The Philadelphia Subdivision is a

railroad Rail transport (also known as train transport) is a means of transport that transfers passengers and goods on wheeled vehicles running on rails, which are incorporated in tracks. In contrast to road transport, where the vehicles run on a prep ...

line owned and operated by

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

in the U.S. states of

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, ...

Delaware Delaware ( ) is a state in the Mid-Atlantic region of the United States, bordering Maryland to its south and west; Pennsylvania to its north; and New Jersey and the Atlantic Ocean to its east. The state takes its name from the adjacent ...

, and

Maryland Maryland ( ) is a state in the Mid-Atlantic region of the United States. It shares borders with Virginia, West Virginia, and the District of Columbia to its south and west; Pennsylvania to its north; and Delaware and the Atlantic Ocean t ...

. The line runs from

Philadelphia, Pennsylvania 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 ...

, southwest 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 ...

, along a former

Baltimore and Ohio Railroad The Baltimore and Ohio Railroad was the first common carrier railroad and the oldest railroad in the United States, with its first section opening in 1830. Merchants from Baltimore, which had benefited to some extent from the construction of ...

(B&O) line. At its north end, CP Park (Park Junction), in

Brewerytown, Philadelphia Brewerytown is a neighborhood in the North Philadelphia section of Philadelphia, Pennsylvania, United States. An unofficial region, Brewerytown runs approximately between the Schuylkill River's eastern bank and 25th Street, bounded by Montgomery ...

, 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 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 ...

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 to reach the

New York City New York, often called New York City or NYC, is the List of United States cities by population, most populous city in the United States. With a 2020 population of 8,804,190 distributed over , New York City is also the L ...

area.

Passenger train A passenger train is a train used to transport people along a railroad line. These trains may consist of unpowered passenger railroad cars (also known as coaches or carriages) hauled by one or more locomotives, or may be self-propelled; self p ...

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 clothiers in Rode, Somerset, a consortium of whom won a competition to make a dress for Queen Charlotte, consort of King George III. Brightness The '' Oxford E ...

,'' 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 train Rail freight transport is the use of railroads and trains to transport cargo as opposed to human passengers. A freight train, cargo train, or goods train is a group of freight cars (US) or goods wagons (International Union of Railways) haul ...

s. In the 1970s and 80s the line passed through leases and mergers to CSX. As of July 2022,

Aberdeen, Maryland Aberdeen is a city located in Harford County, Maryland, United States, northeast of Baltimore. The population was 16,254 at the 2020 United States Census. Aberdeen is the largest municipality in Harford County. Aberdeen is part of the Baltimor ...

is restoring the former B&O Aberdeen station, the last remaining station on the line. Aberdeen B&O Station

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