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mLine 12:
Line 12: − + − + − + − + − + − +
→Trapezoidal channel
{{Plainlist|1=Where:
{{Plainlist|1=Where:
*'L' = length of swale in m
*''L'' = length of swale in m
*'Q<sub>p</sub>' = peak flow of the storm to be controlled, in m<sup>3</sup>/s
*''Q<sub>p</sub>'' = peak flow of the storm to be controlled, in m<sup>3</sup>/s
*'m' = swale side slope (dimensionless)
*''m'' = swale side slope (dimensionless)
*'S' = the longitudinal slope (dimensionless)
*''S'' = the longitudinal slope (dimensionless)
*'n' = Manning's coefficeint (dimensionless)
*''n'' = Manning's coefficeint (dimensionless)
*'b' = bottom width of trapezoidal swale, in m.}}
*''b'' = bottom width of trapezoidal swale, in m.}}