Wednesday, October 5, 2016

HEC-RAS Version 5.0.3 has been released!

Version 5.0.3 is now available from the HEC website.  Besides bug fixes, there are a few new or improved features of note:  
  • Culvert Inlet/Outlet Control
  • Using 2D Flow Equations at Lateral Structures
  • Flow and Volume Time Series Output on Profile Lines in RAS Mapper
  • Profile Line Point and Tick Marks
  • Legend for RAS Mapper
  • Improvements to sloping and hybrid map rendering modes
Please read the release notes for more information.

Version 5.0.3 can be downloaded here:

Good luck and enjoy!


  1. interest, but it can be used for modelling of flow over lateral spillway (side channel spillway)? thanks

  2. The new "Hybrid" rendering mode option is exciting, but it does not appear that you can export a Raster based on Terrain (saved to disk) anything but the old default "Sloping (Interpolated Values)"

    Has anyone else had trouble exporting rasters other than in the Sloping rendering mode?

    1. Hi Derek,

      I've experienced the same issue. Have you been able to find a solution yet?

  3. Having a couple of problems with 5.0.3:

    1. Tried running a 1D model developed in 5.0.0, and the run stalled trying to complete the "Layer: XS Interpretation Surfaces" under "Write Geometry Information". The model ran in 5.0.1.

    2. A minor issue, but if I add interpolated cross-sections, the HTab table starting points for the interpolated sections are often below the invert, so I have to reset them to the invert. I don't remember this being an issue with previous versions, as it's caught me out a few times with 5.0.3.

    1. I noticed issue number 2 as well. It's easy to fix but still annoying to have to do every time you interpolate cross sections. I'll let HEC know about it, but until 5.1 comes out, we'll have to live with it.