Determine the size of a concrete outlet pipe to limit the discharge from a detention basin...

Determine the size of a concrete outlet pipe to limit the discharge from a detention basin to 5.7 cms (201 cfs) under a head of 5.0 m (16.4 ft). The outlet pipe has an entrance loss coefficient of 1.2, a Manning "n" value of 0.015, and an exit loss coefficient of 1.0.