Synthesis of Information Related to Highway Problems. Topic 46-09. Extending Bridge Service Life through Field Welded Repair and Retrofits

Field welded repairs and retrofits can strengthen older bridges and improve their fatigue life. For example, distortion induced fatigue cracking in older bridges can be mitigated through field welded retrofit details. In other cases, field welded details have been used to strengthen bridges or repair those that have experienced section loss. Some engineers have taken advantage of such solutions, but others lack knowledge, experience, or confidence about effective use of field welding to extend bridge service life. The objective of this synthesis is to document field welded repair and retrofit solutions and practices that owners have used on existing bridges. Results will help bridge owners evaluate and implement solutions for successfully extending the service life of their bridges.


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  • Status: Active
  • Funding: $40000.00
  • Contract Numbers:

    Project 20-05, Topic

  • Sponsor Organizations:

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590

    American Association of State Highway & Transportation Officials (AASHTO)

    444 North Capitol Street, NW, Suite 225
    Washington, DC  United States  20001

    National Cooperative Highway Research Program (NCHRP) Synthesis

    Transportation Research Board
    500 Fifth Street, NW
    Washington, DC    20001
  • Project Managers:

    Gause, Jo

  • Performing Organizations:

    Fish & Associates Incorporated

  • Principal Investigators:

    Fish, Philip

  • Start Date: 20140917
  • Expected Completion Date: 0
  • Actual Completion Date: 0
  • Source Data: RiP Project 37609

Subject/Index Terms

Filing Info

  • Accession Number: 01543393
  • Record Type: Research project
  • Source Agency: Transportation Research Board
  • Contract Numbers: Project 20-05, Topic
  • Files: TRB, RiP
  • Created Date: Nov 14 2014 1:00AM