Greenbush Line

Greenbush Line. It is a commuter rail service operated by the Massachusetts Bay Transportation Authority and its contractor Keolis within the Greater Boston metropolitan area. The line runs 17.6 miles from South Station in Boston to the terminal at Greenbush in Scituate, serving eight stations along the South Shore. Its 2007 opening marked the restoration of passenger service on a corridor that had been abandoned for decades following the decline of the Old Colony Railroad.

History

The right-of-way was originally developed in the 19th century by the South Shore Railroad and later became a vital part of the Old Colony Railroad network, connecting Boston to Plymouth and Cape Cod. Passenger service was discontinued in 1959 following the bankruptcy of the New York, New Haven and Hartford Railroad, which had absorbed the Old Colony Railroad. For decades, the corridor lay dormant or was used for sporadic freight rail service. The modern project was revitalized as part of the Central Artery/Tunnel Project mitigation agreements in the 1990s, aiming to reduce traffic congestion on Route 3. After significant community debate and environmental review, construction began in the early 2000s, overcoming challenges related to historic preservation in Hingham and wetland impacts. The line opened for full service on October 31, 2007, representing a major investment in South Shore public transportation.

Route and stations

The line originates at the major transit hub of South Station, which provides connections to the MBTA Red Line, MBTA Silver Line, and other MBTA Commuter Rail services. From there, it travels southeast through the Fort Point Channel tunnel before emerging in South Boston. The route passes through Dorchester and alongside the Southeast Expressway before entering the more suburban landscapes of Quincy, Weymouth, Hingham, Cohasset, and Scituate. Key stations include Quincy Center, offering a transfer to the MBTA Red Line, and West Hingham station. The terminal, Greenbush, features a large park-and-ride facility. The alignment includes several notable engineering features, such as a tunnel through Hingham's historic district and a bridge over the Gulf River in Scituate.

Operations

The Massachusetts Bay Transportation Authority oversees the service, with daily operations contracted to the French company Keolis. Trains run primarily during peak commuting hours on weekdays, with limited midday and weekend service. The line is fully integrated into the MBTA Commuter Rail fare system, utilizing the CharlieCard and mTicket mobile application. Typical travel time from Greenbush to South Station is approximately 45 minutes. Operations are coordinated from the MBTA Commuter Rail Operations Center and share dispatching with the adjacent Old Colony Lines. Service can be affected by weather events, particularly nor'easters impacting the South Shore, and by occasional delays on the shared approach to South Station.

Rolling stock

The line is operated with push-pull trainsets powered by HSP-46 diesel-electric locomotives manufactured by Siemens Mobility. These locomotives are part of a fleet acquired to replace older MBTA Commuter Rail power. Passenger coaches are primarily double-decker Kawasaki Heavy Industries bi-level cars, which provide high capacity and panoramic views. This rolling stock is maintained at the MBTA Commuter Rail's Southampton Street Yard and at the Greenbush layover facility. The trains are equipped with amenities such as Wi-Fi, bicycle storage, and accessibility features compliant with the Americans with Disabilities Act of 1990.

Future plans

Proposals have included extending service further south to Plymouth or Kingston, leveraging existing Old Colony Railroad infrastructure. The Massachusetts Department of Transportation has studied potential station additions, such as at Weymouth Landing, to improve local access. Long-term plans within the MBTA's Focus40 capital program consider electrification of the corridor to improve performance and reduce emissions, aligning with statewide goals set by the Massachusetts Global Warming Solutions Act. Community advocacy groups like the TransitMatters continue to push for increased service frequency and integration with the broader regional rail vision for Greater Boston.

Category:MBTA Commuter Rail lines Category:Railway lines in Massachusetts Category:Transportation in Norfolk County, Massachusetts Category:Transportation in Plymouth County, Massachusetts