Navigating the GLX Project With Bluebikes

The GLX Project is underway. Learn more about the project and the supporting Bluebikes stations located around Somerville.

Beginning in March 2019, the Green Line Extension Project kicked off in Somerville. This project will extend the Green Line across two branches, adding seven stations to the Medford Branch and the Union Square Branch.

In addition, a 1.9-mile long multi-modal community path will be constructed adjacent to the GLX tracks. This path will connect with the Cambridge Grand Junction Multi-use Path and Somerville’s existing Community Path.

The GLX Project is expected to significantly reduce vehicle traffic and will add crucial transportation options for commuters and residents across Somerville and Medford. With various road closures to support the construction of this project, Bluebikes is here to help you navigate any and all temporary detours.

To stay up to date on Somerville construction news, please subscribe to the City of Somerville’s weekly construction newsletter here.

​Broadway Bridge between Ball Square and Magoun Square​

The Broadway Bridge between Ball Square and Magoun Square will remain closed through approximately March 2020. The bridge will be completely demolished and replaced in order to make way for the Green Line Extension.

Learn more about the bike and pedestrian detour route here.

Washington Street Bridge Underpass

The Washington Street Bridge underpass will be closed until approximately the fall of 2019. There will be another period when the bridge and its underpass are closed from the spring to the fall of 2020.

Learn more about the bike and pedestrian detour routes here.

Medford Street Bridge in Gilman Square

The Medford Street Bridge will be closed from May 17, 2019, to approximately the spring of 2020. Learn more about the bike and pedestrian detour routes here.


While the GLX construction is underway, normal traffic patterns may be impacted. However, local businesses will remain open! Be sure to support local shops and businesses throughout construction and beyond, and show that you’re #Loyal2Local.

Did you know that Bluebikes members earn discounts just for biking? All Bluebikes memberships come with a Bicycle Benefits sticker. This awesome rider perk gives you discounts to hundreds of local shops and businesses across Metro Boston and beyond.

Learn More

Plan your next trip to a local business using the Bluebikes app or System Map.