The new second branch completes the 4.7-mile extension on budget, connecting historically underserved Medford and Somerville to Downtown Boston
The opening of the Medford Branch of the Boston Green Line Extension (GLX) today completes an important rail link in Greater Boston, representing a critical achievement for the Massachusetts Bay Transportation Authority’s (MBTA) regional transit system. Forecast to add 50,000 daily passenger trips to Boston’s transit network, the $2.3bn project brings much-needed transit service to the Medford and Somerville communities.
As Design Professional for the GLX since 2016, Arup supported the MBTA with overseeing the design development, and testing and commissioning processes of the entire extension, including the Medford and Union Square branches. Altogether, the project includes the construction of 4.7 miles of new light rail tracks, the addition of six new stations, along with the relocation and reconstruction of Lechmere station, three new traction power sub-stations, a new vehicle maintenance facility, and a community path extension for cyclists and pedestrians that follows the length of the GLX route. The second of the GLX’s two segments, the Medford Branch follows the March 2022 opening of the Union Square Branch.