A long rectangular channel 12 ft wide is laid on a slope of 2.22 ft per 10,000 ft. The channel has an n-value of 0.016 and carries 352 cfs of water at a normal depth of 9 ft. A smooth hump is placed in the bottom of the channel. What would be the depth of flow over a 3 ft high jump. How high can the hump be made without backing flow up? What would be the depth of flow over and just upstream of a 6 ft high jump?