Economic Feasibility and Increased Sustainability of Short Span Arch Culverts

Currently, standard box-section concrete culverts are the main type of structure used for large span culverts (span 15 to 30 feet). Their construction methods may require stream mitigation and their square/rectangular cross section area negatively impacts the stream flow which can result in partial clogging due to debris accumulation, preventing the passage of aquatic organisms. This research studies the possibility of using short span arch culverts in replacement of box-culverts based on life cycle cost analysis. Short span arches are available in different geometrical shapes (span to depth ratios) which match different topographies and minimize the required earth work. The capability of arch-shaped structure to transfer internal forces through compression, and not flexure, improves the structural efficiency of the culvert. Finally, the bottomless arch shape results in much lower obstructions to any stream flow. This results in minimal accumulation of sediment and debris, which minimizes maintenance cost for the structure during its life span and also maintains the unrestricted movement of aquatic organisms.

    Language

    • English

    Project

    • Status: Active
    • Funding: $179461.00
    • Contract Numbers:

      TRC-1402

    • Sponsor Organizations:

      Arkansas State Highway and Transportation Department

      System Information and Research Division, P.O. Box 2261
      Little Rock, AR  United States  72203
    • Project Managers:

      McKenney, Christopher

    • Performing Organizations:

      University of Arkansas, Little Rock

      33rd and University Street
      Little Rock, AR  United States  72204
    • Principal Investigators:

      Akhnoukh, Amin

    • Start Date: 20130701
    • Expected Completion Date: 0
    • Actual Completion Date: 20150630
    • Source Data: RiP Project 37423

    Subject/Index Terms

    Filing Info

    • Accession Number: 01542983
    • Record Type: Research project
    • Source Agency: Arkansas State Highway and Transportation Department
    • Contract Numbers: TRC-1402
    • Files: RiP
    • Created Date: Nov 1 2014 1:41AM