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The Pennsylvania Railroad (
reporting mark A reporting mark is a code used to identify owners or lessees of rolling stock and other equipment used on certain rail transport networks. The code typically reflects the name or identifying number of the owner, lessee, or operator of the equip ...
PRR), legal name The Pennsylvania Railroad Company also known as the "Pennsy", was an American Class I railroad that was established in 1846 and headquartered in
Philadelphia Philadelphia, often called Philly, is the largest city in the Commonwealth of Pennsylvania, the sixth-largest city in the U.S., the second-largest city in both the Northeast megalopolis and Mid-Atlantic regions after New York City. Since ...
,
Pennsylvania Pennsylvania (; ( Pennsylvania Dutch: )), officially the Commonwealth of Pennsylvania, is a state spanning the Mid-Atlantic, Northeastern, Appalachian, and Great Lakes regions of the United States. It borders Delaware to its southeast, ...
. It was named for the commonwealth in which it was established. By 1882, Pennsylvania Railroad had become the largest railroad (by traffic and revenue), the largest transportation enterprise, and the largest corporation in the world. Its budget was second only to the U.S. government. Over the years, it acquired, merged with, or owned part of at least 800 other rail lines and companies. At the end of 1926, it operated of rail line;This mileage includes companies independently operated. PRR miles of all tracks, which includes first (or main), second, third, fourth, and sidings, totalled 28,040.49 at the end of 1926. in the 1920s, it carried nearly three times the traffic as other railroads of comparable length, such as the Union Pacific and
Atchison, Topeka & Santa Fe The Atchison, Topeka and Santa Fe Railway , often referred to as the Santa Fe or AT&SF, was one of the larger railroads in the United States. The railroad was chartered in February 1859 to serve the cities of Atchison and Topeka, Kansas, and ...
railroads. Its only formidable rival was the
New York Central The New York Central Railroad was a railroad primarily operating in the Great Lakes and Mid-Atlantic regions of the United States. The railroad primarily connected greater New York and Boston in the east with Chicago and St. Louis in the Mid ...
(NYC), which carried around three-quarters of the Pennsy's ton-miles. In 1968, the Pennsylvania Railroad merged with its rival
New York Central Railroad The New York Central Railroad was a railroad primarily operating in the Great Lakes and Mid-Atlantic regions of the United States. The railroad primarily connected greater New York and Boston in the east with Chicago and St. Louis in the Mi ...
and the railroad eventually went by the name of Penn Central Transportation Company, or "Penn Central" for short. The former competitors’ networks integrated poorly with each other, and the railroad filed for bankruptcy within two years. Bankruptcy continued and on April 1, 1976, the railroad gave up its railroad assets, along with the assets of several other failing northeastern railroads, to a new railroad named Consolidated Rail Corporation, or Conrail for short. Conrail was itself purchased and split up in 1999 between the
Norfolk Southern Railway The Norfolk Southern Railway is a Class I freight railroad in the United States formed in 1982 with the merger of Norfolk and Western Railway and Southern Railway. With headquarters in Atlanta, the company operates 19,420 route miles (31 ...
and CSX Transportation, with Norfolk Southern getting 58 percent of the system, including nearly all of the remaining former Pennsylvania Railroad trackage.
Amtrak The National Railroad Passenger Corporation, doing business as Amtrak () , is the national passenger railroad company of the United States. It operates inter-city rail service in 46 of the 48 contiguous U.S. States and nine cities in Canada. ...
received the electrified segment of the Main Line east of Harrisburg. After 1976, the railroad eventually became an insurance company and now goes by the name of American Premier Underwriters and is now a subsidiary of
American Financial Group American Financial Group, Inc. is an American financial services holding company based in Cincinnati, Ohio. Its primary businesses are insurance and investments. Lines of business American Financial Group's major insurance division operates a ...
.


History


Beginnings

With the opening of the
Erie Canal The Erie Canal is a historic canal in upstate New York that runs east-west between the Hudson River and Lake Erie. Completed in 1825, the canal was the first navigable waterway connecting the Atlantic Ocean to the Great Lakes, vastly reducing ...
in 1825 and the beginnings of the Chesapeake and Ohio Canal in 1828, Philadelphia business interests became concerned that the port of Philadelphia would lose traffic. The state legislature was pressed to build a canal across Pennsylvania and thus the Main Line of Public Works was commissioned in 1826. It soon became evident that a single canal would not be practical and a series of railroads, inclined planes, and canals was proposed. The route consisted of the Philadelphia and Columbia Railroad, canals up the Susquehanna and Juniata rivers, an
inclined plane railroad Incline, inclined, inclining, or inclination may refer to: * Grade (slope), the tilt, steepness, or angle from horizontal of a topographic feature (hillside, meadow, etc.) or constructed element (road, railway, field, etc.) * Slope, the tilt, stee ...
called the Allegheny Portage Railroad, a tunnel across the
Allegheny Mountains The Allegheny Mountain Range (; also spelled Alleghany or Allegany), informally the Alleghenies, is part of the vast Appalachian Mountain Range of the Eastern United States and Canada and posed a significant barrier to land travel in less devel ...
, and canals down the Conemaugh and Allegheny rivers to Pittsburgh, Pennsylvania, on the Ohio River; it was completed in 1834. Because freight and passengers had to change conveyances several times along the route and canals froze in winter, it soon became apparent that the system was cumbersome and a better way was needed. There were two applications made to the Pennsylvania legislature in 1846. The first was for a new railroad called The Pennsylvania Railroad Company to build a line between
Harrisburg Harrisburg is the capital city of the Commonwealth of Pennsylvania, United States, and the county seat of Dauphin County. With a population of 50,135 as of the 2021 census, Harrisburg is the 9th largest city and 15th largest municipality in ...
and
Pittsburgh, Pennsylvania Pittsburgh ( ) is a city in the Commonwealth (U.S. state), Commonwealth of Pennsylvania, United States, and the county seat of Allegheny County, Pennsylvania, Allegheny County. It is the most populous city in both Allegheny County and Wester ...
. The second was the Baltimore and Ohio Railroad (B&O), which wanted to build to Pittsburgh from Cumberland, Maryland. Both applications were granted under conditions. If the Pennsylvania Railroad did not raise enough capital and contract to build enough railroad within a year, then the B&O bill would become effective and the Pennsy's void, thereby allowing the B&O to build into Pennsylvania and on to Pittsburgh. The Pennsylvania Railroad fulfilled the requirements and
Letters Patent Letters patent ( la, litterae patentes) ( always in the plural) are a type of legal instrument in the form of a published written order issued by a monarch, president or other head of state, generally granting an office, right, monopoly, tit ...
were issued by the Pennsylvania governor on February 25, 1847. The governor declared the B&O's rights void the following August.


