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<br />2058.0010 Prop Drain <br />Prepared by {enter your company name here} <br />HYdroCAOO 8.00 sin 001304 @ 2006 HYdroCAD Software Solutions LLC <br /> <br />Runoff <br /> <br />= <br /> <br />Type 1/24-hr 10-Year; 24 hour Rainfall=4.10" <br />Page 1 0 <br />9/18/2007 <br /> <br />5ubcatchment 15: East area and wetland <br /> <br />6.74 efs @ 11.97 hrs, Volume= <br /> <br />0.316 af, Depth= 2.21" <br /> <br />Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs <br />Type II 24-hr 10-Year; 24 hour Rainfall=4.10" <br /> <br />Tc <br />(min) <br />6.0 <br /> <br />Area (sf) <br />5,777 <br />24,206 <br />44,878 <br />74,861 <br />69,084 <br />5,777 <br /> <br />Length <br />(feet) <br />485 <br /> <br />CN Description <br />98 20th Ave and drive entrance pavement <br />85 Wetland <br />77 Brush, Poor, HSG C <br />81 Weighted Average <br />Pervious Area <br />Impervious Area <br /> <br />Slope <br />(tUft) <br />0.0082 <br /> <br />Velocity <br />(fUsee) <br />1.36 <br /> <br />Capacity Description <br />(efs) <br /> <br />Shallow Concentrated Flow, Wetland <br />Grassed Waterway Kv= 15.0 fps <br />