NTL-HIGHWAY/ROAD TRANSPORTATION-Bridges and Structures
Abstract:
The U.S. has 542,000 bridges that consume billions of dollars per year in construction, rehabilitation and maintenance funds and which are the lifelines of U.S. commerce. The 1992 ISTEA (Intermodal Surface Transportation Efficiency Act) mandates the implementation of a quantitative computerized bridge management system by 1996. A prime need of such a system are quantitative bridge inspection methods to feed accurate reliable condition information to the huge database of bridges. Nondestructive evaluation (NDE) will fill a critical need in the implementation of effective bridge management. However, many serious barriers exist to the widespread routine application of this technology to bridges. This paper provides an overview of the typical problems associated with applying NDE to bridges.
This project focused on implementing the 3DOBS technology (developed under Phase I and Phase II) for successful detection, quantification, and visuali...
Concrete bridge decks are routinely inspected as a requirement of the National Bridge Inspection Standards. This is typically a visual inspection, wit...
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United States Department of Transportation
[PDF-1.89 MB]
