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� <br /> 4 <br /> ► � <br /> C:\Program Files\HydroCAD�Projects\HydroCAD Projeats\08 JOBS1 <br /> 081756 Barry Sewall Existing Condltions May 13, 2009 Type 1124-hr 100 Year Rainfa11=6.00" <br /> Prepared by Gronberg 8�Associates, Inc. Printed 5/19/2009 4:17:13 PM <br /> N•�droCAD�S 00 s/n 04529 �2009 HydroCAD Software Solutions LLC PaS�e 24 <br /> Summary for Pond D2: Depression 2 <br /> Inflow Area= 1.980 ac, 6.06% Impervious, Inflow Depth > 1.08" for 100 Year event <br /> Inflow = 2.10�fs cLD 12.03 hrs, Volume= 0.178 af <br /> Outflow = 0.00 cfs� 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= 946.13'@ 20.00 hrs Surf.Area=0.213 ac Storage= 0.178 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 Storage Storaqe Description <br /> #1 944.80' 0.401 af Custom Stage Data(Prismatic) Listed below(Recalc) <br /> Elevation Surf.Area Inc.Store Cum.Store <br /> (feet) (acres) (acre-feet) (acre-feet) <br /> 944.80 0.030 0.000 0.000 <br /> 945.00 0.080 0.011 0.011 <br /> 946.00 0.200 0.140 0.151 <br /> 947.00 0.300 0.250 0.401 <br /> Device Routing Invert Outlet Devices <br /> #1 Primary 946.60' 2.0' long x 100.0' 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=944.80' (Free Discharge) <br /> L1=Broad-Crested Rectangular Weir (Controls 0.00 cfs) <br />