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A Ready Results brief highlights scan findings.

The U.S. Domestic Scan Program facilitates technology transfer among state departments of transportation on a variety of topics. Scans help accelerate dissemination of information among states and lead to quicker implementation of new technologies and practices.

This website serves three main purposes:

  1. Provides information about the Domestic Scan Program (NCHRP Project 20-68A) and individual scans, including final reports, team members and sites visited.
  2. Describes research to measure and trace scan impacts (NCHRP Project 20-68B).
  3. Encourages scan team participants to record follow up implementation and dissemination activities.

The U.S. Domestic Scan Program was developed by the American Association of State Highway and Transportation Officials and is administered through the National Cooperative Highway Research Program using consultant contracts to manage the scans identified by the NCHRP Project 20-68A panel.


What's New

An article entitled, 8 Steps to Green Infrastructure Success, which details best practices from Scan 16-02 — Leading Landscape Design Practices for Cost-Effective Roadside Water Management, was published in the February 2021 issue of Stormwater.

The final scan report for Scan 19-01 — Leading Practices for Detailing Bridge Ends and Approach Pavements to Limit Distress and Deterioration has been completed and posted on the scan page.

Ready Results Briefs were crafted for Scans 17-02, 18-01 and 18-02 summarizing the need for the scans, highlighting the scans' findings, and sharing plans for how those findings will be put to work within the industry.

Members of Scan 17-02 Successful Approaches to Accommodate Additional Modes and Services in Existing Right Of Way conducted a series of two AASHTO-hosted webinars, which presented highlights, findings and insights on several high-profile transit projects. The AASHTO webinar recording can be found on the scan page.

Then final scan report for Scan 18-02 — Leading Practices in Modifying Agency Organization And Management To Accommodate Changing Transportation System Technologies has been completed and has been posted on the scan page.

Both the final report and executive summary for Scan 17-03 Experiences in the Performance of Bridge Bearings And Expansion Joints Used For Highway Bridges has recently been completed and posted on the scan page.

An article entitled, Experts Identify Best Practices in Steel Bridge Coating, which details best practices from Scan 15-03 — Successful Preservation Practices for Steel Bridge Coatings, was published in the Winter 2019 issue of the Paintsquare Press.

Members of Scan 14-01 Leading Management Practices in Determining Funding Levels for Maintenance and Preservation hosted a peer exchange, which was attended by 30 states and focused on performance-based maintenance budgeting. The agenda and presentations can be found on the scan page. The recently released Final Report can also be found on the scan page.

The final final report and executive summary for Scan 18-01 — Successful Approaches for the Use of Hydrodemolition for Partial Depth Removal of Bridge Decks has been recently completed and posted on the scan page.

Scan 17-03 Experiences in the Performance of Bridge Bearings And Expansion Joints Used For Highway Bridges informed revisions to the Louisiana DOTD's Bridge Design and Evaluation Manual. Bridge Design Technical Memorandum No. 82 describes the revisions.

Rebecca Curtis, MDOT’s bridge management engineer and chair of the Scan 15-02, worked with the Michigan Tech Research Institute to plan and host a one-day conference in Lansing in October 2017 dedicated to bridge scour risk management.

New final reports detail the objectives, activities and findings of two scans that addressed safety topics:
Scan 12-03 — Advances in Safety Program Practices in “Zero-Fatalities” States
Scan 14-03 — Successful Approaches for the Development of an Organization-Wide Safety Culture in Transportation Agencies

Several Scan 13-02 team members shared key findings and lessons from the Civil Integrated Management scan in a Video Brief.

In cooperation with Scan 13-01 team members, Oregon DOT produced a video on Cross-Training at Transportation Agencies based on results of the scan.

TRB recorded a Webinar on the U.S. Domestic Scan Program in October 2015. The presentations featured an outline of the program, examples of recent scans, and how the scans can be used. The videos are available on-demand at no cost.

FHWA developed a three part Web-based course with content informed by Scan 13-03: "Bonded Repair and Retrofit of Concrete Structures Using FRP Composites." Part 1. Part 2. Part 3.

NCHRP published an Impacts on Practices brief, Peers share know-how to speed innovation [PDF], featuring the U.S. Domestic Scan Program.

Updated February 22, 2021.

Scans address a wide range of topics critical to DOTs. Complete details on each scan are available at left.

An NCHRP Impacts on Practice brief features the program.


About this Website

This website is a project of NCHRP 20-68A: U.S. Domestic Scan Program. Scan participants and others are encouraged to post descriptions of beneficial changes in practice at state DOTs as a result of a Domestic Scan Program tour or follow-up dissemination of findings. Any opinions, findings, or conclusions expressed on this website are those of the authors and do not necessarily reflect the views of the Transportation Research Board or the National Academies.