HEC-RAS

HEC-RAS 7.0

The Hydrologic Engineering Center's River Analysis System (or simply HEC-RAS) is river water modeling software.

  • By Hydrologic Engineering Center
  • Proprietary
  • Updated Apr 17, 2026
Download for Windows

About HEC-RAS

The Hydrologic Engineering Center's River Analysis System (or simply HEC-RAS) is for modeling water flowing through systems of rivers and open channels.
It allows the user to perform one-dimensional steady flow, one and two-dimensional unsteady flow calculations, sediment transport/mobile bed computations, and water temperature/water quality modeling.

What's new in 7.0

Version 7.0 includes all the enhancements and bug fixes that have been released in the previous 6.7 Beta versions.

  • A list of major new capabilities can be found on the New Features page. [https://www.hec.usace.army.mil/confluence/rasdocs/rasrn/7.0/new-features]
  • A list of major and minor the bugs can be found on the Resolved Issues page. [https://www.hec.usace.army.mil/confluence/rasdocs/rasrn/7.0/resolved-issues]

Full release notes »

Technical details

PublisherHydrologic Engineering Center
Version7.0
Release date2026-04-17
LicenseProprietary
Installer typeexe
Architecturex86
Package IDHydrologicEngineeringCenter.HEC-RAS

Links & install command

Install HEC-RAS from the command line with Windows Package Manager (winget):

winget install --id=HydrologicEngineeringCenter.HEC-RAS -e

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Older versions

  • 6.6
  • 6.4.1
  • 6.3.1
  • 6.2.0.0
  • 6.1.0.0