Tuesday, March 3, 2015

Status on HEC-RAS 5.0

Written by Christopher Goodell, P.E., D.WRE  |  WEST Consultants
Copyright © The RAS Solution 2015.  All rights reserved.

Many of us were hoping to see the official release of HEC-RAS version 5.0 around now (end of Feb, early March, 2015), but unfortunately there have been some delays due to a large amount of bug fixes and HEC won't be releasing it as planned.  I haven't been provided with a new date, and I don't want to guess, but I don't think it will be too much longer.  Keep checking back here at The RAS Solution, or at HEC's website for the latest information on the official release.

The good news is this delay will give HEC some more time to include some more really cool and useful features.  Potential new features are shown below.

I don't have all the details on these features yet, but the 2D Area Breaklines tool looks to be a quick and convenient way to align cell faces in your 2D mesh around terrain features-this will save a LOT of time setting up and editing your mesh.  The 2D Area Mann n Region will allow you to draw polygons directly in the HEC-RAS Geometry editor for region-specific n-value factors.  It won't initially replace the need for a land-use shapefile, but will allow you to more easily run calibration on your n values.

In the meantime, the October Beta version of HEC-RAS 5.0 is still available and works very well. You can get the install file here or on the side bar of The RAS Solution.


  1. For those of you, who are in need of creating aligned 2d mesh and can't wait for the official release, there is a free/libre QGIS plugin named RiverGIS that is able to prepare aligned 2d HEC-RAS mesh. The plugin is in pre-alpha stage of development and has only basic functionality and documentation, but if you're familiar with any GIS package, I think it can help. Please, have look at
    If you face any difficulty, please report it on github issues page:

  2. Thanks, this tool is really helpful.

  3. This could be really good, thanks!


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