Gutter Flow Formula

Where q gutter flow rate n mannings coefficient s x roadway cross slope s longitudinal slope t flow width.

Gutter flow formula.

Qw q qs qw 0 057 0 020 0 037 m. D flow depth at curb. 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. Here we can calculate for curb gutter flow rate.

S x roadway cross slope. John wiley sons. Curb gutter flow rate. Or m this depth will vary slightly with the inlet detail used l length of curb opening inlet ft.

Code to add this calci to your website. Curb gutter flow rate. S longitudinal slope. Rearranging equation 10 17 allows a direct solution for required length.

3 s 11 5 step 3 calculate the ratios qw q and sw sxand use figure 11 2 to find an appropriate value of. Martin wanielista robert kersten and ron eaglin. Q total flow reaching inlet cfs or m 3 s c o orifice coefficient 0 67 h depth of opening ft. Step 2 calculate the gutter flow in w qw using the equation.

Where q gutter flow rate n manning s 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. N manning s coefficient. T flow width.