Risk Analysis on Bridge Scour Failure

Bridge scour is the soil erosion caused by water flowing around bridge supports. Research has shown that scour has been the number one cause of bridge failure in the United States with an average annual rate of 22 bridges collapsing or being closed due to severe deformation. In this paper, the authors aimed to quantify the bridge scour risk in order to help people understand how risky the bridge scour is. The widely accepted definition of risk was adopted in the paper, the probability of failure times the value of the consequence. First, the New York State Department of Transportation (NYSDOT) Bridge Failure database and Florida Department of Transportation (FDOT) Unknown Foundation Bridges Database were used to quantify the bridge scour risk. Second, several other societal risks, including cancer, car accidents, and plane crashes, were analyzed to be comparable to bridge scour risk. Finally, the authors proposed the acceptable risk level, medium risk level, and unacceptable risk level in the United States based on the analyses in the paper. The outcome of this paper will aid people or authorities in understanding the risk of bridge failure as well as other society risks.

• Record URL:
  • https://doi.org/10.1061/9780784479087.177
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/9780784479087
• Supplemental Notes:
  • © 2015 American Society of Civil Engineers.
• Corporate Authors:

  American Society of Civil Engineers

  1801 Alexander Bell Drive
  Reston, VA  United States  20191-4400
• Authors:
  • Yao, Congpu
  • Briaud, Jean-Louis
  • Gardoni, Paolo
• Conference:
  • IFCEE 2015
  • Location: San Antonio Texas, United States
  • Date: 2015-3-17 to 2015-3-21
• Publication Date: 2015-3

Language

• English

Media Info

• Media Type: Web
• Features: References;
• Pagination: pp 1936-1945
• Monograph Title: IFCEE 2015

Subject/Index Terms

• TRT Terms: Bridges; Collapse; Deformation; Erosion; Failure; Risk analysis; Scour
• Geographic Terms: United States
• Subject Areas: Bridges and other structures; Highways; Planning and Forecasting; I10: Economics and Administration; I72: Traffic and Transport Planning;

Filing Info

• Accession Number: 01558713
• Record Type: Publication
• ISBN: 9780784479087
• Files: TRIS, ASCE
• Created Date: Mar 31 2015 9:06AM