01151034

Component

Over the past several years there has been increased interest in adding a systematic consideration of risk in transportation asset management. The tragic August 1, 2007 collapse of the I-35W bridge in Minneapolis, Minnesota served to further increase the interest in the highway bridge arena specifically. In addition, there is broad recognition that the measures used to monitor the health of highway bridges and the performance of the federal bridge program could be improved. It is also expected that reauthorization of the U.S. surface transportation legislation will be will emphasize critical asset preservation, and identify measures and set targets by which the program performance will be judged moving forward. This paper describes the development and application of a highway bridge risk model to 472,350 U.S. highway bridges, presents summary results, and explores potential applications of the model for state and federal transportation agencies. The model incorporates concepts from reliability theory and risk-based asset management, as well as utilizing existing data and well established and nationally recognized bridge deterioration models. The model offers a unique insight into U.S. highway bridge risk and proposes new performance measures which could be utilized by transportation agencies to help manage their bridge programs more effectively by providing a systematic risk-based perspective to investment decision making.

01147878

10-3324

English

14p

2010

Transportation Research Board 89th Annual Meeting

DVD

Figures (7) ; References (5)

Asset management; Decision making; Highway bridges; Performance measurement; Risk assessment; State departments of transportation

Minneapolis Bridge Collapse, 2007

Bridge maintenance

Bridges and other structures; Highways; Maintenance and Preservation; I24: Design of Bridges and Retaining Walls

Transportation Research Board Annual Meeting 2010 Paper #10-3324

TRIS, TRB

Jan 25 2010 11:39AM