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Long-Term Bridge Performance

  • A screenshot of the LTBP InfoBridge program

    LTBP Bridge Portal

    The Federal Highway Administration (FHWA) Long-Term Bridge Performance (LTBP) program’s web portal, LTBP InfoBridge™, is a centralized gateway to bridge performance data and information. The portal provides an efficient interface with visualization capabilities enabling users to perform bridge data analytics.
  • The cover of the Long-Term Bridge Performance Protocols report

    LTBP Program Protocols

    The LTBP Program Protocols provide a set of step-by-step instructions governing all aspects of data collection, including visual inspection, material testing, NDE testing, live load testing, instrumentation, logistics, safety, data reduction and processing, data interpretation, reporting results, data storage, archiving, and importing into the LTBP Bridge Portal.
  • This map lists the State coordinators for the LTBP Program.

    State LTBP Coordinators

    The LTBP Program State Coordinator is a bridge engineer selected by their transportation department to be their representative and support the LTBP Program. In total, the LTBP Program has 52 State Coordinators, one for each State transportation department, including the Commonwealth of Puerto Rico and the District of Columbia

Status of LTBP Program

The LTBP Program is a long-term research effort, authorized by the U.S. Congress under the Safe, Accountable, Flexible, Efficient Transportation Equity Act: A Legacy for Users (SAFETEA-LU) to collect high-quality bridge data from a representative sample of highway bridges nationwide that will help the bridge community to better understand bridge performance. This site contains information about the program including a discussion of the program objectives and bridge selection methodology (About), LTBP ProductsLTBP CommunityNondestructive Evaluation and Structural Health Monitoring as it relates to the Program, and an update on Pooled Fund Project TPF-5(283): The Influence of Vehicular Live Loads on Bridge Performance, and a listing of current LTBP Program Publications.

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