A trapezoidal channel of 2.0 m bed width and 3: 2 side slope rakes water from a large reservoir. The bed level at the channel entrance is 2.8 m below the water level in the reservoir and the Manning...

A trapezoidal channel of 2.0 m bed width and 3: 2 side slope rakes water from a large reservoir. The bed level at the channel entrance is 2.8 m below the water level in the reservoir and the Manning roughness coefficient, n, 0.018. Find channel delivery if its bed slope is 0.008.