Early years

In 1847, the Pennsy's directors chose J. Edgar Thomson, an engineer from the Georgia Railroad, to survey and construct the line. He chose a route that followed the west bank of the Susquehanna River northward to the confluence with the Juniata River, following its banks until the foothills of the Allegheny Mountains were reached at a point that would become Altoona, Pennsylvania. To traverse the mountains, the line would climb a moderate grade for until it reached a split of two mountain ravines which were cleverly crossed by building a fill and having the tracks ascend a 220-degree curve known as Horseshoe Curve that limited the grade to less than 2 percent. The crest of the mountain would be penetrated by the Gallitzin Tunnels, from which the route descended by a more moderate grade to Johnstown. The western end of the line was simultaneously built from Pittsburgh, eastward along the Allegheny and Conemaugh rivers to Johnstown, while the eastern end was built from Harrisburg to Altoona. In 1848, the Pennsy contracted with the Harrisburg, Portsmouth, Mountjoy and Lancaster Railroad (HPMtJ&L) to buy and use equipment over both roads, providing service from Harrisburg east to Lancaster. In 1851, tracks were completed between Pittsburgh and Johnstown. In 1852, a continuous railroad line ran between Philadelphia and Pittsburgh over the tracks of several entities including the Pennsylvania Railroad. In 1853, the Pennsy was granted trackage rights over the Philadelphia and Columbia, providing a connection between the two cities and connecting with the HPMtJ&L at Lancaster and Columbia. By 1854, the Pennsy completed its line from Harrisburg to Pittsburgh, eliminating the use of the inclined planes of the Allegheny Portage Railroad. In 1857, the PRR purchased the Main Line of Public Works from the state of Pennsylvania. This purchase included of canal, the Philadelphia & Columbia Railroad, and the New Portage Railroad (which replaced the now abandoned Allegheny Portage Railroad). The Pennsy abandoned most of the New Portage Railroad in 1857 as it was now redundant with the Pennsylvania Railroad's own line. In 1861, the Pennsy leased the HPMtJ&L to bring the entire stretch of road between Pittsburgh and Philadelphia under its control. The Johnstown to Pittsburgh stretch of canal was abandoned in 1865 and the rest of the canals sold to the Pennsylvania Canal Company in 1866. The main line was double track from its inception, and by the end of the century, a third and fourth track were added. Over the next 50 years, the Pennsy expanded by gaining control of other railroads by stock purchases and 999-year leases.In the years after the
American Civil War The American Civil War (April 12, 1861 – May 26, 1865; also known by Names of the American Civil War, other names) was a civil war in the United States. It was fought between the Union (American Civil War), Union ("the North") and t ...
, railroad leases were a common arrangement: a railroad contemplating an expansion, but reluctant to assume new risks or finance construction itself, would form a new railroad company or acquire a controlling interest in an existing company, lease the new railroad to itself (the "parent" railroad), and sell stock in the new corporation if necessary. The new line was frequently operated as if it was an integral part of the parent company. See John F. Meck, Jr., and John E. Masten,
Railroad Leases and Reorganization: I
", Yale Law Journal 49:626-659, (1940) pp. 630-31.
At the end of its first year of operation, the Pennsylvania Railroad paid a dividend, and continued the dividend without interruption until 1946.


Expansion

The Pennsy's charter was supplemented on March 23, 1853, to allow it to purchase stock and guarantee bonds of railroads in other states, up to a percentage of its capital stock. Several lines were then aided by the Pennsy in hopes to secure additional traffic. By the end of 1854, the Pennsy purchased stock in the Ohio & Pennsylvania, Ohio & Indiana, Marietta & Cincinnati, Maysville & Big Sandy, and Springfield, Mt. Vernon & Pittsburgh railroads, totalling $1,450,000 (equivalent to $ in ). The Steubenville & Indiana was assisted by the Pennsy in the form of a guarantee of $500,000 worth of bonds. In 1856, a controlling interest was purchased in the Cumberland Valley Railroad and the Pennsy constructed additional lines in Philadelphia. In 1857, the aforementioned Main Line of Public Works was purchased for $7,500,000 ($ in ).


Empire Transportation Company

The Empire Transportation Company was founded in 1865 by Joseph D. Potts and became a multimodal freight transportation subsidiary of the Pennsylvania Railroad. It owned oil tanker cars and used them to transport refined oil for mostly independent oil refiners during the era of John D. Rockefeller's and Standard Oil's oil refinery mergers of the 1870s. The company also owned grain freight boats on the Great Lakes and oil pipelines in the oil regions of Pennsylvania. When the company attempted to buy and build some oil refineries in 1877, Standard Oil bought the company.


Penn Central merger, Conrail and today

The controlling, non-institutional shareholders of the PRR during the early 1960s were
Henry Stryker Taylor :''This article concerns John Whitfield Bunn, Jacob Bunn, and the entrepreneurs who were interconnected with the Bunn brothers through association or familial and genealogical connection.'' John Whitfield Bunn (June 21, 1831 – June 7, 1920)Ill ...
, who was a part of the
Jacob Bunn :''This article concerns John Whitfield Bunn, Jacob Bunn, and the entrepreneurs who were interconnected with the Bunn brothers through association or familial and genealogical connection.'' John Whitfield Bunn (June 21, 1831 – June 7, 1920)Ill ...
business dynasty of Illinois, and Howard Butcher III, a principal in the Philadelphia brokerage house of Butcher & Sherrerd (later Butcher & Singer). On February 1, 1968, the Pennsylvania Railroad merged with its longtime arch-rival, the New York Central Railroad. The Pennsylvania Railroad absorbed the New York Central and eventually went by the name of Penn Central Transportation Company. The
Interstate Commerce Commission The Interstate Commerce Commission (ICC) was a regulatory agency in the United States created by the Interstate Commerce Act of 1887. The agency's original purpose was to regulate railroads (and later trucking) to ensure fair rates, to elimina ...
(ICC) required that the ailing
New York, New Haven & Hartford Railroad The New York, New Haven and Hartford Railroad , commonly known as The Consolidated, or simply as the New Haven, was a railroad that operated in the New England region of the United States from 1872 to December 31, 1968. Founded by the merger of ...
(NH) be added in 1969. A series of events including inflation, poor management, abnormally harsh weather, and the withdrawal of a government-guaranteed $200 million operating loan forced Penn Central to file for bankruptcy protection on June 21, 1970. In May 1971, passenger operations, including equipment, were transferred to a new government-subsidized company called the National Railroad Passenger Corporation, or
Amtrak The National Railroad Passenger Corporation, doing business as Amtrak () , is the national passenger railroad company of the United States. It operates inter-city rail service in 46 of the 48 contiguous U.S. States and nine cities in Canada. ...
. This was devised to relieve the Penn Central (and other railroads) of money-losing passenger service. Penn Central rail lines, including ex-Pennsy lines, were transferred to Conrail in 1976, and eventually Amtrak received the
Northeast Corridor The Northeast Corridor (NEC) is an electrified railroad line in the Northeast megalopolis of the United States. Owned primarily by Amtrak, it runs from Boston through Providence, New Haven, Stamford, New York City, Philadelphia, Wilmington, ...
and Keystone Corridor lines. After Conrail was divided between the
Norfolk Southern Railway The Norfolk Southern Railway is a Class I freight railroad in the United States formed in 1982 with the merger of Norfolk and Western Railway and Southern Railway. With headquarters in Atlanta, the company operates 19,420 route miles (31 ...
and CSX Transportation, most of the former Pennsy's remaining trackage went to Norfolk Southern. The few parts of the Pennsylvania Railroad that went to CSX after the Conrail split were (1) the western end of the Fort Wayne Line across western Ohio and northern Indiana, (2) the Pope's Creek Secondary in Maryland, just to the east of Washington, (3) the Landover Subdivision, a former Pennsy freight line in DC which connects to Amtrak's ex-Pennsy Northeast Corridor and CSX's ex-B&O
Alexandria Extension The Alexandria Extension is a short rail line in Washington, D.C. and Prince George's County, Maryland. Its northern portion connects the Capital Subdivision to the RF&P Subdivision, allowing freight trains to avoid Downtown Washington. Its so ...
on the north end and CSX's RF&P Subdivision on the south end via the ex-Pennsy " Long Bridge" across the Potomac River, and (4) the Terre Haute, Indiana-to-East St. Louis, Illinois segment of the St. Louis main line (the segment east of Terre Haute is former-New York Central). The Pennsylvania Railroad still exists, but has since switched to an insurance company and now goes by the name American Premier Underwriters and currently serves as a subsidiary of
American Financial Group American Financial Group, Inc. is an American financial services holding company based in Cincinnati, Ohio. Its primary businesses are insurance and investments. Lines of business American Financial Group's major insurance division operates a ...
.


