A suburban street receives storm water runoff at rate of 2.0 L/m-s (on each side). The street has a slope of .8 percent and a cross slope of 2 percent; n = .013. If the street is 10 m wide and can be totally covered by water (depth = 0 at the midpoint), what is the max distance between inlets? Thinking to use modified Manning's equation for triangular gutter cross section Q = K(z/n)(s^.5)[y^(8/3)] Q = gutter flow z = reciprocal of the cross slope of the gutter n = roughness coefficient s= gutter slope y = water depth at the curb K = constant = .38 for metric first I found the Q for the gutter flow Q=? z= 1/.02=50 n = .013 s= .008 y= 5m(.02)=.1m K= .38 so Q = .38(50/.013)(.008^.5)[.1^(8/3)] = .28 m^3/s at this point I am not sure how to use the runoff of 2 L/m-s and the Q = .28 m^3/s to get a max distance between inlets?