Welcome to HEC-RAS.

Base Level Engineering is a watershed-wide engineering modeling method that leverages high resolution ground elevation, automated model building techniques, and manual model review to …

Mar 5, 2025 · Future versions of HEC-RAS will allow for various mesh resolutions to be defined within a single 2D flow area and ability to have multiple n values assigned to a cell face.

This intensive, workshop-oriented, two-day course will prepare the engineer and water resource professional to use the HEC-RAS computer program for modeling two-dimensional (2D) unsteady …

This software allows the user to perform one-dimensional steady flow, one and two-dimensional unsteady flow computations, sediment transport/mobile bed computations, stormwater pipe network...

This is an interactive seminar focused on the practical use and advantages of two-dimensional flow capabilities in HEC-RAS, with emphasis on applications for the dam safety industry.

The HEC-RAS team taught the 2D modeling class online. This was a modified version of our standard class, but it was online, so we recorded it. We will post p...

Dec 19, 2024 · Learn how to use Hec-Ras 2D for hydraulic risk modeling, hydraulic efficiency, flow rating curve construction, and PAI compliance.

Two-dimensional (2D) watershed modeling approaches in HEC-RAS are being used increasingly across the nation to provide economical estimates of flood hazards.

To develop a 2D flow area model, an understanding of how the 2D flow model works is required. This article covers the basics of HEC-RAS 2D flow modeling.