Timeline

* 1846: The Pennsylvania Railroad Company is chartered to construct a rail line from Harrisburg to Pittsburgh, Pennsylvania. *1850s: Renamed as the Pennsylvania Central Railway. * 1850: Construction begins on Altoona Works repair shop at Altoona, Pennsylvania. * 1857: The Main Line of Public Works of Pennsylvania purchased. * 1865: First US railroad to use steel rails. * 1868: The Pittsburgh, Cincinnati and St. Louis Railway is formed and controlled by the Pennsy. * 1869: Leases the Pittsburgh, Fort Wayne and Chicago Railway, formally giving it control of a direct route into the heart of the Midwestern United States and Chicago, Illinois. * 1870: "Pennsylvania Central" is split into lines east (renamed Pennsylvania Railroad) and lines west
Pennsylvania Company The Pennsylvania Company, later known publicly as the Pennsylvania Lines (west of Pittsburgh) was a major holding company. It included the Pittsburgh, Fort Wayne and Chicago Railway, the PRR's main route to Chicago. It also owned but did not opera ...
is formed to hold securities from companies West of Pittsburgh; Use of track pans begins on PRR at Sang Hollow, Pennsylvania; Pennsy reaches Cincinnati, Ohio, with lease of Little Miami and St. Louis, Missouri, with control of the St. Louis, Vandalia & Terre Haute. * 1871: Pennsylvania Railroad reaches Jersey City, New Jersey, and the New York City area via lease of the United New Jersey Railroad and Canal Company. * 1872: Air-brakes first used on the Pennsylvania Railroad. * 1873: Pennsy reaches Washington, D.C., via the Baltimore & Potomac Railroad. * 1877:
Thomas A. Watson Thomas Augustus Watson (January 18, 1854 – December 13, 1934) was an assistant to Alexander Graham Bell, notably in the invention of the telephone in 1876. Life and work Born in Salem, Massachusetts, United States Watson was a bookkeeper an ...
demonstrates telephone to PRR officials at Altoona; Pittsburgh Riots destroys property of Pennsylvania Railroad at Pittsburgh, Pennsylvania. * 1881: Pennsy purchases control of Philadelphia, Wilmington, and Baltimore Railroad thereby providing a direct route between Philadelphia, Baltimore, and Washington, D.C., access to Delmarva Peninsula; Broad Street Station opens. * 1885: The ''Congressional Limited Express'' from New York to Washington is introduced. * 1887: ''Pennsylvania Limited'' service begins between New York and Chicago; first vestibuled train. * 1900: The Pennsy gains access to Buffalo, New York, via lease of Western New York & Pennsylvania. * 1902: ''Pennsylvania Special'' service begins between New York and Chicago replacing the ''Pennsylvania Limited''. * 1906: An accident in Atlantic City kills 53 people. * 1907: Union Station in Washington, D.C., completed. * 1910: Completion of the North River Tunnels under the Hudson River, providing direct service from New Jersey to Manhattan on electrified lines, terminating at the massive new Penn Station. * 1912: The second vice-president of the PRR,
John B. Thayer John Borland Thayer II (April 21, 1862April 15, 1912) was an American businessman who had a thirty-year career as an executive with the Pennsylvania Railroad, Pennsylvania Railroad Company. He was a director and second vice-president of the comp ...
, died in the sinking of at age of 49. * 1912: ''Broadway Limited'' was inaugurated, replacing the ''Pennsylvania Special''. * 1915: The Pennsylvania electrifies its suburban Philadelphia lines to Paoli, Pennsylvania; PRR Position-Light signals first used, between Overbrook and Bryn Mawr, Pennsylvania. * 1916: The Pennsy adopts new motto, "Standard Railroad of the World"; The first I1s Decapod locomotive is completed, and switching locomotives of the A5s and B6sb class are introduced. * 1917: Completion of the New York Connecting Railroad and the Hell Gate Bridge speed access to the New England states. * 1918: Pennsy stock bottoms at $40¼ (equal to $ today), the lowest since 1877, due largely to Federal railroad control; Emergency freight is routed through New York Penn Station and the Hudson River tunnels by the USRA to relieve congestion; The Pennsy electrifies suburban commuter line to Chestnut Hill, PA. * 1925: Chicago Union Station opens. * 1928–1938: The Pennsylvania electrifies its New York—Washington, D.C., and Chicago—Philadelphia lines between Harrisburg and Paoli, several Philadelphia and New York area commuter lines, and major through freight lines. * 1937: Pennsy acquires its first diesel, a model SW switcher engine from Electro-Motive Corporation. * 1943: An accident at Frankford Junction, Pennsylvania, kills 79. * 1946: The Pennsylvania Railroad reported a net loss for the first time in its history. * 1951: An accident in Woodbridge, New Jersey, kills 85 people. * 1957: Steam locomotives are removed from active service in the PRR fleet; Merger talks begin with the New York Central Railroad. * 1968: The PRR absorbs NYC and eventually changes its name to Penn Central Transportation Company (PC).


Presidents


J. Edgar Thomson

Thomson (1808–1874) was the entrepreneur who led the Pennsylvania Railroad from 1852 until his death in 1874, making it the largest business enterprise in the world and a world-class model for technological and managerial innovation. He served as the Pennsy's first Chief Engineer and third President. Thomson's sober, technical, methodical, and non-ideological personality had an important influence on the Pennsylvania Railroad, which in the mid-19th century was on the technical cutting edge of rail development, while nonetheless reflecting Thomson's personality in its conservatism and its steady growth while avoiding financial risks. His Pennsylvania Railroad was in his day the largest railroad in the world, with 6,000 miles of track, and was famous for steady financial dividends, high quality construction, constantly improving equipment, technological advances (such as replacing wood fuel with coal), and innovation in management techniques for a large complex organization. The railroad's other presidents were: * Samuel V. Merrick, (March 31, 1847 – September 1, 1849) * William C. Patterson, (September 1, 1849 – February 2, 1852) *
John Edgar Thomson John Edgar Thomson (February 10, 1808 – May 27, 1874) was an American civil engineer and industrialist. An entrepreneur best known for his leadership of the Pennsylvania Railroad (PRR) from 1852 until his death in 1874, Thomson made it the large ...
, (February 3, 1852 – May 27, 1874) *
Thomas A. Scott Thomas Alexander Scott (December 28, 1823 – May 21, 1881) was an American businessman, railroad executive, and industrialist. In 1861, President Abraham Lincoln appointed him to serve as U.S. Assistant Secretary of War, and during the America ...
, (June 3, 1874 – June 1, 1880) * George B. Roberts, (June 1, 1880 – January 30, 1897) * Frank Thomson (February 3, 1897 – June 5, 1899) * Alexander J. Cassatt (June 9, 1899 – December 28, 1906) * James McCrea (January 2, 1907 – January 1, 1913) * Samuel Rea (January 1, 1913 – October 1, 1925) * William W. Atterbury (October 1, 1925 – April 24, 1935) * Martin W. Clement (April 24, 1935 – June 16, 1949) * Walter S. Franklin (June 16, 1949 – May 31, 1954) * James M. Symes (May 31, 1954 – November 1, 1959) * Allen J. Greenough (November 1, 1959 – January 31, 1968) The Pennsylvania Railroad's board chairman/CEOs were: * Martin W. Clement (June 16, 1949 – December 31, 1951) * James M. Symes (November 1, 1959 – October 1, 1963) *
Stuart T. Saunders Stuart Thomas Saunders, Sr. (July 16, 1909 – February 7, 1987) was an American railroad executive best known for his tenure with Penn Central. Biography Saunders was born in McDowell, West Virginia, and reared near Bedford, Virginia. He gradu ...
(October 1, 1963 – January 31, 1968)


Major routes


Main Line

The Pennsy's main line extended from Philadelphia to Pittsburgh, Pennsylvania.


