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Hydrograph Report Project Name:Dawson Mine <br /> Hydrology Studio v 3.0.0.20 12-15-2021 <br /> Post Basin F Hyd. No. 18 <br /> Hydrograph Type = Rational Peak Flow = 25.32 cfs <br /> Storm Frequency = 10-yr Time to Peak = 0.23 hrs <br /> Time Interval = 1 min Runoff Volume = 21,270 cuft <br /> Drainage Area = 8.84 ac Runoff Coeff. = 0.5* <br /> Tc Method = TR55 Time of Conc. (Tc) = 14.0 min <br /> OF Curve = Canon City.idf Intensity = 5.73 in/hr <br /> Freq. Corr. Factor = 1.00 Asc/Rec Limb Factors = 1/1 <br /> *Composite C Worksheet <br /> AREA(ac) C DESCRIPTION <br /> 6.63 0.38 Undisturbed <br /> 2.21 0.85 GRavel Roadway <br /> 8.84 0.50 <br /> Qp = 25.32 cfs <br /> 28 <br /> 26 <br /> SL <br /> 24 <br /> - iti I I I I I 1 .4 <br /> 22 <br /> 20 <br /> 18 <br /> 16 <br /> SL <br /> 014 <br /> 12 <br /> 10 <br /> 8 <br /> 6 <br /> 4 <br /> 2 <br /> 2, <br /> 0 <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 27 28 <br /> Time(min) <br /> B25 <br />