page_title: Pittsburgh
section_title: Freight rail
hierarchical_section_title: Pittsburgh / Transportation / Freight rail
caption_attribution_description: Pittsburgh Penn Station, designed by Daniel Burnham. Opened in 1903 and converted to an apartment building in 1988. The rotunda is impressive.
context_page_description: Pittsburgh is a city in the state of Pennsylvania in the United States, and is the county seat of Allegheny County. A population of about 300,286 residents live within the city limits, making it the 66th-largest city in the U.S. and the second-most populous city in Pennsylvania behind Philadelphia. The Pittsburgh metropolitan area is the anchor of Western Pennsylvania, its population of 2,324,743 is the largest in both the Ohio Valley and Appalachia, the second-largest in Pennsylvania, and the 27th-largest in the U.S.
  Pittsburgh is located in the southwest of the state, at the confluence of the Allegheny, Monongahela, and Ohio rivers. Pittsburgh is known both as "the Steel City" for its more than 300 steel-related businesses and as the "City of Bridges" for its 446 bridges. The city features 30 skyscrapers, two inclined railways, a pre-revolutionary fortification and the Point State Park at the confluence of the rivers. The city developed as a vital link of the Atlantic coast and Midwest, as the mineral-rich Allegheny Mountains made the area coveted by the French and British empires, Virginians, Whiskey Rebels, and Civil War raiders.
context_section_description: Pittsburgh's rail industry dates to 1851 when the Pennsylvania Railroad first opened service between the city and Philadelphia, the Baltimore & Ohio Railroad entered the city in 1871. In 1865 Andrew Carnegie opened the Pittsburgh Locomotive and Car Works which manufactured for the industry until 1919. Carnegie also founded the Union Railroad in 1894 for heavy freight services and it still serves the area's steel industry, while George Westinghouse's Wabtec has been a leader in rail engines and switching since 1869.
  Pittsburgh is home to one of Norfolk Southern Railway's busiest freight corridors, the Pittsburgh Line, and operates up to 70 trains per day through the city. The suburban Conway Rail Yard—originally built in 1889—was the largest freight rail center in the world from 1956 until 1980 and is today the nation's second-largest. CSX, the other major freight railroad in the eastern U.S. also has major operations around Pittsburgh.
caption: Penn Station was built in 1903
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