Determine the change in SCS synthetic unit hydrograph of Problem 11.6.8 if the farmland is developed into

Question:

Determine the change in SCS synthetic unit hydrograph of Problem 11.6.8 if the farmland is developed into an industrial park.
Problem 11.6.8
A 400-acre watershed just south of Chicago is currently farmed with small grain crops. The soils are primarily clay, the hydraulic length of the watershed is about 1 mile, and the average land slope is 2 percent. Determine the SCS synthetic unit hydrograph before development.