Curb-opening inlets are placed along a 10-m-wide street. The length of the inlets is 0.8 m, and the inlets are placed on a continuous grade, and the runoff coefficient is 0.85 . The inlets drain stormwater to a triangular gutter with S_X = 0.025 , S = 0.015 , and n = 0.015 . Determine the maximum allowable distance between inlets considering that the rainfall intensity is equal to 10 mm/h and the allowable spread is 1.8 m.