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<br />1 <br />' DIVERSION DITCH DESIGN (D-1) <br /> <br />' 1. Ditch 1 <br /> 2. Description: Diversion Ditch <br />' <br />i 3. Ditch Grade: 1% <br />' 4. Area Drained: 6.2 acres <br /> 5. Peak Discharge: (5)(1.12)(1.0) = 5.6 <br />' 6. Ditch Design: <br /> N = .030 <br />' " <br />" <br /> walls 2:1 slopes <br />Use Ditch w/ <br />v <br />' (See chart 1031.22 and Calculations below) <br />' From chart 2' FB DT D=0.63 A= 2D + 2Dz V= 2.8 <br /> = 1.26 + .79 <br />' = 2.05 <br /> Depth For "v" DT w/2:1 SC I) <br />' Z <br />' = 2.05 <br />-~ <br /> = 1.01 <br />' <br /> D = 1.01 Feet Deep <br />' Freeboard = 0.5 <br /> 1.01 + 0.5 = 1.51 <br />' D = 1.51 <br /> <br />1 <br /> ~~ <br />