MGNA: Medford Green Line Neighborhood Alliance

Information about our green line extension.

GLX-Route 16 Environmental Impact Study begins

19 November, 2017 (14:34) | News | By: Editor


The MBTA has begun the public process of preparing an Environmental Impact Report for the proposed Green Line Extension (GLX) station at Mystic Valley Parkway and Boston Avenue on the Medford/Somerville line.

The Mystic Valley Station was identified as the preferred terminus station location on the GLX Medford Branch in the 2009 Draft Environmental Impact Report for the project. However, due to fiscal constraints, MassDOT deferred this one-mile portion of the extension to a second phase.

Now, with a contract to build Phase I of the GLX expected to be awarded in December, the MBTA has resumed the planning for Phase II, the Mystic Valley Parkway Station.

The first step was the filing of a Notice of Project Change (NPC) document on October 17. The NPC presents a preliminary proposal for the continued extension of the Green Line along the MBTA Lowell Line commuter rail right of way from the Phase I terminus at College Avenue in Medford to Mystic Valley Parkway in Somerville (current site of the U-Haul building at 600 Mystic Valley Parkway).

The purpose of the NPC is to both initiate additional review for the extension to Mystic Valley Parkway by the Massachusetts Environmental Policy Act (MEPA) Office, as well as provide an opportunity for public input on proposed station design changes, from a two-level station (previously reviewed) to an at-grade, one-level station (currently proposed).

The NPC also includes a new possible alternative design, proposed by the Medford Green Line Neighborhood Alliance, in which the Mystic Valley Parkway station would be integrated into the existing U-Haul building site, which would be adapted for different uses, rather than the building being demolished to accommodate the station only.

The NPC has been posted to the GLX Project website (direct link to report PDF), and printed copies are available at the city halls and libraries in Medford and Somerville. Additional information about the NPC also can be found on the About this Project page on the GLX website.


Members of public are invited to submit written comments on the NPC by 5 p.m. on Tuesday, November 28. Comments should be addressed to:

Secretary of Energy and Environmental Affairs

Executive Office of Energy and Environmental Affairs (EEA)

Attn: MEPA Office

EEA No. 13886

100 Cambridge Street, Suite 900

Boston MA  02114

Oral comments also will be accepted at the following public meeting:

Monday, November 20

6 to 8 p.m.

Breed Memorial Hall – Tufts University

51 Winthrop Street, MedfordFollowing the close of the public comment period, the Secretary of Energy and Environmental Affairs will issue a scope for the Mystic Valley Parkway Station Environmental Impact Report study, which will be conducted throughout 2018 by the MBTA and consultants.