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Massachusetts Department of Transportation
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MassDOT Highlighted Projects & Studies

Green Line Extension Project (GLX)

The Green Line Extension (GLX) project will extend the existing MBTA Green Line service north of Lechmere Station and into the communities of Somerville, Cambridge, and Medford.

The project involves construction of 6 new Green Line stations along 2 branches (the Medford Branch and Union Square Branch) along with the relocation and reconstruction of Lechmere Station.

The project will significantly reduce vehicle trips and related air emissions while increasing access to fast and reliable public transit service in historically underserved areas. The project is expected to support increased ridership of more than 50,000 passenger trips per day once completed.

What you need to know

About the Green Line Extension Project  GLX construction activities and traffic updates  GLX community working group meetings & documents  GLX public meetings & documents  Bridge Closures - GLX Project  Archive of GLX environmental documents from previous GLX website 

Contact Information

Address

200 Inner Belt Road, Somerville, MA 02143
directions 

Phone

Construction Hotline (855) 459-4636

24/7 Coverage

Online

Green Line Extension inquiries info@glxinfo.com
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Upcoming Events

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More Information

Additional Resources

MBTA Fiscal and Management Control Board
Image credits:  MassDOT
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