I-93 Tri-Town Interchange Project
Project Limits Map from interchange 41 to interstate 495

Mass DOT Highway and Executive Office of Housing and Economic Development
The I-93 Tri-Town Interchange Project is critical to improving the regional highway network, safety and traffic flow, as well as serving as a catalyst for economic development and job creation in the Merrimack Valley.


Goals of the project include:
  • Improving the safe and efficient operation of the highway system;
  • Relieving congestion on Interstate 93 and on roadways in the surrounding communities of Andover, Tewksbury and Wilmington;
  • Reducing cut-through traffic in local residential neighborhoods;
  • Reducing traffic congestion on the adjacent industrial and commercial roadways;
  • Investigating potential non-vehicle commuting options, such as commuter rail and car pooling;
  • Supporting the municipalities' goals for sustainable development and mixed use projects and minimizing environmental impacts; and
  • Supporting the vision of a proposed life sciences and high technology corridor.

The Massachusetts Department of Transportation (MassDOT) plans to relieve congestion on I-93 by constructing a new interchange between Interchanges 41 and 42 and adding one travel lane in each direction between this area and Interstate 495. The project team is coordinating with regional planning agencies, the state's I-93 Working Group, the Tri-Town Development Task Force and others to ensure the project is sensitive to the communities' visions and plans.

About the Project presents an overview of the plan and the schedule and introduces the team. Detailed information about meetings and project updates is located in Meetings & News. Current and background documents, information about other related studies and meeting summaries are available under Project Documents. Links to organizations and other relevant websites and information are under Resources. If you would like more information, want to submit a comment or question or to be added to our email or U.S. Mail distribution lists, please visit the Contact Us page. We have also included a list of Frequently Asked Questions.

MassDOT and the Executive Office of Housing and Economic Development (EOHED) value your input. Please participate in the public workshops and visit this website for updates on the design process and workshop notices. We appreciate your interest and look forward to your participation in this important project. Thank you!

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whats new
What's New -
Updates and breaking news.
Project Documents -
Project documents, related studies and meeting summaries.
Meetings & Events -
Upcoming meetings and related events.
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