Greenbush Line

Greenbush Line

Company type	Commuter rail line
Industry	Public transportation
Founded	October 31, 2007 (2007-10-31)
Headquarters	Boston , United States
Area served	South Shore, Massachusetts
Products	Commuter rail service
Parent	Massachusetts Bay Transportation Authority (MBTA)

Greenbush Line

The Greenbush Line operates as a segment of the MBTA Commuter Rail system, serving the South Shore area of Massachusetts. It links downtown Boston with several communities such as Quincy, Braintree, Weymouth, Hingham, Cohasset, and Scituate, concluding its route in the Greenbush neighborhood located in southern Scituate. This line includes a total of ten stations.

Between South Station and northern Braintree, the Greenbush Line shares its tracks with the Old Colony Main Line, which is also utilized by the Fall River/New Bedford Line and the Kingston Line. Past Braintree, trains continue along the Greenbush Branch, historically part of the South Shore Railroad before becoming incorporated into the Old Colony Railroad system.

Passenger rail service on this line recommenced on October 31, 2007, ending a hiatus that began in 1959. The reintroduction of service was part of environmental mitigation efforts connected to the Big Dig project, aimed at improving transit options within the region and fostering economic growth along this corridor.

South Shore Railroad and Old Colony Railroad

Rail passenger operations along segments of what is now the Greenbush Line date back more than a century before their discontinuation in 1959. The South Shore Railroad, established by charter in March 1846, constructed a branch from the Old Colony Railroad at Braintree to Cohasset, which began service on January 1, 1849. Initially, three round trips per day were operated using Old Colony rolling stock. The South Shore Railroad separated from Old Colony ownership in 1854. Subsequently, the Duxbury and Cohasset Railroad—chartered in 1867 with backing from Old Colony—extended service to South Duxbury by 1871 and connected to Old Colony at Kingston in 1874. Following an economic downturn during the 1870s, Old Colony acquired both railroads by 1878 and merged them under the designation South Shore Line.

The Nantasket Beach Railroad commenced operations in 1880 between Nantasket Junction and Hull’s Pemberton area, becoming part of Old Colony in 1881. After a temporary closure, it resumed service in 1888. To support traffic to Nantasket Beach, a second track was added from Braintree to Nantasket Junction in 1890.

In March 1893, control of Old Colony and its subsidiaries—including the South Shore Line and Nantasket Beach Branch—was assumed by the New York, New Haven and Hartford Railroad.

The New Haven Era and Service Reductions

The New Haven Railroad planned to electrify its southern commuter routes and constructed infrastructure such as lower-level loop platforms at South Station in preparation. Electrification was ultimately implemented only on the South Shore and Nantasket Beach lines: Nantasket Beach received trolley electrification beginning in 1895 until service ended in 1932; meanwhile, the South Shore line was electrified between Braintree and Cohasset from 1896 to 1899 using a center third rail system but reverted to steam locomotion by 1902 due to safety issues at grade crossings.

By 1911, double tracking had extended as far as Greenbush station, which functioned as a terminus for many short-turn commuter runs. Service schedules at that time included multiple daily trains heading to Plymouth via Kingston alongside short-turn trains terminating at Greenbush and Cohasset.

While passenger volumes peaked under New Haven management, ridership declined after World War I because of increased automobile ownership. Despite filing for bankruptcy in 1935, New Haven maintained minimal passenger operations under court supervision. Service south of Greenbush ceased in 1939 following hurricane damage to critical infrastructure.

World War II brought a temporary boost in traffic due to nearby naval ammunition facilities. Postwar initiatives led by Frederick C. Dumaine, Jr. expanded daily trips and introduced modern diesel equipment such as Budd RDCs during the 1950s. Nevertheless, financial losses continued; after Dumaine's departure, plans were made to terminate all train services by 1958. However, operations persisted until June 30, 1959, when opening of the Southeast Expressway prompted complete cessation of passenger rail service. Freight trains continued running southward until 1979; all rail activity ended by 1983.

Service restoration and related disputes

During the early 1980s, officials from the South Shore advocated for the reinstatement of passenger rail service, with Governor Michael Dukakis expressing support for these initiatives by 1985. In 1990, as part of environmental compensation linked to the Big Dig, federal funding was pursued for the Greenbush and Old Colony Lines. While the Old Colony Lines secured financing and resumed operations in 1997, opposition from local communities blocked funding for the Greenbush Line.

Freight operations continued along the Old Colony Lines until passenger service was restored; however, on the Greenbush Line, freight ceased past Nantasket Junction by 1963 and was fully abandoned by 1983. This prolonged period of inactivity contributed to resistance among residents against reinstating Greenbush service, contrasting with the more favorable reception of the Old Colony Lines. The presence of 28 grade crossings within an 18-mile stretch raised safety concerns, leading the MBTA to launch a significant public safety campaign.

Additional objections arose due to worries about increased noise levels, impacts on neighborhood character, and potential traffic delays at grade crossings. Extensive legal challenges postponed project progress, prompting the MBTA to work closely with affected municipalities on mitigation strategies: these included constructing an $40 million, 890-foot tunnel beneath downtown Hingham, creating a trench-style underpass at Weymouth Landing, and installing sound barriers near residences. These postponements substantially raised expenses; ultimately, the project's cost reached $534 million—equivalent to the combined expenditure for two Old Colony branches.

