br />Primary = 1.34 cfs @ 11.95 hrs, Volume= 0.066 af <br />#1 Primary 866.16' 12.0" Round Culvert <br />L= 96.0' RCP, square edge headwall, Ke= 0.500 <br />Inlet / Outlet Invert= 866.16' / 865.68' S= 0.0050'/' Cc= 0.900 <br />n= 0.013 Concrete pipe, straight & clean <br />Primary OutFlow Max =1.06 cfs @ 11.95 hrs HW= 870.14' TW= 870.01' (Dynamic Tailwater) <br />L1= Culvert (Outlet Controls 1.06 cfs @ 1.34 fps) <br />v <br />o$ <br />00. <br />6 <br />8 <br />10 11 12 13 14 <br />Time (hours) <br />Inflow Area =0.154 ac <br />Peak E 870.25' <br />12.0" <br />Round Culvert <br />n =0.013 <br />L- 96.0' <br />S= 0.0050 /' <br />15 <br />16 <br />17 <br />18 <br />19 <br />❑ Inflow <br />❑ Primary <br />