The HEC-RAS website provides a number of resources, which include helping the user download software, learn how to use HEC-RAS, resolve problems, report bugs, and suggest improvements to …

HEC-RAS has been developed for the U.S. Army Corps of Engineers (USACE). However, software developed at the Hydrologic Engineering Center is made available to the public whenever …

The HEC-RAS team is excited to present the RAS 2025 Alpha! Today, RAS is still built on the foundational code that began in 1993. Technology and engineering have changed dramatically since …

HEC-RAS also has an extensive spatial data integration and mapping system (HEC-RAS Mapper). Overview of Program Capabilities HEC-RAS is designed to perform one-dimensional and two …

HEC-RAS Documentation Home Page The HEC-RAS Documentation Home Page is the most comprehensive source of documentation on HEC-RAS. The home page contains User's Manuals, …

Foreword Introduction to HEC-RAS Installing HEC-RAS Working With HEC-RAS Working with Projects Entering and Editing Geometric Data

HEC-RAS is designed to perform one and two-dimensional hydraulic calculations for a full network of natural and constructed channels. The following is a description of the major capabilities of HEC …

HEC-RAS Training HEC-RAS Training page provides links to training materials including videos from lectures and webinars, and workshop material from training classes.

Instruction and reference material for performing modeling tasks in HEC-RAS.

HEC-RAS Known Issues HEC-RAS Release Notes Sediment Documentation HEC-RAS 1D Sediment Transport HEC-RAS 2D Sediment Transport Mud and Debris Flow Additional Resources