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Manning's n-values, Runoff Coefficients, Pipe Sizes & more
A list of Manning's n-values
Runoff Coefficients (C)
Rational method runoff coefficients are tabulated below. Note that Stormwater Studio allows you to compute composite coefficients with up to...
Programmed Pipe Sizes
Pipe sizes used in Stormwater Studio when it designs
Standard Elliptical Pipe Dimensions
Elliptical pipes and their round equivalents
Standard Arch Pipe Dimensions
Arch pipe dimensions and their circular equivalents