Compute an outflow rating chart for the emergency spillway shown below. Compute outflow values at 1-foot increments from the crest elevation to the top of the berm. Treat the outflow as an entrance to...

Compute an outflow rating chart for the emergency spillway shown below. Compute outflow values at 1-foot increments from the crest elevation to the top of the berm. Treat the outflow as an entrance to a channel. The emergency spillway is a trapezoidal grass-lined channel with bottom width 10.0 feet and side slopes 3 horizontal to 1 vertical (n
0.030).