Assessing bridge vulnerability and risk due to stream instability

Peggy Ann Johnson, R. M. Whittington

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The FHWA recommends that stream stability analyses begin with a Level 1 assessment. Following data collection and observations at the bridge, the user must determine whether the relative risk is low or not. If it is low, then no action is needed. If the risk is greater than low, then a Level 2 analysis is recommended. In this paper, the relative risk of failure due to stream channel instability at a bridge is assessed as a simple function of vulnerability and criticality. Vulnerability is based on a stream stability assessment and the National Bridge Inventory (NBI) ratings for channel condition for a particular bridge. Criticality is determined indirectly as a function of the bridge importance, using data extracted from the NBI. Relative risk is then qualitatively determined by combining vulnerability and criticality. An example is provided in which the relative level of risk is used to determine the need for a Level 2 analysis.

Original languageEnglish (US)
Title of host publicationScour and Erosion
Pages1008-1012
Number of pages5
Edition210 GSP
DOIs
StatePublished - 2010
Event5th International Conference on Scour and Erosion - San Francisco, CA, United States
Duration: Nov 7 2010Nov 10 2010

Other

Other5th International Conference on Scour and Erosion
CountryUnited States
CitySan Francisco, CA
Period11/7/1011/10/10

Fingerprint

vulnerability
stream channel
analysis

All Science Journal Classification (ASJC) codes

  • Geotechnical Engineering and Engineering Geology
  • Civil and Structural Engineering
  • Building and Construction
  • Architecture

Cite this

Johnson, P. A., & Whittington, R. M. (2010). Assessing bridge vulnerability and risk due to stream instability. In Scour and Erosion (210 GSP ed., pp. 1008-1012) https://doi.org/10.1061/41147(392)101
Johnson, Peggy Ann ; Whittington, R. M. / Assessing bridge vulnerability and risk due to stream instability. Scour and Erosion. 210 GSP. ed. 2010. pp. 1008-1012
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Johnson, PA & Whittington, RM 2010, Assessing bridge vulnerability and risk due to stream instability. in Scour and Erosion. 210 GSP edn, pp. 1008-1012, 5th International Conference on Scour and Erosion, San Francisco, CA, United States, 11/7/10. https://doi.org/10.1061/41147(392)101

Assessing bridge vulnerability and risk due to stream instability. / Johnson, Peggy Ann; Whittington, R. M.

Scour and Erosion. 210 GSP. ed. 2010. p. 1008-1012.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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