a paved lot that is 150m by 150m sloped in one direction at a rate of 2% has the time of concentration of 6minutes and a five year storm with duration of 6minutes with an intensity of 12mm per hour.the runoff coefficient for this parking lot is 0.83. a.using rational method determine the amount of runoff that would occur for the parking lot b.the runoff from part a be contained in a trapezoidal drainage ditch with the following properties side slope=2m horizontal for every 1m rise width of invert=2m longitudinal slope=0.006m/m roughness coeffiecient =o.070 if the maximum permitted depth of water is 100mm which gives a cross section area of flow=0.22m^2 and a wetted perimeter 0f 2.4 using manning s equation for open channel flow,determine if the ditch will be able to accomodate the flow in part a
a paved lot that is 150m by 150m sloped in one direction at a rate of 2% has the time of concentration of 6minutes and a five year storm with duration of 6minutes with an intensity of 12mm per hour.the runoff coefficient for this parking lot is 0.83.
a.using rational method determine the amount of runoff that would occur for the parking lot
b.the runoff from part a be contained in a trapezoidal drainage ditch with the following properties
side slope=2m horizontal for every 1m rise
width of invert=2m
longitudinal slope=0.006m/m
roughness coeffiecient =o.070
if the maximum permitted depth of water is 100mm which gives a cross section area of flow=0.22m^2 and a wetted perimeter 0f 2.4 using manning s equation for open channel flow,determine if the ditch will be able to accomodate the flow in part a
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