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. <br /> , <br /> r <br /> C:\Program Files\HydroCAD�Projects\HydroCAD Projects\08 JOBS\ <br /> 081756 Barry Sewall Proposed Conditions May 13, 2009 Type 1124-hr 100 Year Rainfall=6.00" <br /> Prepared by Gronberg &Associates, Inc. Printed 5/20/2009 9:31:36 AM <br /> HydroCAD�9.00 s/n 04529 �2009 HydroCAD Soflware Solutions LLC Pa�e 27 <br /> Summary for Pond 5P: Depression <br /> Inflow Area = 0.600 ac, 30.00% Impervious, inflow Depth > 2.74" for 100 Year event <br /> Inflow = 2.10 cfs @ 12.11 hrs, Volume= 0.137 af <br /> Outflow = 2.10 cfs @ 12.12 hrs, Volume= 0.134 af, Atten= 0%, Lag= 0.6 min <br /> Primary = 2.10 cfs� 12.12 hrs, Volume= 0.134 af <br /> Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs <br /> Peak Elev= 932.34' @ 12.12 hrs Surf.Area= 0.018 ac Storage=0.005 af <br /> Plug-Flow detention time= 12.1 min calculated for 0.134 af(98% of inflow) <br /> Center-of-Mass det. time= 4.6 min (801.9-797.3) <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 Routing Invert Outlet 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 1.60 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=2.07 cfs @ 12.12 hrs HW=932.33' (Free Discharge} <br /> L1=Broad-Crested Rectangular Weir (Weir Controls 2.07 cfs�0.86 fps) <br />