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Hydrograph Report Project Name:Dawson Mine <br /> Hydrology Studio v 3.0.0.20 12-15-2021 <br /> Post Basin B Hyd. No. 4 <br /> Hydrograph Type = Rational Peak Flow = 29.21 cfs <br /> Storm Frequency = 10-yr Time to Peak = 0.22 hrs <br /> Time Interval = 1 min Runoff Volume = 22,782 cuft <br /> Drainage Area = 8.38 ac Runoff Coeff. = 0.59* <br /> Tc Method = TR55 Time of Conc. (Tc) = 13.0 min <br /> OF Curve = Canon City.idf Intensity = 5.91 in/hr <br /> Freq. Corr. Factor = 1.00 Asc/Rec Limb Factors = 1/1 <br /> *Composite C Worksheet <br /> AREA(ac) C DESCRIPTION <br /> 0.56 0.90 Plant/Shop <br /> 1.54 0.82 Plant Pad <br /> 0.6 0.82 Gravel Roads <br /> 2.32 0.60 Side Slopes <br /> 3.36 0.38 Unimproved <br /> 8.38 0.59 <br /> Qp = 29.21 cfs <br /> 32 <br /> 30 <br /> 28 <br /> 26 <br /> 24 <br /> IF <br /> 22 <br /> 20 <br /> 18 <br /> U <br /> 16 <br /> 14 <br /> 12 <br /> 10 <br /> 8 <br /> 6 <br /> 4 <br /> 2 <br /> 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 <br /> Time (min) <br /> B7 <br />