Green Line B Branch Station Consolidation
We’re consolidating four B Branch stops into two fully accessible, brand-new stations—Babcock St Station and Amory St Station.
- Contract awarded: Spring 2020
- Projected completion: Late 2021
- Budget: $29,328,818
- Status: 89% construction complete
Building a Better T
As part of our $8 billion, 5-year capital investment plan, we're renovating stations, modernizing fare collection systems, upgrading services for our buses, subways, and ferries, and improving the accessibility of the entire system.
As part of the Green Line Transformation (GLT), this project meets the following goals:
- Addressing demand: Faster trips down Commonwealth Ave
- Accessibility: Raised platforms compatible with low-floor vehicles
- Customer experience: All-new benches, shelters, and safety features at each station
Related Projects
Green Line Transformation
This project is one of many we're working on to ensure twice as many passengers have access to a safer, more comfortable, and more reliable Green Line by 2030.
Project Features
- The consolidation of St. Paul St and BU West stations into Amory St Station
- The consolidation of Babcock St and Pleasant St stations into Babcock St Station
- Longer, 225-foot platforms to accommodate the future fleet
- Accessible boarding at both stations
- Two accessible exits at both stations
- Security and reliability upgrades to trains and stations
Benefits
- Faster, more reliable transportation along Commonwealth Avenue
- Two new accessible stations on the Green Line
- Improved traffic and pedestrian safety in the Boston University neighborhood
What You Can Expect During This Work
To do this work, we need to shut down service between Washington St and Kenmore on most weeknights and weekends throughout the duration of the project.
Pleasant St. Station was permanently decommissioned on February 26, 2021. Riders can instead board at St. Paul St or Babcock St on weekdays when trains are operating.
Shuttles replace B Branch service between Washington St and Kenmore on weeknights and weekends through late 2021.
View all Green Line B service changes
From April 17 – May 9 and May 17 – June 13, we shut down B Branch service for seven weeks for accelerated work.
Occasional overnight and weekend lane closures will be required to allow crews to perform work safely. There may also be occasional overnight detours for vehicles, however, we will ensure that local access is maintained and advance warning signs are posted.
Pedestrian paths of travel will be clearly marked throughout the work zone.
Crews will work overnight from 10 PM – 5 AM on weekdays and 24 hours a day on weekends.
Occasionally, crews will perform daytime work on weekdays at the new station platforms. This work will not impact train service.
From April 17 – May 9 and May 17 – June 13, crews worked 24 hours a day, seven days a week, to accelerate the project schedule.
View the B Branch project update
Anticipated schedule and work activities
| Dates | Work | ||
|---|---|---|---|
| Dates | February 2021 | Work | Pre-construction preparation |
| Dates | February 2021 | Work | Decommissioning of Pleasant St Station |
| Dates | March – April 2021 | Work | Utility/ductbank work |
| Dates | May – June 2021 | Work | Construction of platforms for the two new stations |
| Dates | July – August 2021 | Work | Construction of new canopies |
| Dates | August – October 2021 | Work | Demolition of old platforms at St. Paul St, BU West, and Babcock St |
| Dates | August – late 2021 | Work | Installation of electrical system and site finishes |
This work schedule is dependent on weather and COVID-19 guidelines and is subject to change without notice. GLT will update this page as quickly as possible with the latest construction schedule.
Service Alerts
Photo Gallery
Rendering of the proposed station between Harry Agganis Way and Babcock St, viewed from the sidewalk, with traffic lanes and a bicycle lane in the foreground.
Rendering of the proposed station between Harry Agganis Way and Babcock St, with a view of the platform.
Changes in travel patterns on Commonwealth Ave, as planned by the Commonwealth Ave Phase 2A Project. This typical cross section is looking east: Sidewalk (25 feet on the outbound side, 14-15 feet on the inbound side), 6.5-foot cycle track, 3-foot buffer, 8 feet of parking, two 10.5-foot travel lanes (cars and buses), 1-foot shoulder, 12.75-14 feet of MBTA reservation, Green Line track.
Past Events
Downloads
Contact Information
For all questions and comments related to the Green Line B Branch Station Consolidation, please contact GLT@mbta.com.
To report a noise complaint or issue, call the 24/7 noise hotline at 508-646-4691.
For More Information
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Recent Updates
Building a Better T
As part of our $8 billion, 5-year capital investment plan, we're renovating stations, modernizing fare collection systems, upgrading services for our buses, subways, and ferries, and improving the accessibility of the entire system.
Related Projects
Green Line Transformation
This project is one of many we're working on to ensure twice as many passengers have access to a safer, more comfortable, and more reliable Green Line by 2030.

