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HY-8 Culvert Hydraulic Analysis Program Version 7.70 [supporting software]

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English


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  • Corporate Creators:
    United States. Federal Highway Administration. Office of Bridges and Structures
  • Contributors:
    Lizewski, Ryan
  • Subject/TRT Terms:
  • Resource Type:
    Software
  • Right Statement:
    Public Domain
  • Geographical Coverage:
    United States
  • Corporate Publisher:
    United States. Federal Highway Administration. Office of Bridges and Structures
  • Abstract:
    HY-8 automates culvert hydraulic computations utilizing a number of essential features that make culvert analysis and design easier. An HY-8 User Manual is included with the software installation (access via 'Help' button on top toolbar) to provide important information on the technical features, capabilities, and limitations of the software.

    Improvements made to this version of the software include the following: Added a secondary versioning number. Updated the Quick Start Guide. Upgraded the interface for high pixel density displays and updated interface icons. Upgraded to a new library to export data to the report generator with Microsoft Word format (DOCX). Added an option to set default unit system, outlet control, and exit loss. Added irregular roadway plot minimum and maximum crest elevations in the side view. Increased the number of irregular roadway plot points from 15 to 5000. Added Manning’s n value and plot of critical depth in the tailwater channel. Added feedback to the user when irregular tailwater channel is insufficient for the specified flow. Improved HY-8 tailwater computations to better handle surcharge situations. Added culvert size on the results page. Added Ke value of the inlet edge types and the culvert barrel slope in the Edit Crossing window. Added max shear stress to the AOP table. Provided testing information to the user in the HY-8 User’s manual.

  • Content Notes:
    By downloading the software, users acknowledge that they have read and agree to the following conditions: The application of this software is the responsibility of the user. It is imperative that the responsible designer 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. I agree to these conditions when downloading the software.

    National Transportation Library (NTL) Curation Note: This dataset has been curated to CoreTrustSeal's curation level "A. Active Preservation". To find out more information on CoreTrustSeal's curation levels, please consult their "Curation & Preservation Levels" CoreTrustSeal Discussion Paper" (https://doi.org/10.5281/zenodo.11476980). NTL staff last accessed this dataset at its repository URL on 2026-01-15. If, in the future, you have trouble accessing this dataset, please submit your question at https://transportation.libanswers.com. NTL staff will do its best to assist you at that time.

  • Format:
    ZIP
  • Collection(s):
  • Main Document Checksum:
    urn:sha-512:956286b18fc3b428acb37ef65d11af8fd9acac88542f6640af191b5232c324740ebf635efba13e1d8c7a532b6b30f412104eadbba2cd56e92de089caf51c8d06
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  • File Type:
    Filetype[ZIP - 148.11 MB ]
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