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3. Design details <br />Discharge ......................... ..............................: <br />30.20 cfs <br />Depth of Flow ..................... ..............................: <br />1.96 feet <br />Velocity .......................... ..............................: <br />2.50 fps <br />Channel Lining .................... ..............................: <br />Oridinary firm loam <br />Freeboard ......................... ..............................: <br />0.30 feet <br />DITCH C6 (Removed from site.) <br />DITCH C7 <br />Time of Concentration (SCS Method) <br />Curve Number: 85 <br />Length of Flow (ft): 1327.47 <br />Average Land Slope (percent): 14.8 <br />Time of Concentration (hrs): 0.15 <br />DITCH C7 <br />Graphical Peak Discharge <br />Project: NUCLA MINE <br />By: GL Date: 02/16/06 <br />Location: DITCH C7 <br />Checked: Date: <br />Developed <br />1. Data: <br />Drainage area: .................... <br />A = 5.8000 Acres <br />Runoff Curve Number: ............. <br />CN = 85 <br />Time of Concentration: ........... <br />Tc = 0.15 <br />Storm Type: ....................... <br />=11 <br />Pond and swamp areas spread <br />throughout watershed ............... <br />= 0.00 percent of A <br />Revised August 2009(PB06) Attachment 2.05.3(3) -1 -16 <br />