Massachusetts Department of transporation Massachusetts Department of transporatation
Silver Line Gateway

About This Project

The Silver Line Gateway Project will provide new, dedicated bus rapid transit (BRT) service connecting Chelsea and East Boston (via the Blue Line’s Airport Station) with the Red Line’s South Station and Seaport District in Boston. Four new BRT Stations are located at Eastern Avenue, Box District, Bellingham Square (at Arlington Street), and Chelsea (at Everett Avenue). The Silver Line Gateway Project will offer fast travel times and the potential for high ridership.

The new Silver Line 3-Chelsea (SL3-Chelsea) service will begin Saturday, April 21, 2018. The SL3-Chelsea route will operate 60-foot, high-capacity buses serving four new stations through dedicated, bus-only lanes in Chelsea and via the Coughlin Bypass in East Boston. Bus customers from Revere and Chelsea who tend to experience crowding issues on Bus Routes 111, 112, 114, 116, and 117 will benefit from the SL3-Chelsea. Each of these routes will also connect directly to over very close to brand new SL3-Chelsea stations. Learn more in the SL3-Chelsea announcement.

This new service is the first brand new service to be introduced to the MBTA system since the MBTA Greenbush Commuter Rail Line began in 2007. Construction of the SL3-Chelsea route began in March 2015 with construction of dedicated busways and four new stations. Construction of this $56.7 million investment was managed by MassDOT's Highway Division and jointly funded by the MBTA (approximately $49.1 million) and MassDOT ($7.6 million).

Phase 2 of the project includes relocating and constructing a new fully accessible Commuter Rail Station adjacent to the Mystic Mall at Everett Avenue. The new Commuter Rail Station will have intermodal connections with the new Silver Line Bus Rapid Transit Station. Other elements of the Phase 2 work include implementation of new traffic signals at the Busway intersections with Everett Avenue, Spruce Street and Arlington Street, and upgrades to the railroad signal system and grade crossings. Construction of the Phase 2 work is scheduled to begin later this year and be completed by the end of 2020.

Please sign up for email alerts and participate in community meetings. Interpreters will be available at community meetings and project information will be posted on this website.

What's New

The MBTA is pleased to announce the brand-new Silver Line 3-Chelsea route will operate between South Station and the Chelsea and East Boston communities beginning Saturday, April 21, 2018. A bus schedule and map of new service routes and bus rapid transit (BRT) stations will be available soon.

Upcoming Meetings

MBTA officials will present an overview of the new SL3-Chelsea service, discussing schedules, routes, and stops, at two public meetings:

March 19, 2018, 6:30 PM, East Boston High Auditorium, 86 White Street, East Boston

March 21, 2018, 6:30 PM, Chelsea City Hall, 500 Broadway, Chelsea

Spanish language interpreters will be available at both meetings.

Learn more in the Silver Line 3-Chelsea announcement

Contact Us

Please contact Michael Versekes, MBTA, with any questions or concerns at (617) 851-7064 or via email at

Email Updates

Sign up to receive Silver Line Gateway project updates for meeting notices, traffic alerts, and other project information.

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