Synthesis of Information Related to Highway Practices. Topic 55-08. Construction Strategies and Techniques for Bridge Replacements in Complex Scenarios

A significant number of bridges on the national inventory are reaching the end of their service life and are being replaced yearly by state departments of transportation (DOTs). Many of those replacement bridges are on high-speed, high-traffic routes necessitating complex and, in some cases, costly strategies and construction techniques for balancing the mobility of the traveling public and work zone safety while constructing those replacement bridges within the budgetary constraints. Typical bridge replacement construction strategies and techniques for complex scenarios include: staged construction; construction of the new bridge off the existing alignment and shifting traffic; accelerated Bridge Construction techniques minimizing disruption such as lateral bridge slides; temporary bridges (diversions or runarounds); and closure and full detour. State DOTs will consider a variety of factors when deciding how to approach the bridge replacement project, such as: existing bridge condition; site characteristics; right-of-way procurement; geotechnical characteristics; hydraulic requirements; geometric requirements; average Annual Daily Traffic; crash history; detour out-of-distance travel; stakeholder input; initial project cost; asset life-cycle cost; direct costs; user costs; contract period strategy; and project delivery method. The objective of this synthesis is to document practices used by state DOTs for bridge replacements in complex scenarios.


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  • Status: Proposed
  • Funding: $55000
  • Contract Numbers:

    Project 20-05, Topic 55-08

  • Sponsor Organizations:

    National Cooperative Highway Research Program

    Transportation Research Board
    500 Fifth Street, NW
    Washington, DC  United States  20001

    American Association of State Highway and Transportation Officials (AASHTO)

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

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Project Managers:

    Larson, Sandra

  • Start Date: 20230427
  • Expected Completion Date: 0
  • Actual Completion Date: 0

Subject/Index Terms

Filing Info

  • Accession Number: 01886944
  • Record Type: Research project
  • Source Agency: Transportation Research Board
  • Contract Numbers: Project 20-05, Topic 55-08
  • Files: TRB, RIP
  • Created Date: Jul 3 2023 10:09AM