Gutter Flow Formula

Or m this depth will vary slightly with the inlet detail used l length of curb opening inlet ft.

Gutter flow formula.

Or m a gutter depression depth ft. D flow depth at curb. Qw q qs qw 0 057 0 020 0 037 m. Where q gutter flow rate n manning s coefficient s x roadway cross slope s longitudinal slope t flow width.

A depressing depth. Martin wanielista robert kersten and ron eaglin. Rearranging equation 10 17 allows a direct solution for required length. Hydrology water quantity and quality control.

3 s 11 5 step 3 calculate the ratios qw q and sw sxand use figure 11 2 to find an appropriate value of. S longitudinal slope. Curb gutter flow rate. Where q gutter flow rate n mannings coefficient s x roadway cross slope s longitudinal slope t flow width.

Just copy and paste the below code to your webpage where you want to display this calculator. T flow width. N manning s coefficient. 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.

Code to add this calci to your website. Curb gutter flow rate. Step 2 calculate the gutter flow in w qw using the equation. John wiley sons.