HEC-RAS (Hydrological Engineering Centre – River Analysis System)

HEC-RAS is a software that models the hydraulics of water flow through natural rivers and other channels.

United States Army Corps of Engineers.

HEC-RAS is a computer program for modeling water flowing through systems of open channels and computing water surface profiles. HEC-RAS finds particular commercial application in floodplain management and [flood insurance] studies to evaluate floodway encroachments. Some of the additional uses are: bridge and culvert design and analysis, levee studies, and channel modification studies. It can be used for dam breach analysis, though other modeling methods are presently more widely accepted for this purpose. In summary it is used in study of:

  • Steady flow models
  • Unsteady flow models
  • Sediment transport models
  • Water quality anaylsis
  1. Can perform 1D, 2D, and combined 1D and 2D modeling.
  2. Detailed Flood Mapping and Flood Animations.
  3. Shallow Water Equations (SWE) or Diffusion Wave Equations (DWE) in 2D
  4. Unstructured or Structured Computational Meshes
CESS Recommendation for Undergrads: 

Students interested in water resource engineering may explore this software after completing their Hydraulics course [CE555] in 4th sem.

HEC-RAS User's Manual

CESS Chat Service 
Only logged in users are allowed to enter the chat
It can be downloaded from the official website through the downloads section.
Cracked Dowload link:  (we do not host those files they are just link to files from others servers)

Download Links are only available for Registered // logged in users. (Register first)

Installation Video 
Play Video
System Requirements: 
  • An Intel I5 or higher is recommended. If you are going to perform 2D modeling, then a machine with multiple cores is recommended).
  • At least 1 GB of free space (10 GB is recommended)
  • A minimum of 8 GB of RAM if using Windows 7, Windows 8, or windows 10
  • Color Video Display (Recommend running in Super VGA (1024x768) or higher.

HEC-RAS Version 5.0.4 and newer will only run on 64-bit Windows operating systems, including 64-bit versions of Windows 7, 8.0, 8.1, and 10

One comment


Thank you, what are your thought about other products like: AutoCAD, Microstation, CivilGEO etc.? I’ve heard they are easy to use when compared to USACE HEC-RAS

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This version is going to be used in training

All zips are password protected

password for zip: 15thcess-committee

Contact ‘Oscar’ for any queries related to software.


This version is going to be used in training

All zips are password protected

password for zip: 15th-cess-committee

Contact ‘Oscar’ for any queries related to software.


The zip files you download are Password Protected

password: 15th-cess-committee                            or cess-15th-committee