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mLine 9:
Line 9: − + + + + +
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*''P'' = the wetted perimeter of the swale (m)
*''P'' = the wetted perimeter of the swale (m)
*''S'' = the longitudinal slope (m/m)
*''S'' = the longitudinal slope (m/m)
*''n'' = [[Manning's coefficient]] (dimensionless)}}
*''n'' = [[Manning's coefficient]] or 'Manning's n' (dimensionless)}}
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{{:Manning's n}}