The Boston and Providence Railroad was a railroad company in the states of Massachusetts and Rhode Island which connected its namesake cities. It opened in two sections in 1834 and 1835 - one of the first rail lines in the United States - with a more direct route into Providence built in 1847. Branches were built to Dedham in 1834, Stoughton in 1845, and North Attleboro in 1871. It was acquired by the Old Colony Railroad in 1888, which in turn was leased by the New Haven Railroad in 1893. The line became the New Haven's primary mainline to Boston; it was realigned in Boston in 1899 during the construction of South Station, and in Pawtucket and Central Falls in 1916 for grade crossing elimination.

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Boston and Providence Railroad

The Boston and Providence Railroad built the Canton Viaduct in 1835. Revere Copper Mill can be seen in the background
Overview
Headquarters	Boston, Massachusetts
Locale	Boston, Massachusetts to Providence, Rhode Island
Dates of operation	1834–1888
Successor	Old Colony Railroad
Technical
Track gauge	4 ft 8+1⁄2 in (1,435 mm) standard gauge
Length	41 miles (66 km)

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The line became part of the Penn Central system in 1969; the section in Massachusetts was purchased by the state in 1973, while Amtrak acquired the Rhode Island section in 1976. The line was electrified in 2000; it is now the far northern leg of Amtrak's Northeast Corridor, used by high-speed Acela Express service, intercity Northeast Regional service, and MBTA Commuter Rail Providence/Stoughton Line local service. The rapid transit MBTA Orange Line shares the right-of-way for several miles in the 1987-built Southwest Corridor section in Boston. The Stoughton Branch is also used for Providence/Stoughton Line service, and the northern section of the Dedham Branch is used by the Needham Line.

The Boston and Providence Railroad was incorporated June 21, 1831,^[1] and chartered to build a railroad between Boston and Providence, Rhode Island.^[2][3][4]

Construction began in late 1832. The first section, from Boston to Canton with a branch to Dedham, opened in 1834, and the rest on July 28, 1835 with the completion of the Canton Viaduct. Stations in Jamaica Plain allowed the development of one of the first commuter suburbs in America.^[5]

The line was originally single track. A second track was extended from Boston to Roxbury in 1839 and to Readville in 1845. Double track was built between Sharon and Mansfield in 1846–47; it was extended north to Readville in 1860 and south to Providence in 1865.^[6]: 31 In May 1869, the state legislature authorized the railroad to build a third track from Boston to Readville.^[7] It was completed as far as Forest Hills in late 1871, allowing for an increase in service.^[8][9] The section between Hyde Park and Readville was increased to four tracks in 1873; the third track was extended south from Forest Hills to Mount Hope later in the 1870s.^[10][11] It was completed between Mount Hope and Hyde Park in 1882, finishing triple-tracking between Boston and Readville.^[12]

In 1887, the railroad's Bussey Bridge collapsed while a morning commuter train was passing over it. The train was carrying about 300 passengers at the time, of which 24 died and 125 were seriously injured.^[13] Henry Austin Whitney was the president of the railroad at the time.^[14]

Until 1899, when South Station opened, the Boston terminal was at Park Square, with a crossing at grade of the Boston and Worcester Railroad at the current merge at Back Bay station (also opened in 1899, serving only the B&P). The original Providence terminal was at Fox Point, from which it ran east along the Seekonk River shore and over the river via the India Point Railroad Bridge into East Providence (then part of Seekonk, Massachusetts) before turning north towards Boston. A ferry across the Providence River connected Fox Point to the South Providence terminal of the New York, Providence and Boston Railroad (opened 1837). The former mainline became the primarily-freight East Junction Branch.^[15]

In 1847, the Providence and Worcester Railroad opened between downtown Providence and Worcester, Massachusetts. At the same time, the B&P built a connection west from its main line in southern Attleboro to the P&W in Central Falls. The B&P and P&W jointly owned the line south of Central Falls into downtown Providence. (In 1848, the NYP&B connected its line south of downtown Providence to downtown, removing the gap through Providence.)

On April 1, 1888, the Old Colony Railroad leased the B&P for 99 years.^[16][2] The New York, New Haven and Hartford Railroad leased the Old Colony on March 1, 1893, and assumed the lease.^[2] The New Haven used the B&P as part of its main Boston - New York City Shore Line.

When Boston's South Station opened in 1899, a new line was built along the south side of the Boston and Albany Railroad to it, near the B&A's terminal. The old line to Park Square was abandoned.

The East Side Railroad Tunnel opened in 1908 between the East Side of Providence, Rhode Island and downtown Providence. This provided a second route into Providence, using the old alignment to East Providence and the Crook Point Bascule Bridge over the Seekonk River leading to the tunnel. The tunnel is no longer in use, having been disconnected on the downtown side, with its entrance underneath the What Cheer Building, owned by RISD.

In 1939, the railroad filed with the Interstate Commerce Commission for reorganization in the New Haven rail system or operation as an independent line.^[17]

The Penn Central Transportation Company was created in 1968 through a merger that included the New York, New Haven and Hartford Railroad. The Penn Central bankruptcy in the early 1970s coincided with the creation of Amtrak. Penn Central merged the Boston and Providence Railroad into itself in 1972.

The New Haven's former B&P Boston-New York City main line was included with the former Pennsylvania Railroad's New York City-Washington, D.C. main line as a new high-speed passenger route for Amtrak, the Northeast Corridor. It hosts the Acela, the only high-speed rail service in North America.

In 1973, the MBTA purchased the portion of the B&P main line in Massachusetts, including the Stoughton Branch, forming what is now the Providence/Stoughton Line. The portion in Rhode Island was sold to Amtrak in 1976.