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Media Advisory 07-026

Bridges on the Brink?

Panel to discuss what we know and what we need to know about structurally deficient U.S. bridges

Artists rendition showing interior of a bridge similar in structure to the I35-W bridge.

Artists rendition showing interior of a bridge similar in structure to the I35-W bridge.
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September 12, 2007

The tragedy of the I-35W bridge collapse in Minneapolis alerted many to the urgent need to better monitor and maintain thousands of bridges across the United States. For decades, engineers have been studying these bridges and calculating their risk of failure, yet many proposed solutions have not been adopted.

NSF's Directorate for Engineering and the Office of Legislative and Public Affairs invite you to attend a presentation to learn what engineers know about our at-risk bridges; what they are hoping to learn from the I-35W collapse; and how cutting-edge technologies, some already in the testing stages, may provide answers for how to monitor and maintain the long list of bridges deemed structurally deficient.

Presentations Include:

"Bridge Lifecycles, Cradle to Grave"
Richard Sause, Lehigh Univ.

"Learning from I-35W, An Early Look"
Taichiro Okazaki, Univ. of Minnesota

"Bridging New Applications"
Antonio Nanni, Univ. of Miami

When: Wed., Sept. 19, 2007, 2 p.m. - 3 p.m

Where: National Science Foundation
4201 Wilson Blvd., Room 110
Arlington, VA 22230 (Ballston Metro stop)
Enter at corner of 9th & Stuart Streets

The event is open to the public. Registration is requested to ensure that sufficient space is available. Please contact Josh Chamot at or (703) 292-7730.


Media Contacts
Joshua A. Chamot, NSF, (703) 292-7730,

Related Websites
The conclusions from the University of Minnesota's independent study of the I-35W bridge collapse:

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Photo of Michael M. Reischman, Deputy Ass't. Director, NSF Engineering Directorate, at the podium
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NSF hosts a presentation on what engineers know about at-risk bridges.
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