Greenbush Line

The Greenbush Line is a branch of the MBTA Commuter Rail system which serves the South Shore region of Massachusetts. The 27.6-mile (44.4 km) line runs from downtown Boston, Massachusetts through the cities and towns of Quincy, Braintree, Weymouth, Hingham, Cohasset, and Scituate to the Greenbush neighborhood in southern Scituate. There are ten stations along the line. From South Station, to Quincy Center, service operates in conjunction with the Old Colony Lines commuter rail service via the Old Colony Main Line. From Weymouth Landing/East Braintree to Greenbush, trains utilize the Greenbush Branch, the former South Shore Railroad line that was later incorporated into the Old Colony Railroad.

Modern passenger service on the Greenbush Line began on October 31, 2007. This service restoration, put in place as environmental mitigation for the Big Dig project, was the first passenger service on the line since 1959.