Windows · Free download · Science and Engineering

HEC-RAS5.0.6

HEC-RAS : Comprehensive software designed to help you perform one-dimensional hydraulic calculations for natural or constructed channels with the aid of graphs and reports, data storage and management options, RAS Mapper, as well as hydraul

Operating system
Windows 10/11
File size
660 MB
License
Freeware
Last updated
Apr 30, 2026

330 downloads·1157 page views

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Overview

What is HEC-RAS?

HEC-RAS : Comprehensive software designed to help you perform one-dimensional hydraulic calculations for natural or constructed channels with the aid of graphs and reports, data storage and management options, RAS Mapper, as well as hydraul

In depth

A closer look at HEC-RAS

HEC-RAS is a professional Windows application whose purpose is to help engineers perform detailed water flow and sedimentary computations.It offers support for multiple analysis parameters, namely steady flow water surface profile computations, unsteady flow simulation, movable boundary sediment transport computations, and water quality.Hydraulic engineers may take advantage of channel flow analysis and floodplain determination. This one-dimension utility is able to model water flowing through systems of open channels and compute water surface profiles.

User interface

The tool comes packed with a bunch of dedicated parameters, so you need to take some time and experiment with the built-in features. There’s also support for a comprehensive help manual in case you want to find out more about the program’s capabilities, as well as tooltips.From the user interface you can activate the following functions: file management, data entry and editing operations, hydraulic analyses, tabulation and graphical displays of input and output data, and reports.

Main features

The program gives you the possibility to create multiple projects, store the input data in flow files under separate categories (project, plan, geometry, steady flow, unsteady flow, and sediment data), create graphs which embed X-Y plots of the river system schematic, cross-sections, profiles, rating curves, hydrographs, and many other hydraulic variables, as well as generate a three-dimension plot of multiple cross-sections. Graphs can be printed or copied to the clipboard.The RAS Mapper gives you the possibility to perform inundation mapping of water surface profile results directly from HEC-RAS. The utility is able to generate inundation depth and floodplain boundary datasets based on the HEC-RAS geometry and computed water surface profiles. The depth grip can be exported to FLT file format while dataset can be saved to ESRI's shapefile format.

An overall efficient program

All in all, HEC-RAS comes packed with a decent suite of features for helping you perform one-dimensional hydraulic calculations for natural or constructed channels. It provides support for graphs and reports, data storage and management options, RAS Mapper, as well as hydraulic analysis.

Requirements

System requirements

Windows 10 64 bit / Windows 10 / Windows 8 64 bit / Windows 8 / Windows 7 64 bit / Windows 7 / Windows Vista 64 bit / Windows Vista / Windows XP 64 bit / Windows XP

Verdict

Should you download HEC-RAS?

HEC-RAS runs on Windows 10/11 and is available under the Freeware license — the installer is 660 MB. We’ve catalogued it under Science and Engineering.

Verified clean. Every HEC-RAS build on SoftLookup is scanned for viruses, spyware, adware, trojans and backdoors. We re-test on every update.
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At a glance

HEC-RAS specifications

Publisher
Hydrologic Engineering Center (HEC)
Last updated
Apr 30, 2026
Requirements
Windows 10 64 bit / Windows 10 / Windows 8 64 bit / Windows 8 / Windows 7 64 bit / Windows 7 / Windows Vista 64 bit / Windows Vista / Windows XP 64 bit / Windows XP
License
Freeware
Operating system
Windows 10/11
File size
660 MB
Price
Free
Page views
1157

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