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Area of Wetted Cross Section: 1.35 <br />Channel Slope: 3.0000 <br />Manning's n of Channel: 0.0425 <br />Discharge: 3.90 cfs <br />Depth of Flow: 0.40 feet <br />Velocity: 2.88 fps <br />Channel Lining: Excavated, Brush on Bank <br />Freeboard: 0.30 feet <br />DITCH C31 <br />Curve Number: 82 <br />Length of Flow: 2801.60 ft <br />Average Land Slope: 3.97 % <br />Time of Concentration: 0.569 hrs, 34.1 mins <br />DITCH C31 <br />Graphical Peak Discharge <br />Project: NUCLA MINE <br />By: BL Date: 17/15/09 <br />Location: DITCH C31 <br />Checked: Date: <br />Developed <br />1. Data: <br />Drainage area: .................... <br />A = 38.6676 Acres <br />Runoff Curve Number: ............. <br />CN = 82 <br />Time of Concentration: <br />........... Tc = 0.57 <br />Storm Type: ....................... <br />=11 <br />Pond and swamp areas spread <br />throughout watershed ............... <br />= 0.00 percent of A <br />0.0000 Acres <br />Revised August 2009(PB06) Attachment 2.05.3(3) -1 -59 <br />