Philadelphia Subdivision

Coordinates: 39°54′10.2″N 75°8′24.1″W / 39.902833°N 75.140028°W / 39.902833; -75.140028
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39°54′10.2″N 75°8′24.1″W / 39.902833°N 75.140028°W / 39.902833; -75.140028

Philadelphia Subdivision
Northbound CSX Transportation manifest train on the Philadelphia Subdivision in Newark, Delaware
OwnerCSX Transportation
LocalePennsylvania, Delaware, and Maryland
TypeFreight rail
SystemCSX Transportation
Operator(s)CSX Transportation
Number of tracks1-2
Track gauge1,435 mm (4 ft 8+12 in) standard gauge
Route map

CP Park
PA 3
JFK Blvd.
Havre de Grace
CSX Bay View Yard
Sparrows Industrial Track
The CSX Susquehanna River Bridge, built between 1907 and 1910 near Perryville, Maryland.

The Philadelphia Subdivision is a railroad line owned and operated by CSX Transportation in the U.S. states of Pennsylvania, Delaware, and Maryland. The line runs from Philadelphia, Pennsylvania, southwest to Baltimore, Maryland, along a former Baltimore and Ohio Railroad (B&O) line.[2]

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.[3][4]


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.[5] North of Philadelphia, the B&O used the lines of the Philadelphia and Reading Railway to reach the New York City area. Passenger train service on the Philadelphia Subdivision was led by the Royal Blue, 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.[6][7]

A former B&O Railroad station in Aberdeen, Maryland.

See also[edit]


  1. ^
  2. ^ CSX Transportation. "Philadelphia Subdivision." Timetable effective 2000-04-01.
  3. ^ "PA-Philadelphia Sub - The RadioReference Wiki".
  4. ^ CSX Baltimore Division Timetable
  5. ^ H.V. and H.W. Poor Co. "Poor's Manual of Railroads of the United States: 1891." p. 49. Accessed 2010-05-12.
  6. ^ Roberts, Tony (2022-06-10). "Historic Baltimore & Ohio train station restoration rolls toward third phase". Baltimore Sun. Retrieved 2022-09-21.
  7. ^ "Aberdeen B&O Train Station Restoration, Preservation and Education". Aberdeen B&O Train Station. Archived from the original on 2022-09-21. Retrieved 2022-09-21.