A Commuter Rail train at Route 128
|System||Massachusetts Bay Transportation Authority|
Providence, Rhode Island
|Termini||Boston South Station
(Wickford Junction to RI/MA state line)
|Character||Elevated and surface-level|
|Line length||62.9 miles (South Station to T.F. Green)
4 miles (Stoughton branch)
|Track gauge||4 ft 8 1⁄2 in (1,435 mm)|
|Electrification||25kV 60Hz AC (only used by Amtrak trains)|
The Providence/Stoughton Line is a line of the MBTA Commuter Rail system running southwest from Boston, Massachusetts, USA. The main line was originally built by the Boston and Providence Rail Road, and now carries service between Boston and Wickford Junction in North Kingstown, Rhode Island. The Stoughton Branch, built as the Stoughton Branch Railroad, splits at Canton Junction and runs for two more stations to Stoughton, Massachusetts. An extension of the Providence section of the line to T. F. Green Airport and Wickford Junction opened in stages in 2010 and 2012, while an extension of the Stoughton Branch to New Bedford and Fall River is under construction.
On December 31, 1968 the recently-formed Penn Central bought the failing New York, New Haven and Hartford Railroad. The MBTA bought the section of the Providence-Boston line in Massachusetts, as well as many other lines including the Stoughton Branch, from Penn Central on January 27, 1973. On April 1, 1976 Conrail took over Penn Central and the commuter rail equipment was sold to the MBTA, though operation continued to be done by Conrail. Full subsidies by the MBTA for the Providence and Stoughton lines began on September 28, 1976, before which the Federal government helped. On March 31, 1977 the Greater Attleboro Taunton Regional Transit Authority and Rhode Island Department of Transportation began to subsidize service beyond the MBTA district, and Stoughton began to pay to keep its station open, that cost later going to the Brockton Area Transit Authority.
On November 3, 1979, the line was closed north of Readville for long-term reconstruction as part of the Southwest Corridor project. All trains began using what is now the Fairmount Line, and special shuttle trains connected South Station to Back Bay. The new line, rebuilt below grade with space for three tracks (the old one had been above grade with room for four tracks), opened on October 5, 1987. The Orange Line shares the corridor between Back Bay and Forest Hills.
On February 20, 1981, the MBTA stopped serving Rhode Island, as funding from the state had ended. Rush-hour service was restored on February 1, 1988. On 20 June 1990, a new stop opened in South Attleboro and most trains were extended to the station; regular Sunday service returned in 1992. Some off-peak weekday trains were extended to Providence starting on December 11, 2000. Weekend service to Providence resumed on July 29, 2006, and service to T.F. Green Airport started on December 6, 2010. Service was extended to Wickford Junction on April 23, 2012.
Ownership and financing 
As part of the 1988 Pilgrim Partnership Agreement, Rhode Island provides capital funding (including some of its federal formula funds) for MBTA expansion in the state. Massachusetts (through the MBTA) provides the operating subsidy for MBTA Commuter Rail service in return. Rhode Island also pays Amtrak to allow the MBTA to use its tracks.
As part of the South County Commuter Rail initiative, a 20-mile extension past Providence to T. F. Green Airport and Wickford Junction in Rhode Island is now fully open. The T. F. Green Airport part of the extension opened in December 2010, with Wickford Junction service beginning in April 2012.
A further 24-mile extension is under consideration by the Rhode Island Department of Transportation. Possible stops include Cranston and East Greenwich, and existing Amtrak stations in Kingston, Westerly as well as a possible revival of the Pawtucket/Central Falls Railroad Station. Rhode Island eventually plans to have its own statewide commuter service along the Northeast Corridor that would connect with MBTA service and an extension of Shore Line East. This would be the first commuter service to Westerly since the last state-sponsored train was run in December 1979. A passing siding (currently under construction) and new platforms (planned) at Kingston may enable extension of some trains there in the near term.
The Stoughton branch is currently being extended to Taunton, Fall River, and New Bedford under a project called South Coast Rail. Track has been bought from CSX, but construction has not yet begun on stations.
All stations but Sharon are handicapped accessible with short or full-length high level platforms. Newer stations like T.F. Green Airport, and Amtrak stations like Providence, usually have full-length high level platforms; older stations have mostly been retrofitted with high-level platforms one car length long. See also MBTA accessibility.
