Massachusetts Bay Transportation Authority (MBTA) Massachusetts Department of Transportation
Green Line Extension Green Line Extension

March 21 Meeting Rescheduled to March 28

Please be advised the Green Line Extension (GLX) project public meeting recently scheduled for March 21, 2018, has been RESCHEDULED due to weather.

GLX Public Meeting
Wednesday, March 28, 2018
6:30 - 8:00 pm
Somerville High School Auditorium
81 Highland Avenue
Somerville, MA 02143

The purpose of the meeting is to provide an outlook on construction activities planned in the coming months.

March 16, 2018

Tree Cutting & Clearing
Along the Lowell and Fitchburg Commuter Rail Lines
North of College Ave. Medford to Washington St. Somerville
Mid to Late April 2018

The GLX Project regularly gives updates to the MassDOT Board of Directors and the MBTA Fiscal & Management Control Board (FMCB). To view the GLX presentation materials shared with these boards please visit the Fiscal and Management Control Board page of the MBTA website.

For inquiries relating to Green Line Extension construction work please use our Construction Hotline - 1-855-GLX-INFO (459-4636) - 24/7 Coverage. For all other Green Line Extension inquiries please contact the project at

Pre-construction Activity Notice

GLX Constructors, the design-build entity for the MBTA Green Line Extension Project, is planning to begin pre-construction activities in advance of excavation work that is scheduled for Spring of 2018. These preconstruction activities are needed to collect data for the completion design work. The activities include land survey, soil drilling/boring, tree & vegetation removal, and pre-construction property surveys for abutting homes and businesses along the existing commuter rail lines. Home owners and businesses will be notified when pre-construction survey work is scheduled for their property.

Upcoming Activities:

  • Mid-Late End of February 2018 - Preconstruction property surveys, survey control, and geotechnical boring work continues from East Somerville to Magoun Sq. and Lechmere to Union Square. Utility test pitting at roadways in Somerville and Medford. Fencing off of parking and interior building modifications at the Community Alternatives Building (35 Charlestown Street, Somerville).
  • March 2018 - Mobilization and access, temporary fencing, and layout in advance of excavation work Spring of 2018, right of way clearing, geotechnical borings, and utility test pitting.

GLX Public Meeting
Wednesday, March 28, 2018
6:30 - 8:00 pm
Somerville High School Auditorium
81 Highland Avenue
Somerville, MA 02143

* * *
For Language or Access Accommodations Contact:
1-855-GLX-INFO (459-4636) or
at least one week in advance.
Construction Info

For all queries and comments related to the Green Line Extension project, please contact the project staff.

If you need project materials in alternative languages or formats, please submit your request here.

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