Hydraulic Design Series Number 5 combines culvert design information previously contained in Hydraulic Engineering Circulars (HECs) No. 5, No. 10, and No. 13 with hydrologic, storage routing, and special culvert design information. The result is a comprehensive culvert design publication. Hydrologic analysis methods are described, and references cited. Culvert design methods are presented for both conventional culverts and culverts with inlet improvements. Storage routing techniques are included which permit the designer to account for ponding effects upstream of the culvert. Unique culvert applications, erosion and sediment control, debris control, structural aspects, and long-span culverts are discussed and references cited. Inlet control, outlet control, and critical depth design charts, many of which are newly developed, are included for a variety of culvert sizes, shapes, and materials. New dimensionless culvert design charts are provided for the design of culverts lacking conventional design nomographs and charts. The appendices of the publication contain the equations and methodology used to construct the design charts, information of the hydraulic resistance of culverts, and methods of optimizing culvert design using performance curves and inlet depression. Calculation forms are provided for most of the design methodologies in the manual. The second edition has corrected minor errors and provided both SI and English (U.S. customary) units for all equations and design charts.

  • Corporate Authors:

    Ayres Associates, Incorporated

    3665 JFK Parkway, Building 2, Suite 200
    Fort Collins, CO  United States  80525

    Federal Highway Administration

    Office of Engineering, Bridge Division, 1200 New Jersey Avenue, SE
    Washington, DC  United States  20590

    National Highway Institute

    Federal Highway Administration
    1310 North Courthouse Road, Suite 300
    Arlington, VA  United States  22201
  • Authors:
    • Normann, J M
    • Houghtalen, R J
    • Johnston, W J
  • Publication Date: 2001-9


  • English

Media Info

  • Features: Appendices; Figures; References; Tables;
  • Pagination: 367 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00974298
  • Record Type: Publication
  • Report/Paper Numbers: FHWA-NHI-01-020
  • Contract Numbers: DTFH61-97-D-00025
  • Files: TRIS, USDOT
  • Created Date: May 28 2004 12:00AM