New York, Philadelphia, Baltimore, and Washington lines

In 1861, the Pennsylvania Railroad gained control of the Northern Central Railway, giving it access to
Baltimore, Maryland Baltimore ( , locally: or ) is the most populous city in the U.S. state of Maryland, fourth most populous city in the Mid-Atlantic, and the 30th most populous city in the United States with a population of 585,708 in 2020. Baltimore wa ...
, and points along the Susquehanna River via connections at Columbia, Pennsylvania, or Harrisburg, Pennsylvania. On December 1, 1871, the Pennsy leased the United New Jersey Railroad and Canal Company, which included the original Camden and Amboy Railroad from Camden, New Jersey (across the Delaware River from Philadelphia) to South Amboy, New Jersey (across Raritan Bay from New York City), as well as a newer line from Philadelphia to Jersey City, New Jersey, much closer to New York, via Trenton, New Jersey. Track connection in Philadelphia was made via the Pennsy's Connecting Railway and the jointly owned Junction Railroad. The Pennsy's
Baltimore and Potomac Rail Road The Baltimore and Potomac Railroad (B&P) operated from Baltimore, Maryland, southwest to Washington, D.C., from 1872 to 1902. Controlled by the Pennsylvania Railroad, it was the second railroad company to connect the nation's capital to the Nort ...
opened on July 2, 1872, between Baltimore and Washington, D.C. This route required transfer via horse car in Baltimore to the other lines heading north from the city. On June 29, 1873, the
Baltimore and Potomac Tunnel The Baltimore and Potomac Tunnel (or B&P Tunnel) is a double-tracked, masonry arch railroad tunnel on the Northeast Corridor in Baltimore, Maryland, just south of Pennsylvania Station. Opened in 1873, the tunnel is used by about 140 Amtrak and M ...
through Baltimore was completed. The Pennsylvania Railroad started the Pennsylvania Air Line service ("air line" at the time being understood as a nearly-straight and nearly-flat route with distance similar to "as the crow flies") via the Northern Central Railway and Columbia, Pennsylvania. This service was longer than the old route but avoided the transfer in Baltimore. The Union Railroad line opened on July 24, 1873. This route eliminated the transfer in Baltimore. Pennsy officials contracted with both the Union Railroad and the
Philadelphia, Wilmington and Baltimore Railroad The Philadelphia, Wilmington and Baltimore Railroad (PW&B) was an American railroad that operated independently from 1836 to 1881. It was formed in 1836 by the merger of four state-chartered railroads in three Middle Atlantic states to create a ...
(PW&B) for access to this line. The Pennsy's New York–Washington trains began using the route the next day, ending Pennsylvania Air Line service. In the early 1880s, the Pennsylvania acquired a majority of PW&B Railroad's stock. This action forced the Baltimore and Ohio Railroad (B&O) to build the
Baltimore and Philadelphia Railroad The Baltimore and Philadelphia Railroad was a railroad line built by the Baltimore and Ohio Railroad (B&O) from Philadelphia, Pennsylvania, to the Maryland-Delaware state line, where it connected with the B&O's Philadelphia Branch to reach Baltimor ...
to keep its Philadelphia access, where it connected with the Reading Railroad for its competing Royal Blue Line passenger trains to reach New York. In 1885, the PRR began passenger train service from New York City via Philadelphia to Washington with limited stops along the route. This service became known as the "Congressional Limited Express." The service expanded, and by the 1920s, the Pennsy was operating hourly passenger train service between New York, Philadelphia and Washington. In 1952, 18-car stainless steel streamliners were introduced on the ''Morning Congressional'' and ''Afternoon Congressional'' between New York and Washington, as well as the ''Senator'' from Boston to Washington.


New York-Chicago

On July 1, 1869, the Pennsylvania Railroad leased the Pittsburgh, Fort Wayne and Chicago Railway (PFtW&C) in which it had previously been an investor. The lease gave the Pennsy complete control of that line's direct route through northern Ohio and Indiana as well as entry into the emerging rail hub city of
Chicago, Illinois (''City in a Garden''); I Will , image_map = , map_caption = Interactive Map of Chicago , coordinates = , coordinates_footnotes = , subdivision_type = Country , subdivision_name ...
. Acquisitions along the PFtW&C: Erie and Pittsburgh Railroad, Cleveland and Pittsburgh Railroad, Toledo, Columbus and Ohio River Railroad, and Pittsburgh, Youngstown and Ashtabula Railway gave the Pennsy access to the iron ore traffic on Lake Erie. On June 15, 1887, the ''Pennsylvania Limited'' began running between New York and Chicago. This was also the introduction of the vestibule, an enclosed platform at the end of each passenger car, allowing protected access to the entire train. In 1902 the ''Pennsylvania Limited'' was replaced by the ''Pennsylvania Special'' which in turn was replaced in 1912 by the ''
Broadway Limited The ''Broadway Limited'' was a passenger train operated by the Pennsylvania Railroad (PRR) between New York City and Chicago. It operated from 1912 to 1995. It was the Pennsylvania's premier train, competing directly with the New York Central ...
'' which became the most famous train operated by the Pennsylvania Railroad. This train ran from New York City to Chicago, via Philadelphia, with an additional section between Harrisburg and Washington (later operated as a separate Washington–Chicago train, the ''Liberty Limited'').


New York-St. Louis

In 1890, the Pennsylvania Railroad gained control of the
Pittsburgh, Cincinnati, Chicago and St. Louis Railroad The Pittsburgh, Cincinnati, Chicago and St. Louis Railroad, commonly called the Pan Handle Route (Panhandle Route in later days), was a railroad that was part of the Pennsylvania Railroad system. Its common name came from its main line, whic ...
(PCC&StL), itself the merged product of numerous smaller lines in Ohio, Indiana, and Illinois. Commonly called the Panhandle Route, this line ran west from Pittsburgh to
Bradford, Ohio Bradford is a village in Darke and Miami counties in the U.S. state of Ohio. The population was 1,842 at the 2010 census. The Miami County portion of Bradford is part of the Dayton Metropolitan Statistical Area, while the Darke County portion i ...
, where it split, with one line to Chicago and the other to East St. Louis, Illinois, via
Indianapolis, Indiana Indianapolis (), colloquially known as Indy, is the state capital and most populous city of the U.S. state of Indiana and the seat of Marion County. According to the U.S. Census Bureau, the consolidated population of Indianapolis and Mar ...
. In 1905, the acquisition of the Vandalia Railroad gave the Pennsy access across the Mississippi River to St. Louis, Missouri. Double-tracked for much of its length, the line served the coal region of southern Illinois and as a passenger route for the Pennsylvania Railroad's Blue Ribbon named trains ''The St. Louisan'', '' The Jeffersonian'', and the '' Spirit of St. Louis''.


"Low-grade" lines

By 1906, the Pennsylvania built several low-grade lines for freight to bypass areas of steep grade (slope) and avoid congestion. These included: *1871: The Western Pennsylvania Railroad completed its line from Blairsville to
Allegheny City, Pennsylvania Allegheny City was a municipality that existed in the U.S. state of Pennsylvania from 1788 until it was annexed by Pittsburgh in 1907. It was located north across the Allegheny River from downtown Pittsburgh, with its southwest border formed by ...
, and a connection with the Pittsburgh, Fort Wayne & Chicago *1874: The low-grade line of the Allegheny Valley Railroad from
Driftwood __NOTOC__ Driftwood is wood that has been washed onto a shore or beach of a sea, lake, or river by the action of winds, tides or waves. In some waterfront areas, driftwood is a major nuisance. However, the driftwood provides shelter and fo ...
to Red Bank, Pennsylvania *1877: The
Port Perry Branch The Port Perry Branch is a rail line owned and operated by the Norfolk Southern Railway in the U.S. state of Pennsylvania. The line runs from the Pittsburgh Line in North Versailles Township southwest through the Port Perry Tunnel and across the ...
connecting the main line to Pennsylvania Railroad's
Pittsburgh, Virginia and Charleston Railway The Pittsburgh, Virginia and Charleston Railway was a predecessor of the Pennsylvania Railroad in the U.S. state of Pennsylvania. By 1905, when it was merged into the Pennsylvania, it owned a main line along the left (west) side of the Monongahela ...
near Pittsburgh *1890: The Ohio Connecting Railway is built by the Pennsylvania Railroad, providing a low-grade bypass around Pittsburgh via the Panhandle Route, PV&C, and Port Perry Branch (and via the Brilliant Cutoff and the Duff/Scully Branch at later dates) *1892: The Trenton Branch and Trenton Cut-Off Railroad from Glen Loch, Pennsylvania, east to Morrisville, Pennsylvania (not only a low-grade line but a long-distance shortcut and bypass of Philadelphia) *1904: Reopening of the New Portage Railroad from the Gallitzin Tunnel, east to New Portage Junction, then continuing north over the Hollidaysburg Branch to Altoona, or bypassing Altoona and continuing on the Petersburg Branch to Petersburg *1904: The Brilliant Cutoff between the main line and the Allegheny Valley Railway and
Conemaugh Line The Conemaugh Line is a rail line owned and operated by the Norfolk Southern Railway in the U.S. state of Pennsylvania. The line runs from Conpit Junction, Pennsylvania (west of New Florence) northwest and southwest to Pittsburgh, following the ...
*1905: The Scully Branch providing via a low-grade bypass on the Panhandle Route along Chartiers Creek *1906: Philadelphia and Thorndale Branch from Thorndale, Pennsylvania, east to Glen Loch Abandoned by Conrail in 1989. *1906: Atglen and Susquehanna Branch from Harrisburg via the Northern Central Railway, south to Wago Junction, then east to Parkesburg, Pennsylvania.The latter abandoned by Conrail in 1990. Some other lines were planned, but never completed: * The Pennsylvania and Newark Railroad was incorporated in 1905 to build a low-grade line from Morrisville, Pennsylvania, to Colonia, New Jersey. It was never completed, but some work was done in the Trenton area, including bridge piers in the Delaware River. North of Colonia, the alignment was going to be separate, but instead two extra tracks were added to the existing line. Work was suspended in 1916. * A low-grade line was planned between Radebaugh (near Greensburg) and Derry, Pennsylvania. Work was begun on this line, but it was never completed. * A low-grade route across the
Allegheny Mountains The Allegheny Mountain Range (; also spelled Alleghany or Allegany), informally the Alleghenies, is part of the vast Appalachian Mountain Range of the Eastern United States and Canada and posed a significant barrier to land travel in less devel ...
of Pennsylvania, bypassing the congestion at Pittsburgh, was contemplated but never built. It would have used existing segments of the Northern Central Railway,
Philadelphia and Erie Railroad The Philadelphia and Erie Railroad was a railroad that operated in the U.S. state of Pennsylvania between 1861 and 1907. It was subsequently merged into the Pennsylvania Railroad (PRR). History The Sunbury and Erie Railroad Company (also known a ...
, and Allegheny Valley Railway's Low Grade Division. Then, new construction would have connected from Red Bank to the
Fort Wayne Line The Fort Wayne Line and Fort Wayne Secondary is a rail line owned and operated by the Norfolk Southern Railway (NS), Chicago, Fort Wayne and Eastern Railroad (CFE), and CSX Transportation in Pennsylvania, Ohio, and Indiana. The line runs from ...
at Enon. The Western Allegheny Railroad later ran over a route similar to the envisioned new line, and was for a time owned by the Pennsylvania Railroad, which, it seems, purchased it for this planned bypass.


