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<br />DITCH SA-D1 <br />SEDCAD+ CHANNEL UTILITY <br />----------------------- <br /> <br />Discharge <br />Side slopes <br />Bed Slope <br />Manning~s n <br />• <br /> <br />VEGETATED CHANNEL <br />T <br />** ~* <br />** ** <br />** Z ** <br />** ** <br />** ** <br />** ** <br />** ** <br />= 2.42 cfs <br />(Z) = 2.0:1 <br />= 4.400 $ <br />= 0.068 <br />D <br />Depth (D) _ <br />Top width (T) _ <br />Velocity = <br />Hydraulic Radius = <br />0.74 feet <br />2.96 feet <br />2.21 ft/sec <br />0.33 feet <br />Exhibit 18 Revised 12/8/89 <br />-36- <br />