Question: DRAINAGE MANUAL RATIONAL METHOD Culvert Design Return Period = 1 0 yrs Catchment Area = 0 . 7 2 km 2 Catchment Length ( longest

DRAINAGE MANUAL RATIONAL METHOD
Culvert Design Return Period =10yrs
Catchment Area =0.72 km2
Catchment Length(longest collector)=0.93km
Catchment Height Variation =458m
Annual Average Rainfall =1100 mm
Calculate the Peak discharge and the size of the pipe

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