Electrification

Early in the 20th century, the Pennsy tried
electric power Electric power is the rate at which electrical energy is transferred by an electric circuit. The SI unit of power is the watt, one joule per second. Standard prefixes apply to watts as with other SI units: thousands, millions and billions ...
for its trains. Its first effort was in the New York terminal area, where tunnels and a city law restricting the burning of coal precluded steam locomotives. In 1910, the railroad began operating a
direct current Direct current (DC) is one-directional flow of electric charge. An electrochemical cell is a prime example of DC power. Direct current may flow through a conductor such as a wire, but can also flow through semiconductors, insulators, or ev ...
(DC) 650-volt system whose third-rail powered Pennsy locomotives (and LIRR passenger cars) used to enter Penn Station in New York City via the Hudson River tunnels. The next area to be electrified was the Philadelphia terminal area, where Pennsy officials decided to use
overhead lines An overhead line or overhead wire is an electrical cable that is used to transmit electrical energy to electric locomotives, trolleybuses or trams. It is known variously as: * Overhead catenary * Overhead contact system (OCS) * Overhead equipment ...
to supply power to the suburban trains running out of Broad Street Station. Unlike the New York terminal system, overhead wires would carry 11,000-volt 25-Hertz
alternating current Alternating current (AC) is an electric current which periodically reverses direction and changes its magnitude continuously with time in contrast to direct current (DC) which flows only in one direction. Alternating current is the form in whic ...
(AC) power, which became the standard for future installations. On September 12, 1915, electrification of the line from Philadelphia to Paoli, Pennsylvania, was completed. Other Philadelphia lines electrified were the Chestnut Hill Branch (March 30, 1918), White Marsh (1924), the main line to
Wilmington, Delaware Wilmington (Unami language, Lenape: ''Paxahakink /'' ''Pakehakink)'' is the largest city in the U.S. state of Delaware. The city was built on the site of Fort Christina, the first Swedish colonization of the Americas, Swedish settlement in North ...
(September 30, 1928), West Chester (December 2, 1928),
Trenton line The Trenton Line is a route of the SEPTA Regional Rail ( commuter rail) system. The route serves the northeastern suburbs of Philadelphia, Pennsylvania with service in Bucks County along the Delaware River to Trenton, New Jersey. Route Trento ...
(June 29, 1930), and completed on July 20, 1930 the Schuylkill Branch to Norristown, Pennsylvania, later followed by the rest of the main line to Trenton, New Jersey. In 1928, PRR's president William Wallace Atterbury announced plans to electrify the lines between New York, Philadelphia, Washington, and Harrisburg. In January 1933, through main-line service between New York and Philadelphia/Wilmington/Paoli was placed in operation. The first test run of an electric train between Philadelphia and Washington occurred on January 28, 1935. On February 1 the ''Congressional Limited''s in both directions were the first trains in regular electric operation between New York and Washington, drawn by the first of the GG1-type locomotives. In 1934, the Pennsylvania received a $77 million loan from the
New Deal The New Deal was a series of programs, public work projects, financial reforms, and regulations enacted by President Franklin D. Roosevelt in the United States between 1933 and 1939. Major federal programs agencies included the Civilian Con ...
's Public Works Administration to complete the electrification project begun in 1928. Work was started January 27, 1937, on the main line from Paoli to Harrisburg; the low-grade freight line from Morrisville through Columbia to Enola Yard in Pennsylvania; the Port Road Branch from Perryville, Maryland, to Columbia; the Jamesburg Branch and Amboy Secondary freight line from Monmouth Junction to South Amboy; and the Landover-South End freight line from Landover, Maryland, through Washington to Potomac Yard in Alexandria, Virginia. Now called the Landover Subdivision and RF&P Subdivision of CSX. In less than a year, on January 15, 1938, the first passenger train, the ''Metropolitan,'' went into operation over the newly electrified line from Philadelphia to Harrisburg. On April 15, the electrified freight service from Harrisburg and Enola Yard east was inaugurated, thus completing the Pennsy's eastern seaboard electrification program. The railroad had electrified of its track, representing 41% of the country's electrically operated standard railroad trackage. Portions of the electrified trackage are still in use, owned and operated by Amtrak as the Northeast Corridor and Keystone Corridor high-speed rail routes, by
SEPTA The Southeastern Pennsylvania Transportation Authority (SEPTA) is a regional public transportation authority that operates bus, rapid transit, commuter rail, light rail, and electric trolleybus services for nearly 4 million people in five c ...
, and by NJ Transit.


Equipment

The Pennsylvania Railroad's corporate symbol was the keystone, the Commonwealth of Pennsylvania's state symbol, with the letters "PRR" intertwined inside. When colored, it was bright red with a silver-grey inline and lettering.


Freight cars

The Pennsylvania Railroad bought its first 75 freight cars in 1849. Two years later, the Pennsy owned 439 freight cars. By 1857, it had 1,861 cars, and in 1866, 9,379 cars. Freight equipment was either acquired new from builders or built by the railroad itself. The Pennsy acquired more cars from the railroads it absorbed. In some instances, privately owned cars were either purchased from a builder or railroad acquisition. One such example was the 1877 purchase of Empire Transportation merchandise and oil cars. By the mid-1860s, the railroad had 9,379 freight cars; a decade later, 32,718; the mid-1880s, over 49,000; 1896, more than 87,000. The Pennsy changed its car reporting methods around 1900. The railroads owned and operated by the Pennsylvania Railroad system were now included in reports, in addition to the Pennsylvania Railroad proper. So, in 1900, the Pennsy had over 180,000 freight cars; by 1910, 263,039. The zenith of freight car ownership was reached in 1919 when the Pennsy owned a reported 282,729 freight cars. Steel in freight car construction began during the later part of the 19th century, when cars were now being built with a steel underframe and wooden bodies or were all steel. The Pennsy steadily replaced their wooden cars with steel versions until there were no more wooden cars by 1934. During the first quarter of the 20th century, the average capacity of a Pennsylvania Railroad freight car increased from . This increased to in the mid-1930s and then to in 1945. By the start of 1946, the Pennsy's freight car ownership decreased to 240,293 cars and in 1963, down to 140,535. The Pennsylvania Railroad used a classification system for their freight cars. Similar to their locomotives, the Pennsy used a letter system to designate the various types and sub-types of freight and maintenance cars.


