Question

(35 pts) A highway embankment with a culvert must cross a stream downstream of a pond that has a sluice gate. The slope of the channel = 0.0175 ft/ft and the discharge being released from the pond 289.3 cfs that must pass through the culvert. The culvert size is a 48-in Reinforced Concrete pipe that is 75 ft long. The channel is rectangular that is 10 ft wide with a Manning’s n = 0.025 and the channel runs for a long distance. How far downstream of the gate must the embankment be placed so as not to affect the discharge through the gate (i.e. not drown the gate with backwater)?

Answer 1