Compute the water surface profile at 30.5-m (100-ft) intervals for 305 m (1 ,000 ft) for d...

Compute the water surface profile at 30.5-m (100-ft) intervals for 305 m (1 ,000 ft) for discharge rates of 141.6, 283.3, 424.9, and 566.6 cms (5,000, 10,000, 15,000, and 20,000 cfs)

Starting with critical depth. The channel slope is 0.001. A typical cross-section of the channel is below.