Pre 2014 Blogs

SWMM 5 Inlet Control Culvert Equations

Posted by Robert Dickinson on November 8, 2011 at 11:41am

Subject: SWMM 5 Inlet Control Culvert Equations

The newer option for SWMM 5 culverts uses three culvert classifications and associated equations to compute the inlet controlled flow into a culvert using the FHWA (1985) equations. The culvert code in the culvert.c code of SWMM 5 uses:

1. Two Equations for Unsubmerged culvert flow,

2. One Equation for the Transition flow, and

3. One Equation for Submerged flow.

swmm-5-inlet-control-culvert-equations

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