A property consists of 0.7 ha of a parking lot (runoff coefficient = 0.92), 2.8 ha of a grass field (runoff coefficient = 0.21, and 37 ha of a residential area (runoff coefficient = 0.47). Note that one hectare (ha) is 10,0000 square meters.. Use the rational formula to compute the peak flow in cubic meters per second (cms) for a design rainfall intensity of 74 mm/hr.

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To calculate the peak flow using the rational formula you can use the following formula Qp CiA Where ... View the full answer