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1 <br />1 <br />t <br />1 <br />1 <br />1 <br />1 <br />Table 2. Hydraulic Characteristics of 100-Year, 24-Hour Peak Runoff. <br />Channel bottom width 30.8 feet <br />Channel side slope 2.3:1 <br />Overbank slope 10:1 <br />Channel slope 0.03 <br />Roughness coefficient 0.045 <br />Flow depth 10 feet <br />Top width 123 feet <br />Area 607.3 square feet <br />Wetted perimeter 126.21 feet <br />Hydraulic radius 4.81 feet <br />Channel capacity 9900 cfs <br />Velocity 16.3 fps <br />