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� <br /> C:\Program Files\HydroCAD�Projects\HydroCAD Projects108 JOBS\ <br /> 08175B Barry Sewall Proposed Conditions May 13, 2009 ( Type ll 24-hr 2 Year Rainfall=2.75" <br /> Prepared by Gronberg &Associates, Inc. Printed 5/20/2009 9:31:36 AM <br /> HydroCAD�9.00 s/n 04529 �2009 HydroCAD Software Solutions LLC Paae 10 <br /> Summary for Pond 4P: STMH 1 <br /> [57] Hint: Peaked at 930.41' (Flood elevation advised) <br /> Inflow Area= 2.726 ac, 11.59% Impervious, Inflow Depth > 0.11" for 2 Year event <br /> Inflow = 0.21 cfs� 12.17 hrs, Volume= 0.025 af <br /> Outflow = 0.21 cfs(d3 12.17 hrs, Volume= 0.025 af, Atten= 0%, Lag=0.0 min <br /> Primary = 0.21 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= 930.41' a� 12.17 hrs <br /> Device Routing Invert Outlet Devices <br /> #1 Primary 930.20' 12.0" Round Culvert <br /> L=69.0' RCP, rounded edge headwall, Ke= 0.100 <br /> Outlet Invert=929.50' S= 0.0101 'P C�0.900 <br /> n= 0.011 Concrete pipe, straight 8�clean <br /> Primary OutFlow Max=0.21 cfs aQ 12.17 hrs HW=930.41' (Free Discharge) <br /> L1=Culvert (Barrel Controls 0.21 cfs @ 2.69 fps) <br />