I-93 Tri-Town Interchange Project

I-93 northbound where roadway is reduced from 4 to 3 lanes at interchange 41
Mass DOT Highway and Executive Office of Housing and Economic Development
About the Project


Overview:

MassDOT's Highway Division and EOHED are working together on the I-93 Tri-Town Interchange project because it presents opportunities to improve safety and alleviate traffic congestion on local and regional roadways and to serve as a catalyst for sustainable, regional economic development. The Federal Highway Administration (FHWA) is the lead agency for environmental review.

This project will relieve congestion on I-93 and local roadways in the area. To prepare the Environmental Impact Statement (EIS) and the Environmental Impact Report (EIR), the project team will investigate alternatives to satisfy state and federal guidelines. The document will identify project impacts and propose ways to minimize them.

Currently, I-93 operates with four lanes south of the Tewksbury/Wilmington town line and three lanes to the north. In the peak morning and afternoon travel times, drivers are allowed to use the breakdown lane in the three-lane section. This was always considered a temporary solution.

To improve highway safety and reduce congestion in this section of I-93, the Highway Division has recommended extending the add-a-lane segment from the current three-lane configuration up to Interstate 495 (5 miles). Extending the fourth lane will implement a permanent, long-term solution to accommodate existing volume between Interchange 41 and I-495, which has been managed by allowing vehicle travel in the breakdown lanes. The design team anticipates that the lanes can be added by using space currently dedicated to a grass median, rather than widening the highway.


NEPA/MEPA Joint Environmental Review Process

FHWA is the lead agency for the environmental review. The project will follow a joint National Environmental Policy Act and Massachusetts Environmental Policy Act (MEPA) review process. The federal NEPA and state MEPA processes have similar goals: to identify the least environmentally damaging alternative that also protects public health and safety while meeting the project purpose and need. The processes are concurrent and the parties will consult with each other with the goal of producing a joint document and arriving at similar conclusions.

The NEPA process includes submitting a Letter of Initiation to the Federal Highway Administration (FHWA), filing a Notice of Intent (NOI), holding a public Scoping Meeting and submitting a Draft Environmental Impact Statement (DEIS) and Final Environmental Impact Statement (FEIS). After a public hearing on the FEIS is held and the comment period closes, FHWA will issue its Record of Decision (ROD) on the approved project and the Highway Division can begin final design.

The MEPA process includes filing an Environmental Notification Form (ENF) and Notice of Project Change (NPC) and submitting a Draft Environmental Impact Report (DEIR) and Final Environmental Impact Report (FEIR). The Secretary of Environmental Affairs issued a Certificate outlining a scope of work on February 8, 2008. A Notice of Project Change updated the state environmental planning process to include extending the fourth lane on I-93 from the new interchange to Interstate 495. A public hearing will be held on the FEIR and the Secretary of Environmental Affairs will issue a determination following a comment period.

You can find a detailed description of the environmental review process by following this link to the project Process Fact Sheet. The anticipated schedule for federal and state environmental reviews is outlined in the Schedule section of this page.


Regional Economic Development - Andover, Tewksbury and Wilmington

The I-93 Tri-Town Interchange project represents the latest step in a long multi-community effort to alleviate traffic congestion and facilitate economic development and commercial expansion opportunities. The communities are depending on combined input from stakeholders, regional planning agencies, regulators and the Commonwealth to achieve these goals. In 2001-2003, the Merrimack Valley Planning Commission (MVPC) performed the "Interstate 93 Corridor Study" with funding from MassHighway and FHWA. Combining the findings of the Corridor Study with those of a subsequent study performed by MassHighway and FHWA, the MVPC prepared an Interchange Justification Report (IJR), which provided a preliminary evaluation of the potential benefits of the project as well as possible alternatives. The IJR will need to be amended to reflect the eventual preferred alternative's developed interchange, prior to filing the DEIR/EIS.

The Merrimack Valley Economic Development Council (MVEDC) has been working as a neutral facilitator with the three towns of Andover, Tewksbury and Wilmington. The three communities formed (by intercommunity agreement) as a regional entity on the Tri-Town Task Force and adopted a sustainable vision for the preservation and future development of land within the project limits. Their goal is to facilitate the development of nearly 700 acres into a sustainable mixed-use area that supports smart growth centers.

The Highway Division and EOHED are working with the Tri-Town Development Task Force and the state's I-93 Working Group to coordinate regional planning. The Task Force and Working Development Group also act as key interfaces between the project team, local constituents, elected officials and developers. Active participation by the three affected communities, property owners, businesses and developers, and other interested parties will be important to meeting project goals.

You can find more information on community development initiatives on the Community Planning page.


Public Involvement Program

MassDOT and EOHED's approach to public involvement includes consultation with local communities, regional and local planners, economic development agencies, elected officials and advisory groups, environmental and community groups, members of the public, developers and business organizations. The goal of the public involvement program is to maximize access to information and provide opportunities for community residents and business and land owners to learn about the project and comment on key proposals and milestones. Project fact sheets will be posted on this site, along with documents and meeting notices. MassDOT and EOHED welcome your input and encourage you to submit written comments, which the project team will carefully consider as it develops the refined preferred alternative.


Project Schedule

The following is the anticipated project schedule for federal and state review and deliverables:

2009 Milestones
NEPA Notice of Intent January 26
MEPA Notice of Project Change February 2
Environmental Monitor notice February 11
NEPA Scoping Meeting March 19
Public Workshop #1 June 25
Public Workshop #2 November 12

2010 Milestones
Draft Alternatives Analysis February
DEIS/DEIR completed August
Public Workshop #3 TBD

2011 Milestones
FEIS/FEIR Public Hearing May

2012 Milestones
25% Design Public Hearing February


View more information on the next meeting.
Project Team

The Highway Division and EOHED have assembled a team of experts to design the project. AECOM is the lead consultant and is responsible for managing the team of sub-consultants for traffic analysis and simulations, economic and land use analyses, environmental permitting, highway and structural engineering, traffic, right-of-way, air quality, hazardous materials and public involvement.

The team of sub-consultants and their areas of expertise are:


Team Logos
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