A l. S-m-diameter culvert (concrete barrel, well-rounded entrance) that is 20 m long is installed on a

Question:

A l. S-m-diameter culvert (concrete barrel, well-rounded entrance) that is 20 m long is installed on a slope of 2 percent. The design discharge is 9.5 m3/sec, and the inlet will be submerged but not the outlet. Determine the depth that will result upstream (above the invert) during the design flood event.