The Framingham Subdivision is a railroad line owned by CSX Transportation

CSX Transportation

CSX Transportation operates a Class I railroad in the United States known as the CSX Railroad. It is the main subsidiary of the CSX Corporation. The company is headquartered in Jacksonville, Florida, and owns approximately 21,000 route miles...

 in the U.S. state

U.S. state

A U.S. state is any one of the 50 federated states of the United States of America that share sovereignty with the federal government. Because of this shared sovereignty, an American is a citizen both of the federal entity and of his or her state of domicile. Four states use the official title of...

 of Massachusetts

Massachusetts

The Commonwealth of Massachusetts is a state in the New England region of the northeastern United States of America. It is bordered by Rhode Island and Connecticut to the south, New York to the west, and Vermont and New Hampshire to the north; at its east lies the Atlantic Ocean. As of the 2010...

. The line runs from Mansfield northwest to Framingham along a former New York, New Haven and Hartford Railroad

New York, New Haven and Hartford Railroad

The New York, New Haven and Hartford Railroad , was a railroad that operated in the northeast United States from 1872 to 1968 which served the states of Connecticut, New York, Rhode Island, and Massachusetts...

 line. Its south end is at Amtrak

Amtrak

The National Railroad Passenger Corporation, doing business as Amtrak , is a government-owned corporation that was organized on May 1, 1971, to provide intercity passenger train service in the United States. "Amtrak" is a portmanteau of the words "America" and "track". It is headquartered at Union...

's Northeast Corridor

Northeast Corridor

The Northeast Corridor is a fully electrified railway line owned primarily by Amtrak serving the Northeast megalopolis of the United States from Boston in the north, via New York to Washington, D.C. in the south, with branches serving other cities...

, over which CSX has trackage rights

Trackage rights

Trackage rights , running rights or running powers is an agreement whereby a railway company has the right to run its trains on tracks owned by another railway company....

 to reach the Middleboro Subdivision

Middleboro Subdivision

The Middleboro Subdivision is a railroad line owned by CSX Transportation in the U.S. state of Massachusetts. The line runs from Attleboro southeast to the beginning of the New Bedford Subdivision near Weir Village along a former New York, New Haven and Hartford Railroad line...

 at Attleboro and the Boston Subdivision

Boston Subdivision

The Boston Subdivision is a railroad line owned by CSX Transportation in the U.S. state of Massachusetts. The line runs from Boston west to near Springfield along a former New York Central Railroad line. Its east end is at Amtrak's Northeast Corridor at Back Bay Station, over which CSX has...

 in Boston (via the Dorchester Branch). Its north end is at the Boston Subdivision

Boston Subdivision

The Boston Subdivision is a railroad line owned by CSX Transportation in the U.S. state of Massachusetts. The line runs from Boston west to near Springfield along a former New York Central Railroad line. Its east end is at Amtrak's Northeast Corridor at Back Bay Station, over which CSX has...

; the Fitchburg Subdivision

Fitchburg Subdivision

The Fitchburg Subdivision is a railroad line owned by CSX Transportation in the U.S. state of Massachusetts. The line runs from Fitchburg southeast to Framingham along a former New York, New Haven and Hartford Railroad line...

 continues northwest from Framingham.

Special MBTA Commuter Rail

MBTA Commuter Rail

The MBTA Commuter Rail serves as the regional rail arm of the Massachusetts Bay Transportation Authority, in the United States. It is operated under contract by the Massachusetts Bay Commuter Railroad Company a joint partnership of Veolia Transportation, Bombardier Transportation and Alternate...

 trains to Foxboro

Foxboro (MBTA station)

Foxboro station on the MBTA Commuter Rail system is only used for special events, such as New England Patriots football games, at nearby Gillette Stadium. It lies on a freight line between Mansfield and Framingham, owned by CSX as their Framingham Subdivision...

 use the line between Mansfield and Walpole.

History

The entire line opened in 1869 as the Mansfield and Framingham Railroad

Mansfield and Framingham Railroad

The Mansfield and Framingham Railroad was a railroad in Massachusetts. It was incorporated in 1862 as the Foxborough Branch Railroad to provide a rail connection from Mansfield through Foxborough to Walpole...

. It became part of the NYNH&H and Conrail through leases, mergers, and takeovers, and was assigned to CSX in the 1999 breakup of Conrail.