How does the program compute a gutter flow analysis?
The gutter flow analysis is done according to equations and specifications found in the FHWA (Federal Highway Administration) HEC-22 manual.
The spread/ top width (stop) in my gutter is N/A
What are the differences between HEC-22 3rd edition and HEC-22 2nd edition headloss methods?
Unexpected spread and depth results for a curb inlet in sag with local depression