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MBTA Green Line B Branch Service to be Suspended September 26 to October 4

C, D, and E lines will be impacted as well, due to infrastructure repairs, accessibility upgrades

PHOTO: The green line in front of Marsh Plaza Sept 3. Photo by Cydney Scott for Boston University Photography
Transportation

MBTA Green Line B Branch Service to be Suspended September 26 to October 4

C, D, and E lines will be impacted as well, due to infrastructure repairs, accessibility upgrades

Service on the MBTA Green Line B branch will be suspended between Government Center and Babcock Street for nine consecutive days from September 26 to October 4. Free shuttle buses will run between Back Bay and Babcock Street during that time. Service on the Green Line’s C, D, and E branches also will be impacted. Photo by BU Photography

September 17, 2026
  • BU Today staff
  • Cydney Scott
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Service on the MBTA Green Line B branch, which traverses Boston University’s Charles River Campus along Commonwealth Avenue, will shut down beginning Saturday, September 26 through Sunday, October 4 to accommodate accessibility upgrades and signal modernization within the Green Line central tunnel. Service also will be suspended on the Green Line’s C, D, and E branches during that same period. 

The MBTA’s website announced the following service interruptions:  

For nine consecutive days—starting September 26 and running through October 4—service will be suspended between Government Center and Babcock Street on the B branch, Government Center and Kenmore on the C branch, North Station and Kenmore on the D branch, and Heath Street and North Station on the E branch. 

During the shutdown, B branch riders can use free, accessible shuttle buses between Babcock Street and Back Bay. All surface-level stops on the B branch between Babcock Street and Boston College will be free. The MBTA Route 57 bus along Comm Ave will also run free of charge.

Riders using the C and D branches can use free, accessible shuttle buses between Kenmore and Back Bay. Kenmore access will be free, with the gates open. The MBTA Route 39 bus will replace E branch service between Heath Street and Back Bay, and extra buses will be added to the 39 to accommodate additional capacity. The route will be free during the service interruptions. 

The MBTA notes that riders can also connect to the Orange Line at Back Bay for continued service through downtown toward North Station.

All Blue Line trains will operate on a single track between Revere Beach and Wonderland the weekend of September 26 & 27. Blue line train service will operate between Bowdoin and Wonderland, though every other train will terminate at either Wonderland or Orient Heights.

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MBTA Green Line B Branch Service to be Suspended September 26 to October 4
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