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

Pre-Construction Surveys Now Being Scheduled

Property owners are being contacted to participate in a Pre-Construction Survey as part of the MBTA Green Line Extension (GLX) Project.

The purpose of the survey is to record existing property conditions. The surveys include written and visual documentation both inside and outside of structures typically within 100 feet of the existing right-of-way. The survey will serve to protect both the property owner and the design/builder as the project gets underway. All information gathered from the survey will be shared with the owner. All information is confidential and the survey will be held as a sealed document by the MBTA and GLX Constructors.

Peer Consultants has been hired by Green Line Extension Constructors to perform this work. They are now reaching out to schedule surveys with property owners starting on the east side of the alignment south of Winthrop St. in Medford and progressing south toward Lechmere Station in Cambridge.

Contact information for Peer Consultants:
Phone: (781) 418-2572

To determine if your property is eligible for the survey click on the link below.

Construction Outlook (May-June, 2018)

Tree Clearing and Grubbing to Commence on West/South Side of MBTA Right-of-Way beginning in Medford and Moving South to Lechmere and Union Square Areas.

In order to take advantage of construction mobilization efficiencies and the availability of equipment and workforce, the Design-Build (DB) Entity for the GLX project, GLX Constructors (GLXC), will begin tree and stump clearing and trash removal operations in selective areas along the west/south side of the MBTA Lowell Line right-of-way.

Please view our Construction Activities page for details on all current and upcoming construction and other work. This page will be the home for all GLX construction updates and is also linked under Construction Info to the right.

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


GLX General Public Meeting
Wednesday, July 18, 2018
6:30 to 8:00 PM
Medford City Hall Chamber
Medford, MA 02155

Disadvantaged Business Enterprise (DBE)
Outreach Forum
Thursday, June 21, 2018
3:30 to 6:30 PM
200 Inner Belt Road, Suite 225
Somerville, MA 02143

(617) 684-3277

* * *
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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