The Framingham/Worcester Line, historically part of the Boston & Albany Railroad (B&A), was merged into the New York Central Railroad (NYC) and its ownership subsequently passed to PC in 1968. As part of the Massachusetts Turnpike Boston Extension's construction in the 1960s, the Worcester Line's roadbed between Route 128 and Boston was sold to the Massachusetts Turnpike Authority, with the provison that the control of the railroad remain with NYC. Conrail inherited the line which formed a vital freight artery between Boston's Beacon Yard and Conrail's Selkirk Yard. The Riverside-Framingham section was sold to the MBTA in 1976 as part of their larger acquisition of PC commuter assets, but the section past Framingham remained in Conrail control. In September 2009, Conrail successor CSX Transportation and the Commonwealth finalized a agreement to purchase CSX's Framingham to Worcester tracks, as well as the Grand Junction Railroad plus lines which will be part of the South Coast Rail project, to improve service on the Framingham/Worcester Line. After several years of construction and negotiations, ownership of the line was transferred to the commonwealth on October 4, 2012, with increased service on the outer section of the line beginning several weeks later.