The extension was designed to alleviate congestion on Interstate 93, Route 3, and Route 3A by offering 3,100 parking spaces and anticipating approximately 8,600 daily one-way boardings, which would reduce roughly 5,000 automobile trips.

Construction commenced in 2003 with major work concluding by February 6, 2007. The inaugural test train operated on May 19, 2007, followed by signal system testing in August. Ceremonial runs took place on October 30, 2007—the day prior to official service launch—with MBTA locomotive #1052 specially adorned for the event.

MBTA operations

Regular passenger service on the Greenbush Line started on October 31, 2007, featuring 12 weekday and eight weekend round trips. Minor finishing work such as fencing in densely populated zones continued into 2008. The line comprises seven stations, each equipped with an 800-foot high-level side platform serving a single track. Parking capacity varies from 200 to 500 spaces per station except at Greenbush station itself, which provides 1,000 spaces to serve commuters from Hanover, Norwell, Marshfield, and Duxbury.

By 2010, ridership had reached only about half of the forecasted figure of 4,200 inbound daily passengers. Inbound daily counts were approximately 3,081 in 2009. A significant portion of users transitioned from MBTA commuter ferry services rather than switching from car travel. Between 2012 and 2018 ridership increased by around 40%, reaching a total of 6,114 daily trips by 2018.

Weekend operations were suspended beginning April 30, 2011 due to tie replacement work on the Old Colony mainline but resumed on December 24 that year. Budgetary constraints combined with fare hikes led to another weekend service suspension starting July 7, 2012; weekend trains returned on December 27, 2014 alongside restored service on the Plymouth/Kingston and Needham Lines.

The COVID-19 pandemic triggered significant schedule reductions between March and June of 2020 as well as December 2020 through April 2021. Weekend service was halted again on January 23, 2021; midday service was introduced April 5 as part of a shift toward a regional rail framework. Weekend trains restarted July 3, 2021. As of February 2022, the line operated with thirteen weekday and eight weekend round trips. By October that year daily ridership stood at approximately 2,691—44% of pre-pandemic levels—representing the slowest recovery among MBTA lines. Starting July 21, 2025, off-peak and weekend stops at JFK/UMass will be discontinued, restricting service there to peak-hour trains traveling in peak directions only.

Station list

Fare zone	Location	Distance (miles/km)	Station	Connections and remarks
1A	Boston	0.0 (0.0)	Disabled access REDIRECT Template:Boston transportation system	Template:Rint Amtrak services: Template:Lnl, Template:Lnl, Template:Lnl Template:Ric: Fairmount Line, Fall River/New Bedford Line, Framingham/Worcester Line, Franklin/Foxboro Line, Kingston Line, Needham Line, Providence/Stoughton Line; seasonal Template:Lc service Template:Ric: Template:Ric, Template:Ric (Template:MBTABus) Template:Ric: Template:MBTA bus links Template:Bus icon Intercity bus connections at South Station Bus Terminal
		2.3 (3.7)	Disabled access REDIRECT Template:Boston transportation system	Template:Ric: Fall River/New Bedford Line, Kingston Line Template:Ric: Template:Ric Template:Ric: Template:MBTA bus links Template:Bus icon UMass Shuttle service available
1	Quincy	7.9 (12.7)	Disabled access REDIRECT Template:Boston transportation system	Template:Ric: Fall River/New Bedford Line, Kingston Line Template:Ric: Template:Ric Template:Ric: Template:MBTA bus links

Fare zone	Location	Distance (miles/km)	Station	Connections and remarks

Fare zone	Location	Distance (miles/km)	Station	Connections and remarks

Fare zone	Location	Distance (miles/km)	Station	Connections and remarks

Fare zone	Location	Distance (miles/km)	Station	Connections and remarks

Fare zone	Location	Distance (miles/km)	Station	Connections and remarks

Fare zone	Location	Distance (miles/km)	Station	Connections and remarks

Fare zone	Location	Distance (miles/km)	Station	Connections and remarks

2	Weymouth, Massachusetts	11.8 (19.0)	Disabled access REDIRECT Template:Boston transportation system || Template:Ric: Template:MBTA bus links
		14.6 (23.5)	Disabled access REDIRECT Template:Boston transportation system ||
3	Hingham, Massachusetts	16.2 (26.1)	Disabled access REDIRECT Template:Boston transportation system ||
4		18.3 (29.5)	Disabled access REDIRECT Template:Boston transportation system ||
	Cohasset, Massachusetts	19.9 (32.0)	Disabled access REDIRECT Template:Boston transportation system ||
5	Scituate, Massachusetts	23.3 (37.5)	Disabled access REDIRECT Template:Boston transportation system ||
6		27.6 (44.4)	Disabled access REDIRECT Template:Boston transportation system ||

External links

• MBTA – Greenbush Line Schedule and Maps
• CBB / MBTA Project Information (Archived)
• "Greenbush Rail Line History" by Thomas J. Humphrey (Archived)
• Photographic Documentation of 2004–2007 Construction (Archived)