Paint schemes

As noted, Pennsy colors and paint schemes were standardized. Locomotives were painted in a shade of green so dark it seemed almost black. The official name for this color was DGLE (Dark Green Locomotive Enamel), though often referred to as "Brunswick Green." The undercarriage of the locomotives were painted in black, referred to as "True Black." The
passenger car A car or automobile is a motor vehicle with wheels. Most definitions of ''cars'' say that they run primarily on roads, seat one to eight people, have four wheels, and mainly transport people instead of goods. The year 1886 is regarded as t ...
s of the Pennsy were painted Tuscan Red, a brick-colored shade of red. Some electric locomotives and most passenger-hauling diesel locomotives were also painted in Tuscan Red. Freight cars of the Pennsy had their own color, known as "Freight Car Color," an iron-oxide shade of red. On passenger locomotives and cars, the lettering and outlining was originally done in real gold leaf. After World War II, the lettering was done in a light shade of gold, called Buff Yellow.


Locomotives


Steam

For most of its existence, the Pennsylvania Railroad was conservative in its locomotive choices and pursued standardization, both in locomotive types and their component parts. Almost alone among U.S. railroads, the Pennsy designed most of its steam locomotive classes itself. It built most of them at
Altoona Works Altoona Works (also known as Altoona Terminal) is a large railroad industrial complex in Altoona, Pennsylvania. It was built between 1850 and 1925 by the Pennsylvania Railroad (PRR), to supply the railroad with locomotives, railroad cars and rela ...
, outsourcing only when Pennsy facilities could not keep up with the railroad's needs. In such cases, subcontractors were hired to build to PRR designs, unlike most railroads that ordered to broad specifications and left most design choices to the builder. The Pennsy's favorite, outsourced locomotive builder was
Baldwin Locomotive Works The Baldwin Locomotive Works (BLW) was an American manufacturer of railroad locomotives from 1825 to 1951. Originally located in Philadelphia, it moved to nearby Eddystone, Pennsylvania, in the early 20th century. The company was for decades ...
, which received its raw materials and shipped out its finished products on Pennsy lines. The two companies were headquartered in the same city; Pennsy and Baldwin management and engineers knew each other well. When the Pennsy and Baldwin shops were at capacity, orders went to the Lima Locomotive Works in Lima, Ohio. Only as a last resort would the Pennsy use the
American Locomotive Company The American Locomotive Company (often shortened to ALCO, ALCo or Alco) was an American manufacturer of locomotives, diesel generators, steel, and tanks that operated from 1901 to 1969. The company was formed by the merger of seven smaller locomo ...
(Alco), based in Schenectady, New York, which also built for Pennsy's rival, the New York Central. The Pennsylvania Railroad had a design style that it favored in its locomotives. One example was the square-shouldered
Belpaire firebox The Belpaire firebox is a type of firebox used on steam locomotives. It was invented by Alfred Belpaire of Belgium in 1864. Today it generally refers to the shape of the outer shell of the firebox which is approximately flat at the top and s ...
. This British-style firebox was a Pennsy trademark that was rarely used by other locomotive builders in the United States. The Pennsy also used track pans extensively to retrieve water for the locomotive while in motion. Using this system meant that the tenders of their locomotives had a comparatively large proportion of coal (which could not be taken on board while running) compared to water capacity. Locomotives of the Pennsylvania had a clean look to them. Only necessary devices were used and they were mounted neatly on the locomotive. Smoke box fronts bore a round locomotive number board denoting a freight locomotive or a keystone number board denoting a passenger locomotive. Otherwise the smoke box was uncluttered except for a headlamp at the top and a steam-driven turbo-generator behind it. In later years the positions of the two were reversed, since the generator needs more maintenance than the lamp. Each class of steam locomotive was assigned a class designation. Early on this was simply a letter, but when these ran short the scheme was changed so that each wheel arrangement had its own letter, and different types in the same arrangement had different numbers added to the letter. Sub-types were indicated by a lower-case letter; super-heating was designated by an "s" until the mid-1920s, by which time all new locomotives were super-heated. A K4sa class was a 4-6-2 "Pacific" type (K) of the fourth class of Pacifics designed by the Pennsy. It was super-heated (s) and was of the first variant type (a) after the original (unlettered). Steam locomotives remained part of the Pennsy fleet until 1957. The Pennsy's reliance on steam locomotives in the mid-20th century contributed to its decline. Steam locomotives require more maintenance than diesel locomotives, are less cost efficient, and require more personnel to operate. Plus, coaling and watering facilities and machine shops added greatly to steam-related costs. Like other railroads, the Pennsy was unable to update its roster at will during the World War II years; by the end of the war their roster was in rough shape. In addition, the Pennsy was saddled with unsuccessful experimental steam locomotives such as the Q1, S1, and T1 " Duplex Drive" locomotives, and the S2 turbine locomotive. Unlike most of their competition, the Pennsy did not acquire any Northerns or Berkshires. Pennsy competitors managed this period better with their diesel locomotive rosters. The Pennsylvania Railroad voluntarily preserved a roundhouse full of representative steam locomotives at
Northumberland, Pennsylvania Northumberland is a borough in Northumberland County, Pennsylvania, United States. The population was 3,804 at the 2010 census. History A brewer named Reuben Haines, a native of Philadelphia, Pennsylvania, founded the town of Northumberland i ...
in 1957 and kept them there for several decades. These locomotives, with the exception of I1sa #4483 which is on display at Hamburg, New York, are now at the
Railroad Museum of Pennsylvania The Railroad Museum of Pennsylvania is a railroad museum in Strasburg, Lancaster County, Pennsylvania. The museum is located on the east side of Strasburg along Pennsylvania Route 741. It is administered by the Pennsylvania Historical and Mus ...
in Strasburg, Pennsylvania. In sharp contrast, the New York Central's President,
Alfred E. Perlman Alfred Edward Perlman (November 22, 1902—April 30, 1983) was a railroad executive, having served as president of the Penn Central Transportation Company and its predecessor, the New York Central Railroad. Early career Perlman graduated from ...
, deliberately scrapped all but two steam locomotives, with the older one (L2d) surviving only by accident. On December 18, 1987, the State of Pennsylvania designated the Pennsy's K4s as the official State Steam Locomotive. The two surviving K4s are No. 1361, which is undergoing restoration to operating condition at the Railroaders Memorial Museum in Altoona, and No. 3750, which remains on static display at the Pennsylvania Railroad Museum in Strasburg. the only operable Pennsylvania Railroad steam locomotive is class B4a engine # 643, built in July 1901 in Altoona. Engine 643 is maintained by volunteers of the Williams Grove Historical Steam Engine Association outside of Harrisburg, and is operated several weekends each summer. however, a major construction project has been underway since 2014, building a new operational example of a class T1 engine numbered 5550, as all original class T1 locomotives have been scrapped. The project is being undertaken by the
Pennsylvania Railroad T1 Steam Locomotive Trust Pennsylvania Railroad 5550 (PRR 5550) is a mainline duplex drive steam locomotive under construction in the United States. With an estimated completion by 2030, the locomotive will become the 53rd example of the Pennsylvania Railroad's T1 ste ...
and is projected to be finished by 2030.


