NCEES Civil PE Specification Hydraulics and Hydrology: Storm characteristics and runoff analysis (SCS/NRCS method)
Problem
A basin with an area of 25 acres retains approximately 5.0 inches of water. For a 4-hour storm with an average rainfall rate of 1.5 inches per hour, determine the runoff depth (in inches) using the NRCS Rainfall-Runoff method.
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