The Philadelphia Subdivision is a

railroad Rail transport (also known as train transport) is a means of transport using wheeled vehicles running in railway track, tracks, which usually consist of two parallel steel railway track, rails. Rail transport is one of the two primary means of ...

line owned and operated by

CSX Transportation CSX Transportation , known colloquially as simply CSX, is a Class I freight railroad company operating in the Eastern United States and the Canadian provinces of Ontario and Quebec. Operating about 21,000 route miles () of track, it is the lead ...

in the U.S. states of

Pennsylvania Pennsylvania, officially the Commonwealth of Pennsylvania, is a U.S. state, state spanning the Mid-Atlantic (United States), Mid-Atlantic, Northeastern United States, Northeastern, Appalachian, and Great Lakes region, Great Lakes regions o ...

Delaware Delaware ( ) is a U.S. state, state in the Mid-Atlantic (United States), Mid-Atlantic and South Atlantic states, South Atlantic regions of the United States. It borders Maryland to its south and west, Pennsylvania to its north, New Jersey ...

, and

Maryland Maryland ( ) is a U.S. state, state in the Mid-Atlantic (United States), Mid-Atlantic region of the United States. It borders the states of Virginia to its south, West Virginia to its west, Pennsylvania to its north, and Delaware to its east ...

. The line runs from

Philadelphia, Pennsylvania Philadelphia ( ), colloquially referred to as Philly, is the List of municipalities in Pennsylvania, most populous city in the U.S. state of Pennsylvania and the List of United States cities by population, sixth-most populous city in the Unit ...

, southwest to

Baltimore, Maryland Baltimore is the List of municipalities in Maryland, most populous city in the U.S. state of Maryland. With a population of 585,708 at the 2020 United States census, 2020 census and estimated at 568,271 in 2024, it is the List of United States ...

, along a former

Baltimore and Ohio Railroad The Baltimore and Ohio Railroad was the oldest railroads in North America, oldest railroad in the United States and the first steam engine, steam-operated common carrier. Construction of the line began in 1828, and it operated as B&O from 1830 ...

(B&O) line. At its north end, CP NICE, in Nicetown-Tioga, Philadelphia, the Philadelphia Subdivision becomes the Trenton Subdivision. The south end of the Philadelphia Subdivision is near Bay View Yard, where the Baltimore Terminal Subdivision begins.

History

The line was built by the Baltimore and Philadelphia Railroad in Pennsylvania and as a branch of the B&O Railroad in Delaware and Maryland. The line began full operation in 1886. North of Philadelphia, the B&O used the lines of the

Philadelphia and Reading Railway The Reading Company ( ) was a Philadelphia-headquartered rail transport, railroad that provided passenger and freight transport in eastern Pennsylvania and neighboring states from 1924 until its acquisition by Conrail in 1976. Commonly called th ...

to reach the

New York City New York, often called New York City (NYC), is the most populous city in the United States, located at the southern tip of New York State on one of the world's largest natural harbors. The city comprises five boroughs, each coextensive w ...

area.

Passenger train A passenger train is a train used to transport people along a railroad line, as opposed to a freight train that carries goods. These trains may consist of unpowered passenger railroad cars (also known as coaches or carriages) push-pull train, ...

service on the Philadelphia Subdivision was led by the ''

Royal Blue Royal blue is a deep and vivid shade of blue. It is said to have been created by a consortium of mills in Rode, Wiltshire (in Somerset as of 1937), which won a competition to make a robe for Queen Charlotte, consort of King George III. I ...

,'' its flagship train. The B&O ceased operation of passenger trains on the subdivision in 1958, and since then the line has been used only for freight trains. In the 1970s and 80s the line passed through leases and mergers to CSX. As of July 2022, Aberdeen, Maryland is restoring the former B&O Aberdeen station, the last remaining station on the line.

References

* Herbert H. Harwood, Jr., ''Royal Blue Line''. Sykesville, Md.: Greenberg Publishing, 1990 (). {{Refend CSX Transportation lines Rail infrastructure in Pennsylvania Rail infrastructure in Delaware Rail infrastructure in Maryland Baltimore and Ohio Railroad lines

History

See also

References