Gutter Flow Formula
John wiley sons.
Gutter flow formula. A depressing depth. S x roadway cross slope. S longitudinal slope. Curb gutter flow rate.
D flow depth at curb. Hydrology water quantity and quality control. Code to add this calci to your website. 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.
Rearranging equation 10 17 allows a direct solution for required length. Step 2 calculate the gutter flow in w qw using the equation. Qw q qs qw 0 057 0 020 0 037 m. Martin wanielista robert kersten and ron eaglin.
Curb gutter flow rate. 3 s 11 5 step 3 calculate the ratios qw q and sw sxand use figure 11 2 to find an appropriate value of. Or m this depth will vary slightly with the inlet detail used l length of curb opening inlet ft. Q total flow reaching inlet cfs or m 3 s c o orifice coefficient 0 67 h depth of opening ft.
Or m a gutter depression depth ft. Here we can calculate for curb gutter flow rate. T flow width. Where q gutter flow rate n mannings coefficient s x roadway cross slope s longitudinal slope t flow width.