I am trying to implement hydraulic structures-flood protection measures (embankment, flood wall) into the HEC-RAS 1D-2D model. Measures are located right on or next to the existing lateral structure serving as a 2D connection between 1D and 2D.
Would anybody have a suggestion how to implement these structures, since they are overlapping with 2D connection?
You have a couple options here, you can modify the terrain in RAS 6 versions to represent the flood wall and then extend your cross section to beyond the wall such that your lateral structure is behind it. However, in that scenario you may run into instabilities if the drop from the flood wall to the 2D domain goes into critical depth (likely). The other option is just to represent the flood wall within your lateral structure data weir data.