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• 4. Initial abstraction, la............ = 0.5641 <br />5. Compute fa/P ....................... = 0.2821 <br />6. Unit peak discharge, qu......csm/in = 452.95 <br />7. Runoff,Q .........................in = 0.4844 <br />8. Pond & swap adjustment factor,...Fp = 0.75 <br />9. Peak Discharge,gp ...............cfs = 10.7219 <br />DITCH D108 <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: 5.03 <br />Area of Wetted Cross Section: 2.27 <br />Discharge: 10.70 cfs <br />Depth of Flow: 0.68 feet <br />Velocity: 4.70 fps <br />Channel Lining: EARTH WITH SOME GRASS <br />Freeboard: 0.30 feet <br />DITCH D109 <br />• REVISED MARCH2O06 Attachment 2.05.3(3)-1-55 <br />