Laserfiche WebLink
) <br /> C:�Program Files\HydroCAD\Projects\HydroCAD Projects\08 JOBS\ <br /> 081756 Barry Sewall Existing Conditions May 13, 2009 Type ll 24-hr 100 Year Rainfa11=6.00" <br /> Prepared by Gronberg &Associates, Inc. Printed 5/19/2009 4:17:13 PM <br /> ;-;•fdroCAD�9 00 s/n 04529 �2009 HydroCAD Software Solutions LLC Pa�e 22 <br /> Summary for Pond 5P: Depression 3 <br /> Inflow Area= 3.320 ac, 9.64% Impervious, inflow Depth > 0.76" for 100 Year event <br /> Inflow = 3.90 cfs cLD 12.05 hrs, Volume= 0.211 af <br /> Outflow = 3.85 cfs cLD 12.06 hrs, Volume= 0.207 af, Atten= 1%, Lag= 0.9 min <br /> Primary = 3.85 cfs @ 12.06 hrs, Volume= 0.207 af <br /> Routing by Stor-Ind method,Time Span= 5.00-20.00 hrs, dt= 0.05 hrs <br /> Peak Elev= 932.40'@ 12.06 hrs Surf.Area=0.034 ac Storage= 0.009 af <br /> Plug-Flow detention time= 9.4 min calculated for 0.207 af(98% of inflow) <br /> Center-of-Mass det. time= 3.2 min (813.2-810.0) <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=3.77 cfs @ 12.06 hrs HW=932.40' (Free Discharge) <br /> L1=Broad-Crested Rectangular Weir (Weir Controls 3.77 cfs� 1.05 fps} <br /> , <br />