Compute the runoff hydrographs from the watershed in Problem 10.22 based on the following...

Compute the runoff hydrographs from the watershed in Problem 10.22 based on the following values of incremental precipitation excess.

Problem 10.22

Compute the before and after development unit hydrographs for a 16.2-ha (40-ac) commercial development. The time of concentration before development ,s 60 min­utes and after development is 30 minutes. Use dt = 0.167 hour.