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HY-8 Culvert Hydraulic Analysis Program Version 7.50 [supporting software]

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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.

    Build Date July 28, 2016. This version contains two new calculators: a) a calculator to assist with the FHWA's culvert aquatic organism passage (AOP) design procedure, which is described in detail within Hydraulic Engineering Circular 26, "Culvert Design for Aquatic Organism Passage, First Edition" (HEC-26), and b) a calculator to determine the variation in cross-sectional flow velocity from the culvert wall to the centerline, which is described within Research Publication No. FHWA-HRT-14-064, "Fish Passage in Large Culverts with Low Flows". Improvements made to this version of the software include: corrections to the AOP calculator, a correction to the calculation of roadway overtopping for various scenarios, a correction to the calculation of composite Manning's n values for user defined shapes, edits to the Saint Anthony Falls (SAF) Energy Dissipator routine, and edits to the Riprap Basin Dissipator routine.

    Download HY-8 Version 7.50 (.zip, 87 mb)

  • 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-512:8e0f3db8666047119b3ddd201de0c49ab631758a0c638c8e752382608eab5efd29aa875d7b2fcbbf92b0c9594eac5f38f9d2083a0c5c61e4d480217b8a84e55b
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  • File Type:
    Filetype[ZIP - 81.01 MB ]
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