I'm using HEC-RAS to model a floodplain in which a drainage ditch splits at a point, then recombines some distance downstream. I've attached a schematic of the system showing what I'm calling the Main Reach and the Bypass Reach. After the split (XSEC 11+12), the Main Reach routes through a...
I'm working on a very simple HEC-HMS model consisting of one drainage area, and one detention pond with a culvert as the primary outlet, and the dam top as the auxillary outlet. This model works fine.
The problem comes when I copied this model to test a condition when the primary outlet...
Hello, all. One of my clients, a local municipality, is in the process of developing a new floodplain management ordinance. They have requested that we provide them with some recommendations as to best practices within Zone A riverine floodplains. They want to include in the ordinance a rule...
Hi, all. To summarize my situation and goal, I am trying to design a solution to lower the current water surface elevations along an existing rention pond/channel. Due to various constraints on the property, the most viable option I have right now is extending the existing pond and...
