This command calculates peak flow using the rational method, Q=CIA, with rainfall intensity coefficients specific to regions of Kentucky. The program is run through the dialog shown below. The weighted Runoff Coefficient or C-factor can be calculated by the Curve Number & Runoff routine. The peak flow value can then be used for Detention Pond Sizing or Channel Design.
Pulldown Menu Location: Watershed
Keyboard Command: peakflw2
Prerequisite: None