Inputs
FHWA HDS-5 inlet/outlet control analysis.
Project Information
Method: Inlet HW/D = c·(1.811·Q/AD^0.5)² + Y − 0.5S. Outlet HW = h_o + H − LS where H = (1+Ke+19.6n²L/R^1.333)·V²/2g. Governing HW = max(inlet, outlet).
References: Design methodology per FHWA Hydraulic Design Series 5 (HDS-5), v1 simplified inlet/outlet control with single-form inlet and free outfall
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