Electric

When work on the Hudson River tunnels and New York's Penn Station was in progress, the type of electric locomotives to be used was an important consideration. At that time only a few electric locomotives existed. Several experimental locomotives were designed by railroad and Westinghouse engineers and tried on the West Jersey & Seashore Railroad track. From these tests the DD1 class was developed. The DD1s were used in pairs (back-to-back). Thirty-three of these engines having Westinghouse equipment were built at Altoona. They were capable of speeds up to . Placed in service in 1910, they performed well, lasting in regular service through the 1940s. Steel suburban passenger cars capable of being electrified for MU operation were designed due to the need for such cars in service to Penn Station through its associated tunnels and were designated MP54. Designs for corresponding cars accommodating baggage and mail were produced also. Eight of these cars were electrified with DC equipment to provide shuttle service from Penn Station to Manhattan Transfer between 1910 and 1922. More extensive electrification plans required AC electrification, starting with 93 cars for the Paoli Line in 1915. With the expansion of the AC electrification, additional MP54 cars were electrified or purchased new until a total of 481 cars was reached in 1951. Replacement with newer types of cars began in 1958 and the last MP54 cars were retired in the early 1980s. The single FF1 appeared in 1917 and ran experimentally for a number of years in preparation for electrification over the Allegheny Mountains that never came to fruition. Its AC induction motors and side-rod drive powered six axles. It developed a starting tractive force of , which was capable of ripping couplers out of the fragile wooden freight cars in use at the time. In 1924, another side-rod locomotive was designed: (the L5 class). Two DC locomotives were built for the New York electrified zone and a third, road number 3930, was AC-equipped and put in service at Philadelphia. Later 21 more L-5 locomotives were built for the New York service. A six-wheeled switching engine was the next electric motive power designed, being classified as B1. Of the first 16 AC engines, two were used at Philadelphia and 14 on the Bay Ridge line, while 12 DC-equipped engines were assigned to Sunnyside Yard in Queens, New York. The O1 class was a light passenger type. Eight of these engines were built from June 1930 to December 1931. The P5 class was also introduced, with two of this class being placed in service during July and August 1931. Following these came the P5A, a slightly heavier design capable of traveling and with a tractive force of . In all, 89 of these locomotives were built. The first had a box cab design and were placed in service in 1932. The following year, the last 28 under construction were redesigned to have a streamlined type of cab. Some engines underwent re-gearing for freight service. In 1933, two entirely new locomotives were being planned: the R1 and the GG-1 class. The R-1 had a rigid frame for its four driving axles, while the GG-1 had two frames which were articulated. Both of these prototypes, along with an O-1, a P5A and a K4s steam locomotive underwent exhaustive testing. Testing was conducted over a special section of test track near Claymont, Delaware, and lasted for nearly two years. As a result of these experiments, the GG1 type was chosen and the construction of 57 locomotives was authorized. The first GG1 was finished in April and by August 1935 all 57 were completed. These first GG1 engines were designated for passenger service, while most of the P5A type were made available for freight service. Some of the later-built GG1s were assigned to freight service as well. The total number of GG1s built was 139. They are rated at at speeds of . On August 26, 1999, the U.S. Postal Service issued commemorative 33-cent ''
All Aboard! 20th Century American Trains In August 1999, the United States Postal Service issued a set of 33¢ postage stamps entitled ''All Aboard! 20th Century American Trains'' to "''pay tribute to American industry and design, and specifically to the heritage of our railroads.''" Ar ...
'' stamps. These commemorative stamps featured five celebrated American passenger trains from the 1930s and 1940s. One of the five stamps features an image of a GG-1 locomotive pulling the "Congressional Limited Express." The official Pennsylvania State Electric Locomotive is the GG-1 #4859. It received this designation on December 18, 1987, and is currently on display in Harrisburg, Pennsylvania.


Diesel

In June 1937, the Pennsy acquired its first
diesel locomotive A diesel locomotive is a type of railway locomotive in which the prime mover is a diesel engine. Several types of diesel locomotives have been developed, differing mainly in the means by which mechanical power is conveyed to the driving whee ...
: a 600-hp diesel-electric switch engine from Electro-Motive Corporation (EMC), a predecessor of General Motors Electro-Motive Division (EMD). EMC called it an SW model; the railroad dubbed it class ES6. The Pennsy bought its second diesel, another switcher, in October 1941: an
EMD NW2 The EMD NW2 is a , B-B switcher locomotive manufactured by General Motors Electro-Motive Division of La Grange, Illinois. From February 1939 to December 1949, EMD produced 1,145 NW2s: 1,121 for U.S. and 24 for Canadian railroads. Starting in ...
(Pennsy class ES10). Wartime restrictions soon restricted locomotive builders' production of diesels intended for freight service. Still, the Pennsy managed to add 15 Baldwin switchers and one EMD switcher. After the war, the Pennsy began to buy diesel locomotives in earnest. From 1945 through 1947, the railroad bought roughly 100 switcher, freight, and passenger diesels from various builders, then another 800 or so (total) in 1948 and 1949.


Passenger Units

For passenger units, the PRR purchased 60 E7-class locomotives from EMD, which the Pennsy dubbed the EP20 class. 46 of this number were designated "A" units, meaning that they had a cab for the train crew. The remaining 14 were "B" units, cabless booster units controlled by an "A" unit. The Pennsy also acquired 15 Alco PA1/PB1 units (class AFP20) and 27 Baldwin DR-6-4-2000 (class BP20) units. The Baldwin units were originally for the passenger service fleet, but these locomotive proved troublesome and some were reclassified as BF16z freight locomotives. The Pennsy also bought 24 Baldwin DR-12-8-1500/2s, called "Centipedes" and classified by Pennsy as BP60. The Centipede had an immense weight of and a starting tractive effort of 205,000 pounds. Unreliable and expensive to maintain, they were quickly relegated to helper service. From 1950 to 1952, the Pennsy bought 74 EMD E8A locomotives, the successor to the E7, and classified them EP22s. Also, the PRR purchased 40 dual-service
EMD FP7 The EMD FP7 is a , B-B dual-service passenger and freight-hauling diesel locomotive produced between June 1949 and December 1953 by General Motors' Electro-Motive Division and General Motors Diesel. Final assembly was at GM-EMD's La Grange, ...
units which were similar to the E7/8 units, but using 4 axles instead of 6.


Freight Units

From the late 1940s through to the merger with the New York Central in 1968, the Pennsy purchased about 1,500 diesel freight units.Freight units as classified by the PRR. 2/3 of these units were built by EMD, primarily F3s, F7s, GP9s, GP35s, EMD SD40, SD40s, and EMD SD45, SD45s. Early on in dieselization of freight units, the Pennsy purchased cab units from Alco, Baldwin, EMD, and Fairbanks Morse. Heading into the 1950s, the Pennsy continued to add more diesel units to their fleet. Still preferring EMD, the Pennsy did add ALCO FA, FA units and Baldwin RF-16, BLH RF-16 “Sharks". In 1956, the Pennsy called for bids to supply a large order of diesel locomotives. GM/EMD gave the Pennsy an exceptional deal on new, reliable GP9s, and received the entire order. When this large diesel order arrived the following year, the Pennsy retired all of its remaining steam engines. One of the losing bidders, Baldwin Locomotive Works — a longtime supplier of Pennsy locomotives — had been counting on winning at least some of the work. When EMD won it all, the 126-year-old Baldwin declared bankruptcy. For the last decade of Pennsy's existence (1960s), the Pennsy was ordering 4-axle power, buying Alco's 'ALCO Century Series locomotives, Century' series locomotives, newcomer General Electric (GE) GE U25B, U25Bs, and EMD EMD GP30, GP30s and GP35s. But by 1965, the Pennsy turned exclusively to 6-axle power, buying Alco's ALCO Century 628, C628 and ALCO Century 630, C630, GE's GE U25C, U25C, GE U28C, U28C, and GE U30C, U30C, and EMD's EMD SD35, SD35, SD40, and SD45.


