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Status Needs Review
Products FlowMaster
Created by Guest
Created on Jul 21, 2026

Incorporate FHWA TechNote 22-061 equations for on-grade side opening inlet calcs.

The current HEC-22 calcs are unconservative. All users would benefit. For example, I ran a calc that showed 0.67 cfs bypass, when the correct calc showed 0.76 cfs.