Massachusetts Department of transporation Massachusetts Department of transporatation
Silver Line Gateway

Project Overview

project area map
Silver Line Gateway Project Area Map

The Silver Line Gateway project is the outcome of MassDOT's Alternatives Analysis, which reviewed the potential benefits, costs and impacts of high-quality bus rapid transit (BRT) service for Chelsea and East Boston. The preferred alternative was the product of an extensive civic engagement effort focused on residents, businesses, community organizations and elected officials in Chelsea and Boston.

Extending the Silver Line will fill a critical gap in access between residents in Chelsea, East Boston and other Blue Line communities to the rapid growth in employment opportunities across Boston Harbor in the Seaport District. In Chelsea, which has the greatest proportion of transit-dependent residents in Greater Boston, extending the Silver Line represents a much needed transit alternative.

Project Elements

Proposed Project Elements

The Silver Line Gateway will follow the existing Silver Line route in the Seaport District, before providing a new connection to the Blue Line and East Boston at Airport Station. In Chelsea, the Silver Line Gateway will operate in a new dedicated busway built in the former Grand Junction Railroad right of way (now owned by the Commonwealth). There will be four new stations built in the busway - at Eastern Avenue, Box District, Bellingham Square, and Chelsea. In addition to the Grand Junction, the Silver Line Gateway is able to leverage other recent public infrastructure investments, such as the Chelsea Street Bridge, Massport's Coughlin Bypass Road, and the new Airport Blue Line Station.

MassDOT is also coordinating with the City of Chelsea and the Executive Office of Energy and Environmental Affairs on the creation of a new shared-use path - the Chelsea Greenway - between downtown Chelsea and Eastern Avenue.

Project History

  • October 30, 2013 - Former Governor Deval Patrick announced the Commonwealth's commitment to advance the project
  • November 15, 2013 - MassDOT filed an Expanded Environmental Notification Form (EENF) with the Secretary of Energy and Environmental Affairs to initiate the project's environmental permitting process
  • December 27, 2013 - Former Secretary of Environmental Affairs issued an EENF Certificate, outlining the information for MassDOT to provide in a Single Environmental Impact Report (SEIR)
  • March 31, 2014 - MassDOT filed the SEIR based on the Secretary's Certificate, outlining potential environmental, infrastructure and construction impacts, a draft Construction Management Plan, and proposed mitigation measures
  • April 1, 2014 - MassDOT hosted a public hearing on the 25% design of the project, including plans for the roadway and bridge replacement elements
  • May 16, 2014 - The SEIR Certificate of the Secretary of Energy and Environmental Affairs was issued, with a determination that the SEIR adequately and properly complies with MEPA
  • March 2015 - Construction of Phase 1 began
  • May 2015 - The Washington Avenue Bridge was closed to vehicles
  • September 2016 - The Washington Avenue Bridge reopened to traffic
  • April 21, 2018 - New Silver Line 3-Chelsea Service starts between Chelsea and South Station
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