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<br /> <br /> <br />DITCH 5-DlA <br />SEDCAD+ CHANNEL UTILITY <br />----------------------- <br />VEGETATED CHANNEL <br />T <br />******************************** <br />* * <br />* * <br />* Z* <br />* * <br />* * <br />* * <br />* b <br />Discharge <br />Bottom (b) <br />Side slopes (Z) <br />Bed Slope <br />Manning's n <br />• <br /> <br />= 0.51 cfs <br />= 2.00 feet <br />= 1.0:1 <br />= 0.250 $ <br />= 0.176 <br />D <br />Depth (D) _ <br />Top width (T) _ <br />Velocity = <br />Hydraulic Radius = <br />0.70 feet <br />3.40 feet <br />0.26 ft/sec <br />0.48 feet <br />Exhibit 18 Revised 12/8/89 <br />-214- <br />