Station listing 
Main Line (Northeast Corridor) 
|State||Milepost||City||Station||Opening date||Connections and notes|
|MA||228.7||Boston||South Station||1899||Silver Line service to Logan Airport, Red Line, and all south side Commuter Rail lines
Amtrak Acela Express, Lake Shore Limited, and Northeast Regional
|227.6||Back Bay||1987 (modern station)||Orange Line
splits from Framingham/Worcester Line
Amtrak Acela Express, and Lake Shore Limited, and Northeast Regional
original line continued northeast from here to a terminal at Park Square
|226.5||Ruggles||October 5, 1987||MBTA Orange Line|
|223.7||Forest Hills||MBTA Orange Line; only served by Needham Line trains
Needham Line (old Dedham Branch) splits
|Mount Hope||closed November 2, 1979|
|220.3||Hyde Park||Hyde Park||October 5, 1987||temporarily closed November 2, 1979|
|219.2||Readville||only served by trains using the Fairmount Line
Franklin Line splits and Fairmount Line joins (both part of the Midland Railroad (NYNH&H))
split with Dedham Branch
|217.3||Westwood||Route 128||Amtrak Acela Express and Regional
originally Green Lodge
|213.9||Canton||Canton Junction||split with Stoughton Branch|
|Foxborough||East Foxboro||closed November 1977|
|204.0||Mansfield||Mansfield||junction with Boston, Clinton, Fitchburg and New Bedford Railroad (NYNH&H), now the line to Foxboro (special events)|
|196.9||Attleboro||Attleboro||junction with Attleborough Branch and Boston, Clinton, Fitchburg and New Bedford Railroad Attleborough Branch (NYNH&H)|
|194.4||East Junction||not a station||Junction with old main line to East Providence|
|191.9||South Attleboro||June 20, 1990|
|RI||190.0||Central Falls||Boston Switch||not a station||Junction with Providence and Worcester Railroad|
|188.5||Pawtucket||Pawtucket-Central Falls||closed February 19, 1981|
|Woodlawn||not a station||Junction with Moshassuck Valley Railroad|
|185.1||Providence||Providence||February 1, 1988||Amtrak Acela Express and Northeast Regional
temporarily closed February 19, 1981 (but still served by Amtrak)
|176.8||Warwick||T.F. Green Airport||December 6, 2010|
|165.8||North Kingstown||Wickford Junction||April 23, 2012
Closed stations on old southwest alignment:
Stoughton Branch 
|State||Milepost||City||Station||Opening date||Connections and notes|
(213.9 on NEC)
|Canton||Canton Junction||splits from Northeast Corridor|
|15.6 (0.6)||Canton Center|
|18.9 (3.9)||Stoughton||Stoughton||1888||continued as Easton Branch|
- "Ridership and Service Statistics". Massachusetts Bay Transportation Authority. 2010. Retrieved 2 October 2011.
- Belcher, Jonathan (20 July 2011). "Changes to Transit Service in the MBTA District". NETransit. Retrieved 2 October 2011.
- "COMMUTER RAIL SERVICE TO WARWICK’S T.F. GREEN STATION UNDERWAY". Massachusetts Bay Transportation Authority. 8 December 2010. Retrieved 2 October 2011.
- "South County Commuter Rail". Federal Transit Administration. 2011. Retrieved 2 October 2011.
- Bierman, Noah (10 September 2009). "Vote set on T link to R.I. airport". Boston Globe. Retrieved 2 October 2011.
- Samantha, Turner (4 November 2010). "Commuter Rail Station To Open In 2012". North Kingston Patch. Retrieved 2 October 2011.
- Edwards and Kelcey, Inc (July 2001). "South County Commuter Rail Service: Operations Plan". Rhode Island Department of Transportation. Retrieved 2 October 2011.
- "Intermodal Planning". Rhode Island Department of Transportation. Retrieved 3 August 2011.
- Barrett, Chris (31 December 2009). "Kingston MBTA stop project proposed". Providence Business News. Retrieved 8 April 2013.
- Held, Patrick R. (2010). "Massachusetts Bay Colony Railroad Track Charts". Johns Hopkins Association for Computing Machinery. Retrieved 2 February 2012.
- "South County Commuter Rail Environmental Assessment". Rhode Island Department of Transportation. February 2003. Retrieved 14 April 2012.
- Office of Safety Analysis. "Highway-Rail Crossing Inventory Data". Federal Railroad Administration.
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