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58 <br /> Hydrograph Report <br /> Hydraflow Hydrographs Extension for AutoCAD®1 Civil 3D®2011 by Autodesk,Inc.v8 Friday,Aug 31,2012 <br /> Hyd. No. 1 <br /> Pre-Dev Site <br /> Hydrograph type = SCS Runoff Peak discharge = 18.64 cfs <br /> Storm frequency = 2 yrs Time to peak = 732 min <br /> Time interval = 1 min Hyd. volume = 99,006 cuft <br /> Drainage area = 47.060 ac Curve number = 60* <br /> Basin Slope = 0.0 % Hydraulic length = 0 ft <br /> Tc method = TR55 Time of conc. (To) = 26.60 min <br /> Total precip. = 3.60 in Distribution = Type II <br /> Storm duration = 24 hrs Shape factor = 484 <br /> "Composite(AreafCN)=[(0.130 x 98)+(1.540 x 61)+(45.390 x 60)]147.080 <br /> Pre-Dev Site <br /> Q (cfs) Q (cfs) <br /> Hyd. No. 1 —2 Year <br /> 21.00 21.00 <br /> 18.00 18.00 <br /> 15.00 - 15.00 <br /> 12.00 12.00 <br /> 9.00 9.00 <br /> 6.00 6.00 <br /> 3.00 3.00 <br /> 0.00 - - 0.00 <br /> 0 120 240 360 480 600 720 840 960 1080 1200 1320 1440 1560 <br /> Time(min) <br /> Hyd No. 1 <br />