HEC-RAS - United States Army
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 CEIWR-HEC products and service.
HEC-RAS Downloads - United States Army
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 appropriate. Use is not restricted and individuals outside of USACE may use the program without charge.
HEC-RAS Features - United States Army
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-RAS. User Interface. Hydraulic Analysis Components.
Introduction to HEC-RAS - United States Army
The NexGen project encompasses several aspects of hydrologic engineering, including: rainfall-runoff analysis (HEC-HMS); river hydraulics (HEC-RAS); reservoir system simulation (HEC-ResSim); flood damage analysis (HEC-FDA and HEC-FIA); and real-time river forecasting for reservoir operations (CWMS).
HEC-RAS User's Manual - United States Army
Troubleshooting With HEC-RAS. Performing Channel Design/Modifications. Advanced Features for Unsteady Flow Routing. User Defined Rules for Hydraulic Structures and Pumps. Automated Calibration of Manning’s n Values for Unsteady Flow. Pipe Networks (Beta) Model Comparison Tool. References.
HEC-RAS Documentation - United States Army
The HEC-RAS Documentation Home Page is the most comprehensive source of documentation on HEC-RAS. The home page contains User's Manuals, Hydraulic References, Application Guides and more covering topics in 1D, 2D and sediment hydraulics.
HEC-RAS Documentation - United States Army
HEC-RAS Applications Guide. Copyright © 2024 USACE Hydrologic Engineering Center • Powered by Scroll Viewport and Atlassian Confluence.
HEC-RAS Guides and Tutorials - United States Army
Instruction and reference material for performing modeling tasks in HEC-RAS.
HEC-RAS 2D User's Manual - United States Army
Foreword. Introduction. Current Limitations of the 2D modeling Capabilities. Developing a Terrain Model and Geospatial Layers. Using Cross Section Data to Modify/Improve the Terrain Model. Creating Land Cover, Manning’s n values, and % Impervious Layers. Development of a 2D or Combined 1D/2D Model.
Hydrologic Engineering Center
The Hydrologic Engineering Center's (HEC) River Analysis System (HEC-RAS) software allows you to perform one-dimensional steady and 1D and 2D unsteady flow river hydraulics calculations. HEC-RAS is an integrated system of software, designed for interactive use in a multi-tasking, multi-user network environment.