Research for AASHTO Standing Committee on Highways. Task 261. Best Practices for Implementing Quality Control and Quality Assurance for Tunnel Inspection

The National Transportation Safety Board (NTSB) issued preliminary safety recommendations as a result of the July 10, 2006 ceiling collapse in the I-90 connector tunnel in Boston, Massachusetts. The NTSB recommendations cited a need for improving practices used by state departments of transportation (DOTs) for inspecting highway tunnels. However, to date there is limited experience within state DOTs regarding effective practices for implementing the wide variety of possible methods for tunnel inspection. Because of the variety of methods for implementing tunnel inspection practices across different states, guidelines are needed to enable states to select inspection practices most appropriate for their particular conditions. It is anticipated that the tunnel inspection guidelines will include practices for implementing quality assurance activities such as a structured review of inspection results and consistency. Existing methods currently used by state DOTs quality control/quality assurance (QC/QA) programs, with respect to tunnel inspections, need to be synthesized to identify best existing practices. A literature review and analysis of tunnel inspection practices in other transportation agencies, port authorities, including local governments (cities and counties), should also be conducted. This project will focus on tunnel inspection practices, but will also coordinate with efforts currently underway through NCHRP 20-07, Task 230, Safety and Security in Roadway Tunnels. The objective of this project is to develop guidelines for owners to use in selecting practices for tunnel inspection, operational safety and emergency response systems testing, and inventory procedures to improve the safety of highway tunnels.


  • English


  • Status: Completed
  • Contract Numbers:

    Project 20-07, Task

  • Sponsor Organizations:

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  USA  20590

    American Association of State Highway & Transportation Officials

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

    National Cooperative Highway Research Program

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

    Dekelbab, Waseem

  • Performing Organizations:

    Gannett Fleming, Incorporated

    209 Senate Avenue
    Camp Hill, Pennsylvania  USA  17011
  • Principal Investigators:

    Allen, Chester

  • Start Date: 20081007
  • Actual Completion Date: 20091006
  • Source Data: RiP Project 18183

Subject/Index Terms

Filing Info

  • Accession Number: 01464443
  • Record Type: Research project
  • Source Agency: National Cooperative Highway Research Program
  • Contract Numbers: Project 20-07, Task
  • Files: TRB, RiP, USDOT
  • Created Date: Jan 3 2013 2:42PM