Risk-Based Management Guidelines for Scour at Bridges with Unknown Foundations
The US currently has over 60,000 bridges over water with unknown foundations. This report presents a risk-based approach to managing these bridges in the absence of foundation information. The general framework in this report, which is primarily applied to scour failure, can easily be applied to other hazards such as earthquakes and tsunamis. The guidelines illustrate how to collect appropriate data, estimate risk of failure from an estimated failure probability and associated economic losses, and use risk in a structured approach to select an appropriate management plan. Risk analysis is specifically used to select appropriate performance standards for various bridge classifications and justify the costs of nondestructive testing of foundations, monitoring activities, and countermeasures. The scour guidelines were applied to sixty case studies in the US to validate the management plan that was selected for bridges with known foundations, and to illustrate the specific application of the guidelines in a variety of settings.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/isbn/9780309436779
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Authors:
- Stein, Stuart
- Sedmera, Karsten
- Publication Date: 2007
Language
- English
Media Info
- Media Type: Web
- Edition: Contractor Final Report
- Features: Appendices; Figures; References; Tables;
- Pagination: 458p
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Serial:
- NCHRP Web-Only Document
- Issue Number: 107
- Publisher: Transportation Research Board
Subject/Index Terms
- TRT Terms: Bridge management systems; Case studies; Data collection; Economics; Estimating; Guidelines; Risk assessment; Scour
- Uncontrolled Terms: Failure probability
- Geographic Terms: United States
- Subject Areas: Bridges and other structures; Design; Economics; Highways; Safety and Human Factors; I24: Design of Bridges and Retaining Walls;
Filing Info
- Accession Number: 01056183
- Record Type: Publication
- ISBN: 9780309436779
- Report/Paper Numbers: NCHRP Project 24-25
- Files: TRIS, TRB
- Created Date: Sep 5 2007 4:25PM