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Buhman Culvert Type H24-hr 10-Year Rainfaii=4.25" <br /> Prepared by Civil Methods, Inc. Printed 9/26/2014 <br /> HydroCAD® 10.00-12 s/n 07283 © 2014 HydroCAD Software Solutions LLC Page 2 <br /> Time span=5.00-20.00 hrs, dt=0.05 hrs, 301 points <br /> Runoff by SCS TR-20 method, UH=SCS, Weighted-CN <br /> Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method <br /> Subcatchment 1S: Culvert Runoff Area=15.090 ac 0.00% Impervious Runoff Depth>0.77" <br /> Flow Length=1,350' Tc=42.1 min CN=60 Runoff=7.27 cfs 0.964 of <br /> Pond 2P: Culvert Peak Elev=961.05' Inflow=7.27 cfs 0.964 of <br /> Primary=7.27 cfs 0.964 of Secondary=0.00 cfs 0.000 of Outflow=7.27 cfs 0.964 of <br /> Total Runoff Area = 15.090 ac Runoff Volume = 0.964 of Average Runoff Depth = 0.77" <br /> 100.00% Pervious = 15.090 ac 0.00% Impervious = 0.000 ac <br />