2.7. A watershed has the following characteristics:

A = 2500 ac,

L=3.9 mi.,

S = 52 ft/mi.

,y=1%.

The channel is lined with concrete.The watershed is a residential area with 1/4-ac lots. The soil is categorized as soil group B. Assume that the average watershed slope is the same as the channel slope. Determine the UH for this area for a storm duration of 1 hr using the SCS triangular UH method.