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6. Unit peak discharge, qu ...... csm/in = 984.30 <br />7. Runoff, Q .........................in = 0.8490 <br />8. Pond & swap adjustment factor .... Fp = 1.00 <br />9. Peak Discharge,gp ...............cfs = 1.6975 <br />DITCH C15 <br />Channel Type: Trapezoidal, Equal Side Slopes <br />Dimensions: Left Side Slope 2.00:1 <br />Right Side Slope 2.00:1 <br />Base Dimension: 2.00 <br />Wetted Perimeter: 2.82 <br />Area of Wetted Cross Section: 0.44 <br />Discharge: 1.70 cfs <br />Depth of Flow: 0.18 feet <br />Velocity: 3.90 fps <br />Channel Lining: GRASS <br />Freeboard: 0.30 feet <br />DITCH C16 <br />This ditch is an overflow ditch for the inlet to the permanent West Lateral Ditch pipeline. It is meant to <br />handle 20.0 cfs which is the maximum flow of the West Lateral Ditch. It only runs if there is a clog or an <br />emergency in the pipeline or a system flush creates more flow than the pipeline can handle. The ditch is <br />steep since it runs north to Tuttle Draw near 2700 Road. The ditch has an 8.0 feet bottom width, 1.5:1 <br />sideslopes and a 5 feet depth. The bottom of the ditch is on bedrock so even though the slope of the <br />channel is greater than 20% (24 %), no erosion occurs. <br />Revised August 2009(PB06) Attachment 2.05.3(3) -1 -28 <br />