HY-8 Culvert Analysis Program - Phase Three of Development Efforts

The HY-8 is a computerized implementation of the Federal Highway Administration (FHWA) culvert hydraulic approaches and protocols. The FHWA publication "Hydraulic Design Series 5: Hydraulic Design of Highway Culverts" (HDS-5) [publication FHWA-NHI-01-020, May 2005 revision] documents the technical methods applied in the HY-8 program and should be considered the primary technical reference for the software. In 2005, the FHWA contracted with the Brigham Young University to develop a 32-bit (and 64-bit) Windows compatible version of HY-8. This version provided graphical user interface (GUI) for the same hydraulic calculations performed in DOS versions of HY-8. FHWA intended to plan and fund this development effort using a series of planned phases. The first phase resulted in an initial release (version 7.0) that performed basic culvert hydraulics. The second phase (version 7.1) incorporated energy dissipater module; performed hydraulic analyses of embedded culverts; allowed use of modified outlet loss coefficients; incorporates dynamic culvert shape database with new materials; and implemented various improvements, technical updates, and bug corrections. The objective of this research effort is to continue the phased development of HY-8. The effort would be funded by FHWA and other State departments of transportation (DOTs) contributors (PFP members). The anticipated scope of work consists of continued development efforts on the HY-8 software (beginning with phase three of the on-going development effort).


  • English


  • Status: Completed
  • Funding: $160000
  • Contract Numbers:


  • Sponsor Organizations:

    Iowa Department of Transportation

    800 Lincoln Way
    Ames, IA  United States  50010

    Minnesota Department of Transportation

    Transportation Building
    395 John Ireland Boulevard
    St Paul, MN  United States  55155

    Nebraska Department of Transportation

    1500 Highway 2
    P.O. Box 94759
    Lincoln, NE  United States  68509-4759

    Ohio Department of Transportation

    Research Program
    1980 West Broad Street
    Columbus, OH  United States  43223

    South Dakota Department of Transportation

    700 East Broadway Avenue
    Pierre, SD  United States  57501

    Texas Department of Transportation

    125 E. 11th Street
    Austin, TX  United States  78701-2483

    Wisconsin Department of Transportation

    PO Box 7910
    4802 Sheboygan Avenue, Room 104
    Madison, WI  United States  53707-7910

    Alabama Department of Transportation

    1409 Coliseum Blvd.
    Montgomery, AL  United States  36130
  • Project Managers:

    Beucler, Brian

  • Start Date: 20100301
  • Expected Completion Date: 0
  • Actual Completion Date: 20180316
  • Source Data: RiP Project 42242

Subject/Index Terms

Filing Info

  • Accession Number: 01560757
  • Record Type: Research project
  • Source Agency: Federal Highway Administration
  • Contract Numbers: TPF-5(202)
  • Created Date: Apr 22 2015 1:03AM