Time Scale for Contraction Scour at Bridges

Several methods exist for predicting rates of pier and abutment scour. Contraction scour equations are developed using sediment transport equations for live-bed conditions and initiation of motion concepts for clear-water conditions. This paper extends these concepts to predict the rate of contraction scour primarily at tidal bridges under storm surge conditions. The method is incorporated into a spreadsheet and can be used for either clear-water or live-bed conditions. The ultimate scour predicted with this approach compares very well with the standard contraction scour equations and, depending on the amount of upstream sediment supply, can occur within a few hours to several months.

• Record URL:
  • https://doi.org/10.1061/40517(2000)405
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/9780784405178
• Supplemental Notes:
  • © 2000 American Society of Civil Engineers.
• Corporate Authors:

  American Society of Civil Engineers

  1801 Alexander Bell Drive
  Reston, VA  United States  20191-4400
• Authors:
  • Zevenbergen, Lyle W
• Conference:
  • Joint Conference on Water Resource Engineering and Water Resources Planning and Management 2000
  • Location: Minneapolis Minnesota, United States
  • Date: 2000-7-30 to 2000-8-2
• Publication Date: 2000

Language

• English

Media Info

• Media Type: Web
• Pagination: pp 1-6
• Monograph Title: Building Partnerships

Subject/Index Terms

• TRT Terms: Bridge abutments; Bridge piers; Scour; Storm surges; Thermal contraction; Tidal currents
• Subject Areas: Administration and Management; Bridges and other structures; Highways;

Filing Info

• Accession Number: 01907721
• Record Type: Publication
• ISBN: 9780784405178
• Files: TRIS, ASCE
• Created Date: Feb 9 2024 4:35PM