froude,
Let me explain a little first. The study area is bounded on either end by a culvert. The first downstream cross-section is 100 feet down from the lower culvert, I set downstream boundary condition as the WSE calculated by the original study for that cross-section. Those first two...
I am a consultant conducting a riverine floodway analysis to provide updated flood plain elevations. I have the HEC 2 output used by FEMA in the most recent FIS for the waterway. When I put it in HEC 2 along with the updated cross-sections and culvert data, it works perfectly. However, I...
