A developer proposes improvements to the East Creek subwatershed that will increase the peak flow of the

Question:

A developer proposes improvements to the East Creek subwatershed that will increase the peak flow of the 100-yr storm by 1000 cfs. The developer contends that there will be no change in the 100-yr elevations on the East Creek above point C. Determine the 100-yr water surface profile for East Creek. Use an interval of (y = 0.15 ft. up to y = 1.1 yn. Discuss?