Skip to contentUnited States Department of Transportation - Federal Highway AdministrationFHWA HomeFeedback

Hydraulics Engineering


Hydraulics Engineering - Archived Software Descriptions

Current Software

Some of the software listed below is available for downloading at this site as zipped files or self extracting zip files. This software may be copied and used without restriction.

By downloading the software, the user accepts responsibility for understanding the following conditions and limitations, and agrees to them:

  • The FHWA does not provide user assistance or support for this software.
  • The application of this software is the responsibility of the user. It is imperative that the responsible engineer understands the potential accuracy limitations of the program results, independently cross checks those results with other methods, and examines the reasonableness of the results with engineering knowledge and experience.
  • There are no expressed or implied warranties.

In addition, all the software and related publications listed below are available for purchase from McTrans or PC-TRANS.

HY8 Culvert Analysis version 7.1 (Archived)

  • Distribution Memo 07/01/08
  • The Quick Start guide is intended to provide essential information for installing and running the Windows based version 7.1 of the HY-8 culvert hydraulic analysis and design program.


The BRI-STARS (BRIdge Stream Tube model for Alluvial River Simulation) model is a generalized semi-two-dimensional water and sediment-routing computer model that includes an integrated graphical interface. The model can be used to solve complicated river engineering problems with limited data and resources and is capable of computing alluvial scour/deposition for subcritical, supercritical, or a combination of water surface profiles that pass through critical depth.

Unlike conventional water and sediment routing models, it is also capable of simulating the channel widening/narrowing phenomenon as well as local scour due to highway encroachments. It contains a subset of Federal Highway Administration's WSPRO subroutines for computing bridge hydraulics. The BRI-STARS software and associated manuals will be of particular interest to hydraulic engineers, bridge engineers, and fluvial geomorphologist involved with bridge scour evaluations, and modeling of general scour in alluvial streams in the vicinity of bridge crossings and highway encroachments. BRI-STARS is particularly useful for evaluating sites where contraction scour and/or effects of in-stream mining activities are a concern.

The BRI-STARS Software is available as an installable executable. The installation includes the program, sample data files, and utility programs.

Download the software and/or manual: I agree to the downloading conditions above.

PDF files can be viewed with the Acrobat® Reader®
Updated: 01/08/2013

United States Department of Transportation - Federal Highway Administration