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HEC-GeoRAS
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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 4.1:
This setup package includes HEC-RAS 4.1, Documentation, and Example Projects.

HEC-RAS 4.1 Setup Package (49.7 MB)
Primary Download Site | Alternate Download Site

Supported Operating Systems:
Windows XP, Vista, and 7, both 32-bit and 64-bit

HEC-RAS 4.1 Documentation:

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

RAS Mapper Example Data:

This file contains an HEC-RAS model, output, and terrain dataset to perform floodplain mapping using the RAS Mapper.

HEC-RAS 3.1.1 Download Download RAS Mapper Example Data (6.66 MB)

Archived Versions:

HEC-RAS 3.1.1 Download Download HEC-RAS 4.0 (45.4 MB)
HEC-RAS 3.1.1 Download Download HEC-RAS 4.0 Beta (35.6 MB)
HEC-RAS 3.1.1 Download Download HEC-RAS 3.1.3 (39.7 MB)
HEC-RAS 3.1.1 Download Download HEC-RAS 3.1.1 (19 MB)
HEC-RAS 2.2 Download Download HEC-RAS 2.2 (8 MB)

 

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