Laserfiche WebLink
C:�Program FilesU�lydroCADlProjects�tiydroCAD Projects\08 JOBS\ <br /> 081756 Barry Sewall Existing Conditions May 13, 2009 Type 1124-hr 2 Year Rainfall=2.75" <br /> Prepared by Gronberg &Associates, Inc. Printed 5/19/2009 4:17:13 PM <br /> HydroCAD�9.00 s/n 04529 �2009 HydroCAD Software Solutions LLC Paae 8 <br /> Summary for Pond 5P: Depression 3 <br /> Inflow Area= 3.320 ac, 9.64% Impervious, Inflaw Depth> 0.10" for 2 Year event <br /> Inflow = 0.34 cfs� 12.09 hrs, Volume= 0.029 af <br /> Outflow = 0.28 cfs� 12.17 hrs, Volume= 0.025 af, Atten= 17%, Lag= 5.2 min <br /> Primary = 0.28 cfs� 12.17 hrs, Volume= 0.025 af <br /> Routing by Stor-Ind method, Time Span=5.00-20.00 hrs, dt=0.05 hrs <br /> Peak Elev= 932.24'� 12.17 hrs SurF.Area=0.024 ac Storage=0.004 af <br /> Plug-Flow detention time=55.2 min calculated for 0.025 af(88% of inflow) <br /> Center-of-Mass det. time= 19.9 min (882.7-862.7) <br /> Volume Invert Avail.Storage Storage Description <br /> #1 932.00' 0.039 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 0.010 0.000 0.000 <br /> 933.00 0.069 0.039 0.039 <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=0.25 cfs @ 12.17 hrs HW=932.23' (Free Discharge) <br /> t-1=Broad-Cr+ested Rectangular Weir (Weir Controls 0.25 cfs�0.42 fps) <br />