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LTBP Research


Project Research Approach

The research team will conduct the work in two phases to achieve the objectives of the Long-Term Bridge Performance (LTBP) Program. These phases are:

(1)  The Developmental phase.
(2)  The Long-Term Data Collection phase.


Developmental Phase

Pilot Study

Draft Pilot Study Plan

The purpose of the Pilot Study was to validate protocols for assessment, data collection, and management; to develop partnerships and coordination with the State DOTs more fully; and to ensure that all of the components needed to achieve the long-term objectives of the LTBP Program were considered before embarking on the Long-Term Data Collection phase of the Program.

Pilot Study Execution

The Pilot Study used draft protocols to gather data on seven different types of bridges in Florida, New Jersey, Virginia, California, Utah, Minnesota, and New York. The Pilot Study provided many useful comments that are currently being used to update the protocols.

Completion of this Pilot Study has resulted in the LTBP Program having a better understanding of each component of the Long-Term Data Collection phase of the Program.


Long-Term Data Collection Phase

LTBP Program Data Collection - Ongoing

As the Pilot Study has been completed , the contractor has commenced collecting data in two clusters in the Mid-Atlantic States. Data collection in these clusters began in March 2013. More information can be found here and here.



RABIT™ Bridge Deck Assessment Tool

The Federal Highway Administration (FHWA), in conjunction with Rutgers University’s Center for Advanced Infrastructure and Transportation (CAIT), developed a multifunctional nondestructive evaluation (NDE) platform to enhance condition assessment of concrete bridge decks. The RABIT™ Bridge Deck Assessment Tool was developed to deploy a suite of NDE technologies simultaneously.


Want More Information?

Send an email to ltbp@dot.gov.

LTBP: Research

Office of Infrastructure R&D Links

» Office of Infrastructure R&D
» Infrastructure R&D Program
»Long-Term Bridge
  Performance Program

»Long-Term Pavement
  Performance Program
» Infrastructure R&D Experts
» Infrastructure R&D Laboratories
» Infrastructure R&D Projects
» Infrastructure R&D Publications
» Infrastructure R&D Topics



» FHWA Launches Flagship Initiative to Collect Nationwide Data on Highway Bridges
» FHWA Deploys LTBP Program


Related Links

» National Bridge Inventory
» AASHTO Bridges Subcommittee
» Strategic Highway Research Program 2


Contact Us

» Hamid Ghasemi, Ph.D
LTBP Program Manager
E-mail ltbp@dot.gov
Turner-Fairbank Highway Research Center
6300 Georgetown Pike
McLean, VA 22101
»Driving Directions/Map Click here for directions and a map to theTurner-Fairbank Highway Research Center facility.


Federal Highway Administration | 1200 New Jersey Avenue, SE | Washington, DC 20590 | 202-366-4000