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} <br /> C:\Program Files�FlydroCAD\Projects\HydroCAD ProjectsW8 JOBS\ <br /> 08175B Barry Sewall Proposed Conditions May 13, 2009 ( Type il 24hr 2 Year Rainfall=2.75" <br /> Prepared by Gronberg &Associates, Inc. Printed 5/20/2009 9:31:36 AM <br /> HydroCAD�9.00 s/n 04529 �2009 Hy�oCAD Softvware Solutions LLC Pa�e 11 <br /> Summary for Pond 5P: Depression <br /> [88]Waming: Qout>Qin may require Finer Routing>1 <br /> Inflow Area= 0.600 ac, 30.00% Impervious, Inflow Depth> 0.59" for 2 Year event <br /> Inflow = 0.41 cfs @ 12.13 hrs, Volume= 0.029 af <br /> Outflow = 0.46 cfs @ 12.12 hrs, Volume= 0.027 af, Atten=0%, Lag=0.0 min <br /> Primary = 0.46 cfs cLD 12.12 hrs, Volume= 0.027 af <br /> Routing by Stor-Ind method,Time Span=5.00-20.00 hrs, dt=0.05 hrs <br /> Peak Elev= 932.25'� 12.10 hrs Surf.Area=0.016 ac Storage= 0.003 af <br /> Plug-Flow detention time=42.9 min calculated for 0.027 af(91%of inflow) <br /> Center-of-Mass det. time= 12.7 min (842.7-830.1 ) <br /> Volume Invert Avail.Storage Storage Description <br /> #1 932.00' 0.022 af Custom Stage Data(Prismatic) Listed below(Recalc) <br /> Elevation Surf.Area Inc.Store Cum.Store <br /> (feet) (acres) (acre-feet) (acre-feet) <br /> 932.00 0.011 0.000 0.000 <br /> 933.00 0.033 0.022 0.022 <br /> Device Routinq Invert Ou�et Devices <br /> #1 Primary 932.20' 18.0' long x 5.0' breadth Broad-Crested Rectangular Weir <br /> Head(feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.6U 1.80 2.00 <br /> 2.50 3.00 3.50 4.00 4.50 5.00 5.50 <br /> Coef. (English) 2.34 2.50 2.70 2.68 2.68 2.66 2.65 2.65 2.65 2.65 <br /> 2.67 2.66 2.68 2.70 2.74 2.79 2.88 <br /> Primary OutFlow Max=0.41 cfs a� 12.12 hrs HW=932.25' (Free Discharge) <br /> t 1=Broad-Cr�ested Rectangular Weir (VUeir Controls 0.41 cfs cLD 0.50 fps) <br />