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, <br /> . <br /> C:�Program Files�FiydroCAD�Projects\HydroCAD Projects\08 JOBS\ <br /> 08175B Barry Sewall Existing Conditions May 13, 2009 Type 1124hr 2 Year Rainfa11=2.75" <br /> Prepared by Gronberg 8 Associates, Inc. Printed 5/19/2009 4:17:13 PM <br /> HydroCAD�9 00 s/n 04529 �2009 HydroCAD Software Solutions LLC PaCe 9 <br /> Summary for Pond D1: Depression <br /> inflow Area= 1.060 ac, 9.43% Impervious, Inflow Depth> 0.18" for 2 Year event <br /> Inflow = 0.16 cfs� 12.07 hrs, Volume= 0.016 af <br /> Outflow = 0.00 cfs cLD 5.00 hrs, Volume= 0.000 af, Atten= 100%, Lag=0.0 min <br /> Primary = 0.00 cfs� 5.00 hrs, Volume= 0.000 af <br /> Routing by Stor-Ind method, Time Span=5.00-20.00 hrs, dt=0.05 hrs <br /> Peak Elev=947.34'�20.00 hrs Surf.Area= 0.056 ac Storage= 0.016 af <br /> Plug-Flow detention time= (not calculated: initial storage excedes outflow) <br /> Center-of-Mass det. time= (not calculated: no outflow) <br /> Volume Invert Avail.Storaqe Storage Description <br /> #1 947.00' 0.330 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 0.040 0.000 0.000 <br /> 950.00 0.180 0.330 0.330 <br /> Device Routing Invert Outlet Devices <br /> #1 Primary 948.10' 2.0'long x 66.0' breadth Broad-Crested Rectangular Weir <br /> Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 <br /> Coef. (English) 2.68 2.70 2.70 2.64 2.63 2.64 2.64 2.63 <br /> Primary OutFlow Max=0.00 cfs�5.00 hrs HW=947.00' (Free Discharge) <br /> t-1=6road-Crested Rectangular Weir (Controls 0.00 cfs) <br />