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Support Policy

 

HEC-RAS has been developed for the U.S. Army Corps of Engineers. It is also available for download and use by individuals outside of the Corps of Engineers without charge. HEC will not provide user assistance or support for this software to non-Corps users. See the software Support Policy to locate organizations that provide the program, documentation, and support services for a fee.  Downloading, installing, and using   this software indicates your acceptance of HEC's Terms and Conditions for use of HEC Software. Please see the distribution policy for additional details.

 

HEC-RAS 4.0:
This setup package includes HEC-RAS 4.0, Documentation, and Example Projects.

Important:
During the installation of HEC-RAS 4.0, HEC-RAS 4.0 Beta will be automatically removed.

If you would like to continue using HEC-RAS 4.0 Beta, please download an updated installation package below. There are known issues with the original HEC-RAS 4.0 Beta installation package that will conflict with HEC-RAS 4.0.

HEC-RAS 4.0 Setup Package (45.4 MB)
Primary Download Site | Alternate Download Site

Supported Operating Systems:
Windows XP 32-bit/64-bit and Windows Vista 32-bit/64-bit.

HEC-RAS 4.0 Documentation:

f1_c.gif Release Notes
f1_c.gif What's New

Archived Versions:

HEC-RAS 3.1.1 Download Download HEC-RAS 4.0 Beta (35.6MB)
HEC-RAS 3.1.1 Download Download HEC-RAS 3.1.3 (39.7MB)
HEC-RAS 3.1.1 Download Download HEC-RAS 3.1.1 (19MB)
HEC-RAS 2.2 Download Download HEC-RAS 2.2 (8MB)

 

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