Signaling

The Pennsylvania Railroad was one of the first railroads to replace Railway signal#Mechanical signals, semaphore signals with railroad signal#Position light signals, position-light signals. Such signals, which featured a large round target with up to eight amber-colored lights in a circle and one in the center, could be lit in various patterns to convey different meanings, were more visible in fog, and remained effective even when one light in a row was inoperative. Railway signal#Aspects and indications, Signal aspects, or meanings, were displayed as rows of three lit lights. The aspects corresponded with upper-quadrant semaphore signal positions: vertical for "proceed", a 45° angle rising to the right for "approach", horizontal for "stop", a 45° angle rising to the left for "restriction", a "X" shape for "take siding", and a full circle (used in electrified territory) for "lower pantograph". Additional aspects were conveyed with a second target head below the first, either a single light, a partial target, or a full target. Separate Manual Block signal aspects existed as well. In later years, interlocking home signals north and west of Rockville (near Harrisburg) were modified so that the two outside lights in the horizontal "stop" row had red lenses; the center lamp would be extinguished when the signal displayed "stop". Such "red-eye" lenses were also temporarily installed at Overbrook Interlocking near Philadelphia. Starting in the late 1920s, the Pennsy installed Pulse code cab signaling along certain tracks used by high-speed passenger trains. Information traveled through the rails using track circuits, was picked up by a sensor on the locomotive, and displayed in the engineer's cab. The Pennsy ultimately installed cab signals on its New York-Washington, Philadelphia-Pittsburgh, and Pittsburgh-Indianapolis lines (the latter which was later downgraded by PC and ultimately abandoned by Conrail). The Pennsylvania also experimented with cab signals without wayside signals, an approach later expanded by Conrail (Conemaugh Line, Conemaugh line) and Norfolk Southern Railway (Cleveland Line (Norfolk Southern), Cleveland line). Cab signals were subsequently adopted by several other U.S. railroads, especially on passenger lines. This technology, advanced for its time, is still used by Amtrak.


Facilities


Shops

The main shops of the Pennsylvania Railroad were located at Altoona. Additional repair facilities were located in Harrisburg, Pittsburgh, Renovo, and Mifflin. Fort Wayne, Indiana, also became a key shop for the railroad.


Altoona Works

In 1849, Pennsy officials developed plans to construct a repair facility at Altoona. Construction started in 1850, and soon, several small buildings housed a machine shop, woodworking shop, blacksmith shop, locomotive repair shop, and foundry. These facilities were later demolished to make room for continuing expansion. By 1926, the Altoona Works occupied and consisted of four units: the Altoona Machine Shops, Altoona Car Shops, Juniata Shops, and South Altoona Foundries. *The Altoona Machine Shops consisted of over a dozen buildings and performed locomotive repairs, plus made locomotive repair parts and non-metal castings. *The Altoona Car Shops were built beginning in 1869. By 1926, it included a dozen buildings, built passenger and freight cars, and repaired same. *The Juniata Shops were built out of need for more shop space at Altoona, in 1889. These shops consisted of 10 buildings, and constructed locomotives and performed heavy repairs of locomotives. *The South Altoona Foundries were built, again, out of need for more space at Altoona, in 1904. The shops primarily made gray iron castings. In 1875, the Altoona Works started a Test Department for Pennsy equipment, both built and purchased. In following years, the Pennsylvania Railroad led the nation in the development of research and testing procedures of practical value for the railroad industry. Use of the testing facilities was discontinued in 1968. By 1945, the Altoona Works had become one of the largest repair and construction facilities for locomotives and cars in the world. Since 1968, many of the structures of Altoona Works were demolished.


Yards

The Pennsylvania Railroad had several railroad yards (rail yards) throughout its system. *Conway Yard was built in the 1880s, northwest of Pittsburgh in Conway, Pennsylvania. Conway was built strategically in the middle of the Pennsylvania's system and started as a poling yard. The yard was made into a hump yard in 1901 to increase the volume of cars handled. By 1957, it was the world's largest automatic classification yard. *Crestline Yard was built by the Pittsburgh, Fort Wayne & Chicago Railway around 1863 and significantly improved in the early 1920s by the Pennsy to speed Chicago shipments and eliminate east and westbound freight classification at Fort Wayne. Crestline is located about halfway between Pittsburgh and Chicago in Crestline, Ohio, and could hold over 1,600 cars. *Enola Yard was built in the early 1900s and lies across the Susquehanna River from Harrisburg. The yard grew from humble beginnings of 12 tracks to over of tracks, capable of handling thousands of freight cars and becoming the world's largest freight rail yard by the 1940s. * Sunnyside Yard was completed in 1910 for use with Penn Station in New York City. The yard is across the East River from Penn Station in Manhattan, situated in Sunnyside, Long Island. Sunnyside yard was capable of storing over 1,000 passenger cars, occupying a roughly rectangular area long by wide; in all.


Major passenger stations

The Pennsy built several grand passenger stations, alone or with other railroads. These architectural marvels, whose city name was usually preceded by "Penn Station", were the hubs for the PRR's passenger service. Many are still in use today, served by Amtrak and regional passenger carriers.


Heritage Units

As a part of Norfolk Southern's 30th anniversary, they painted 20 new locomotives into predecessor schemes. NS #8102, a GE ES44AC, was painted into the Pennsylvania RR scheme. As a part of NJ Transit Rail Operations, New Jersey Transit's 40th anniversary in 2019, three locomotives were painted into predecessor schemes. ALP-46, Bombardier ALP-46A #4636 was wrapped into the Pennsylvania RR scheme.


See also

*Conrail — successor to Penn Central from 1976 *Horseshoe Curve (Altoona, Pennsylvania) *List of Pennsylvania Railroad lines east of Pittsburgh *List of Pennsylvania Railroad lines west of Pittsburgh *List of Pennsylvania Railroad passenger trains *List of Pennsylvania Railroad predecessor railroads *Monopoly (game), Monopoly — One of the railroads in the Atlantic City-themed version of the game is the PRR. *
New York Central Railroad The New York Central Railroad was a railroad primarily operating in the Great Lakes and Mid-Atlantic regions of the United States. The railroad primarily connected greater New York and Boston in the east with Chicago and St. Louis in the Mi ...
 — longtime adversary, eventual merger partner *New York, New Haven and Hartford Railroad — longtime partner in run-through trains, also became part of Penn Central *
Norfolk Southern Railway The Norfolk Southern Railway is a Class I freight railroad in the United States formed in 1982 with the merger of Norfolk and Western Railway and Southern Railway. With headquarters in Atlanta, the company operates 19,420 route miles (31 ...
 — successor to Conrail in former PRR territory * Penn Central Transportation Company — successor to the PRR and NYC in 1968 *
Pennsylvania Company The Pennsylvania Company, later known publicly as the Pennsylvania Lines (west of Pittsburgh) was a major holding company. It included the Pittsburgh, Fort Wayne and Chicago Railway, the PRR's main route to Chicago. It also owned but did not opera ...
 — holding company incorporated in 1870 to own/operate lines west of Pittsburgh *Pennsylvania Lines LLC — Conrail subsidiary that owned ex-PRR trackage and PRR reporting mark *Pennsylvania Station — the name for several major stations *Pennsylvania Railroad Freight Building *Pennsylvania Railroad Office Building *PRR locomotive classification *Track gauge in the United States#Unification to standard gauge on May 31, 1886, Unification to standard gauge on May 31, 1886


References


Notes


Citations


Sources

* * * * * * * * * * * * * * *


Further reading

* * * * * * * *


External links


Pennsylvania Railroad Technical and Historical Society

Railroad Museum of Pennsylvania Strasburg, Pennsylvania
— museum with many PRR artifacts

— year-by-year listing of events related to or impacting the Pennsylvania Railroad
RR Picture Archives
— Photos of PRR equipment
Archival collections of the Pennsylvania Railroad
at Hagley Museum and Library
Hagley Digital Archives: Pennsylvania Railroad negatives


* [http://railsandtrails.com/default.htm History of transportation in Ohio] — maps of railroads in Ohio including the Pennsylvania Railroad
Harvard College: 20th century great American business leaders — Martin W. Clement


* hdl:1903.1/1441, Ray Hiebert papers at the University of Maryland Libraries are a collection of official press releases from the first 50 years of the Pennsylvania Railroad {{DEFAULTSORT:Pennsylvania Railroad Pennsylvania Railroad, 1846 establishments in Pennsylvania 1968 disestablishments in Pennsylvania Conrail Defunct companies based in Pennsylvania Defunct Delaware railroads Defunct Illinois railroads Defunct Indiana railroads Defunct Kentucky railroads Defunct Maryland railroads Defunct Michigan railroads Defunct Missouri railroads Defunct New Jersey railroads Defunct New York (state) railroads Defunct Ohio railroads Defunct Pennsylvania railroads Defunct Virginia railroads Defunct Washington, D.C., railroads Defunct West Virginia railroads Former Class I railroads in the United States Predecessors of Conrail Railway companies disestablished in 1968 Railway companies established in 1846 Railroads in the Chicago metropolitan area Standard gauge railways in the United States