Thanks a lot, gbam. Thing is, I have to send my surveyors out to topo the creek, so I need to know the limits before I do any analysis. I've seen a few things referenced, such as, "at least to a point above the 500-year flood elevation", etc., and, "500 feet upstream and downstream", but these...
Great forum, folks! Brand new here, and a HEC newbie, also, so please bear with me ...
I'm beginning a HEC-RAS analysis of a creek for a bridge design. What are the required limits (upstream and downstream) for the creek cross sections?
(I used the search function and noted that this...
