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C:\Program Files�FiydroCAD\Projects\HydroCAD Projects\08 JOBS\ <br /> 08175B Barry Sewall Proposed Conditions May 13, 2008 Type 1124hr?0 Year Rainfa11=4.20" <br /> Prepared by Gronberg 8�Associates, inc. Printed 5/20/2009 9:09:37 AM <br /> HydroCAD�9.00 s/n 04529 �2009 HydroCAD Software Solutions LLC Pa�e 16 <br /> Summary for Pond 1 P: Pond 1, Area 2 <br /> Inflow Area = 0.240 ac, 41.67% Impervious, Inflow Depth> 1.59" for 10 Year event <br /> Inflow = 0.66 cFs� 12.01 hrs, Volume= 0.032 af <br /> Outflow = 0.38 cfs� 12.11 hrs, Volume= 0.032 af, Atten=43%, Lag=6.2 min <br /> Primary = 0.38 cfs� 12.11 hrs, Volume= 0.032 af <br /> Routing by Stor-Ind method, Time Span=5.00-20.00 hrs, dt= 0.05 hrs <br /> Peak Elev= 948.19'� 12.11 hrs Surt.Area= 0.007 ac Storage=0.005 af <br /> Plug-Flow detention time= 7.3 min calculated for 0.032 af(100%of inflow) <br /> Center-of-Mass det. time= 5.6 min (805.3-799.7) <br /> Volume Invert Avail.Storage Storage Description <br /> #1 947.00' 0.052 af Custom Stage Data(Prismatic) Listed below(Recalc) <br /> Elevation Surf.Area Inc.Store Cum.Store <br /> (feet) (acres) (acre-feet) (acre-feet) <br /> 947.00 0.002 0.000 0.000 <br /> 948.00 0.006 0.004 0.004 <br /> 950.00 D.Q18 0.024 0.028 <br /> 951.00 0.029 0.024 0.052 <br /> Device Routing Invert Outlet Devices <br /> #1 Primary 947.00' 4.0" Round Culvert <br /> L= 124.0' CPP, mitered to conform to fill, Ke=0.700 <br /> OuUet Invert=942.50' S= 0.0363'� C� 0.900 <br /> n= 0.010 PVC, smooth interior <br /> Primary OutFlow Max=0.37 cfs� 12.11 hrs HW=948.18' (Free Discharge) <br /> L1=Culvert (Inlet Controls 0.37 cfs cLD 4.29 fps) <br />