Or m this depth will vary slightly with the inlet detail used l length of curb opening inlet ft.
Gutter flow formula.
Curb gutter flow rate.
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Or m g acceleration due to gravity 32 2 ft s 2 or 9 81 m s 2 y depth of water in the curb and gutter cross section ft.
Hydrology water quantity and quality control.
A depressing depth.
S longitudinal slope.
Martin wanielista robert kersten and ron eaglin.
Rearranging equation 10 17 allows a direct solution for required length.
Q total flow reaching inlet cfs or m 3 s c o orifice coefficient 0 67 h depth of opening ft.
N manning s coefficient.
Qw q qs qw 0 057 0 020 0 037 m.
S x roadway cross slope.
Where q gutter flow rate n mannings coefficient s x roadway cross slope s longitudinal slope t flow width.
Where q gutter flow rate n manning s coefficient s x roadway cross slope s longitudinal slope t flow width.
T flow width.
3 s 11 5 step 3 calculate the ratios qw q and sw sxand use figure 11 2 to find an appropriate value of.
Curb gutter flow rate.
Or m a gutter depression depth ft.
D flow depth at curb.