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Type. . . . SCS Unit Hyd. Summary <br /> Name. . . . Z-1-01 Event: 25 yr <br /> File. . . . . \sample\C15210.PPK <br /> SCS UNIT HYDROGRAPH METHOD <br /> STORM EVENT: 25 year storm <br /> Duration = 24.0000 hrs Rain Depth = 5.7500 in <br /> Rain Dir = \util\ <br /> Rain File -ID = SCSTYPES.RNF - TypeIII 24hr <br /> Unit Hyd Type = Default Curvilinear <br /> HYG Dir = .\sample\ <br /> HYG File - ID = C15210.HYG - Z-1-01 25 <br /> Tc = .2500 hrs <br /> Drainage Area = 1.650 acres Runoff CN= 98 <br /> Computational Time Increment = 03333 hrs <br /> Computed Peak Time = 12.1667 hrs <br /> Computed Peak Flow = 6.83 cfs <br /> Time Increment for HYG File = .0200 hrs <br /> Peak Time, Interpolated Output = 12.1601 hrs <br /> Peak Flow, Interpolated Output = 6.79 cfs <br /> DRAINAGE AREA <br /> ------------------- <br /> ID:None Selected <br /> CN = 98 <br /> Area = 1.650 acres <br /> S = .2041 in <br /> 0.25 = .0408 in <br /> Cumulative Runoff <br /> ------------------- <br /> 5.5121 in <br /> .758 ac-ft <br /> HYG Volume. . . .758 ac-ft (area under HYG curse) <br /> "'•' UNIT HYDROGRAPH PARAMETERS •'••• <br /> Time Concentration, Tc = .25000 hrs (ID: None Selected) <br /> Computational Incr, Tm = .03333 hrs =, 0.20000 Tp <br /> Unit Hyd. Shape Factor = 483 .432 (37.46% under rising limb)y <br /> K = 483 .33/645.333, K = .7491 (also, K = 2/ (1+(Tr/Tp) ) <br /> Receding/Rising, Tr./To = 1.6698 (solved from K = .7491) <br /> Unit peak, co = 7.48 cfs <br /> Unit peak time Tp = .16667 hrs <br /> Unit receding limb, Tr = .66667 hrs <br /> Total unit time, Tb = .83333 hrs <br /> Coastal Engineering Co. , Inc. <br /> Pond Pack Ver: 8-01-98 (61) Date: 05-07-2001 <br />