Changes

*''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}}

{{:Manning's n}}