Understanding the Interaction Between Total Scour Components

Scour has a major effect on the design, construction, and maintenance costs of bridges. Improving the understanding of the interaction between pier, contraction, and abutment scour is key to safe and cost-effective design of foundations. The interaction between pier, contraction, and abutment scour; its effects on bed shear stresses; and the resulting depth and extent of their collective impact is a topic with limited study. The current practice is to estimate the scour components separately and compute the total scour as the sum of the individual components. This practice can lead to the overestimation of scour potential, thereby causing an increase in design, construction, and maintenance costs. Research is needed to assist state departments of transportation (DOTs) in understanding the interaction between scour types and which scour types control overbank and channel scour potential. This research would include the study of total scour from a system perspective and the development of scour profile guidance. The objective of this research is to develop procedures for determining the interaction of pier, contraction, and abutment scour components and their contributions to the total scour potential. The procedures must be rational, properly structured, well documented, comprehensive, logical, and practical for use by state DOT engineers and other practitioners.


  • English


  • Status: Proposed
  • Funding: $800000
  • Contract Numbers:

    Project 10-132

  • Sponsor Organizations:

    National Cooperative Highway Research Program

    Transportation Research Board
    500 Fifth Street, NW
    Washington, DC  United States  20001

    American Association of State Highway and Transportation Officials (AASHTO)

    444 North Capitol Street, NW
    Washington, DC  United States  20001

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Project Managers:

    Abu-Hawash, Ahmad

  • Start Date: 20240226
  • Expected Completion Date: 0
  • Actual Completion Date: 0

Subject/Index Terms

Filing Info

  • Accession Number: 01898355
  • Record Type: Research project
  • Source Agency: Transportation Research Board
  • Contract Numbers: Project 10-132
  • Files: TRB, RIP
  • Created Date: Nov 7 2023 11:51AM