E branch (MBTA Green Line)

E branch (MBTA Green Line)
Name	E branch
Color	Green
Type	Light rail
System	MBTA Green Line
Locale	Boston, Massachusetts, U.S.
Start	Heath Street
End	Lechmere / North Station
Stations	13
Open	1856 (as a streetcar line)
Owner	Massachusetts Bay Transportation Authority
Operator	Massachusetts Bay Transportation Authority
Character	At-grade street running, subway, and elevated
Stock	Type 8, Type 9
Linelength	3.8 mi

E branch (MBTA Green Line) is one of the four streetcar lines that comprise the Green Line light rail system in Boston, Massachusetts. It operates primarily as a surface-level streetcar route along Huntington Avenue and Tremont Street, connecting the Longwood Medical and Academic Area and the Mission Hill neighborhood to downtown Boston and the Lechmere terminus. The branch is notable for its mix of dedicated right-of-way, street running in mixed traffic, and subway operation through the Green Line tunnel under Boston Common.

History

The origins of the E branch trace back to the mid-19th century with horse-drawn streetcars operated by the West End Street Railway along what is now Huntington Avenue. The route was electrified in the late 1880s and became a core part of the Boston Elevated Railway network. In 1941, streetcar service was replaced by trackless trolleys, but rail service was restored in 1985 following the closure of the Washington Street Elevated and the need for improved transit in the Longwood Medical and Academic Area. Key historical infrastructure includes the conversion of the former Boston and Albany Railroad Highland branch right-of-way for the D branch, which shares the Green Line tunnel with the E branch. The Arborway streetcar yard, once the line's terminus, was a focal point of community debates over service extensions.

Route description

The E branch begins at the Heath Street surface terminal in the Mission Hill neighborhood. From there, it travels west along the median of Huntington Avenue, passing major institutions like Northeastern University, the Museum of Fine Arts, and the Symphony Hall. The route enters the Green Line tunnel at the Northeastern University portal, joining the other Green Line branches for subway operation beneath Boylston Street and Boston Common. Trains emerge at North Station and cross the Charles River via the Lechmere Viaduct to terminate at the elevated Lechmere station in East Cambridge. The surface segment features a mix of dedicated lanes and street running in mixed traffic, particularly near Brigham Circle.

Station list

From Heath Street to Lechmere, the stations are: Heath Street, Back of the Hill, Riverway, Mission Park, Fenwood Road, Brigham Circle, Longwood Medical Area, Museum of Fine Arts, Northeastern University, Symphony, Prudential, Copley, Arlington, Boylston, Park Street, Government Center, Haymarket, North Station, Science Park/West End, and Lechmere. Stations from Symphony to Park Street are shared with the B, C, and D branches in the subway.

Rolling stock

The E branch is served by the MBTA's fleet of Kinki Sharyo Type 8 and CRRC Type 9 low-floor light rail vehicles. These vehicles are necessary to serve the high-platform stations in the subway section, like Park Street, and the low-platform surface stops along Huntington Avenue. Maintenance for the branch's rolling stock is performed at the Southampton Street Yard and the Riverside carhouse, which also serves the other Green Line branches.

Service patterns

Primary service on the E branch runs between Heath Street and Lechmere or North Station at all times. During peak hours, some short-turn trips terminate at Government Center or North Station to manage congestion in the central subway. The branch interlines with the B, C, and D branches in the Green Line tunnel, creating a complex service pattern managed by the MBTA's Operations Control Center. Service is frequently affected by traffic congestion on its surface segment and by special events at Fenway Park or TD Garden.

Ridership and statistics

Pre-pandemic, the E branch was one of the busiest surface light rail lines in the United States, with an average weekday ridership exceeding 20,000 passengers. Key ridership generators include the Longwood Medical and Academic Area, Northeastern University, and the Prudential Center. The Museum of Fine Arts and Symphony stations see significant patronage from cultural institutions. Ridership data is collected by the MBTA and reported to the Federal Transit Administration as part of the National Transit Database. The surface segment's reliability metrics are often compared to the exclusive right-of-way performance of the D branch.

Category:MBTA Green Line