The Capital Subdivision is a railroad line owned and operated by CSX Transportation in the U.S. state of Maryland and the District of Columbia. The line runs from near Baltimore, Maryland, southwest to Washington, D.C., along the former Baltimore and Ohio Rail Road (B&O) Washington Branch. The subdivision's Alexandria Extension provides a connection to Virginia and points south.
The Cumberland Valley Subdivision is a railroad line owned and operated by the CSX Railroad in the U.S. states of Kentucky and Virginia. The line runs from Corbin, Kentucky, east to Big Stone Gap, Virginia, along a former Louisville and Nashville Railroad line.
The Mountain Subdivision is a railroad line owned and operated by CSX Transportation in the U.S. states of Maryland and West Virginia. The line runs from Cumberland, Maryland, west to Grafton, West Virginia, along the original Baltimore and Ohio Railroad (B&O) main line. It was known as the West End Subdivision until the B&O's absorption into the Chessie System, and included the B&O's original crossing of the Allegheny Mountains. Through CSX traffic to the west from Cumberland now uses the Keystone Subdivision over Sand Patch Grade.
The Hanover Subdivision is a railroad line owned and operated by CSX Transportation in the U.S. states of Maryland and Pennsylvania. The line runs from Baltimore, Maryland, west to Hagerstown, Maryland, along several former Western Maryland Railway (WM) lines. It meets the Baltimore Terminal Subdivision at its east end, and the Lurgan Subdivision heads both north and west from its west end.
The Keystone Subdivision is a railroad line owned and operated by CSX Transportation in the U.S. states of Maryland and Pennsylvania. The line runs from Cumberland, Maryland, west to McKeesport, Pennsylvania, along a former Baltimore and Ohio Railroad (B&O) line. The line includes the well-known Sand Patch Grade over the Allegheny Mountains.
The Columbus Line Subdivision is a railroad line owned by CSX Transportation in the U.S. state of Ohio. The line runs from Galion south to Columbus along a former New York Central Railroad line.
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.
The Metropolitan Subdivision is a railroad line owned and operated by CSX Transportation in Washington, D.C. and Maryland.The 53-mile line runs from Washington, D.C., northwest to Weverton, Maryland, along the former Metropolitan Branch of the Baltimore and Ohio Railroad.
The Lurgan Subdivision is a railroad line owned and operated by CSX Transportation in the U.S. states of Pennsylvania, Maryland, and West Virginia. The line runs from Chambersburg, Pennsylvania, south to Hagerstown, Maryland, and west to Cherry Run, West Virginia, along a former Western Maryland Railway line. It meets the Hanover Subdivision at Hagerstown and the Cumberland Subdivision at Cherry Run. The line is named after its former northern end in Lurgan Township, Franklin County, Pennsylvania, where the Western Maryland once connected to the Reading Company along the Alphabet Route.
The New Castle Subdivision is a railroad line owned and operated by CSX Transportation in the U.S. states of Pennsylvania and Ohio. The line runs from New Castle, Pennsylvania west through Youngstown and Akron to Greenwich, Ohio along a former Baltimore and Ohio Railroad line. Its east end is near Mahoningtown, at the west end of the New Castle Terminal Subdivision. Its west end is at the Willard Terminal Subdivision, just east of the Greenwich Subdivision junction at Greenwich. It junctions with the Newton Falls Subdivision at Newton Falls, Ohio, and the CL&W Subdivision at Sterling, Ohio.
The Marietta Subdivision is a railroad line owned by CSX Transportation and operated by Belpre Industrial Parkersburg Railroad in the U.S. states of West Virginia and Ohio. The line runs from Parkersburg, West Virginia, west to Belpre, Ohio, and north via Marietta to Relief along a former Baltimore and Ohio Rail Road line. Its south end is at a connection to the Ohio River Subdivision; the line crosses the Ohio River on the Parkersburg Bridge between Parkersburg and Belpre.
The Schodack Subdivision is a railroad line owned by CSX Transportation in the U.S. state of New York. The line runs from Stuyvesant north to Schodack along a former New York Central Railroad line. At its south end, it merges with the Hudson Subdivision; its north is at a junction with the Berkshire Subdivision, and the Castleton Subdivision at the east end of the Alfred H. Smith Memorial Bridge.
The Pittsburgh Subdivision is an American railroad line that is owned and operated by CSX Transportation in the Commonwealth of Pennsylvania.
The Dayton District is a railroad line owned and operated by the Norfolk Southern Railway in the U.S. state of Ohio. The line runs from Columbus southwest to Cincinnati along former Pennsylvania Railroad and New York Central Railroad lines. Its east end is at or near the Columbus District, Sandusky District, and West Virginia Secondary; its south end is in Ivorydale, where it meets the Indiana and Ohio Railway's Midland Subdivision, and just past that in Winton Place, where it meets CSX Transportation's Cincinnati Terminal Subdivision. Along the way, it junctions the New Castle District at Evendale.
The Youngstown Belt Railroad is a part of the Ohio Central Railroad System, which was bought by Genesee & Wyoming Inc. in 2008, serving the area northwest of Youngstown, Ohio. It began operations in 1997, mainly on ex-Erie Railroad trackage owned by the affiliated Warren and Trumbull Railroad (W&T), which acquired the "Lordstown Cluster" from Conrail in 1996. It also leases a short ex-Baltimore and Ohio Railroad segment from CSX Transportation, formerly operated by the W&T.
The Cumberland Terminal Subdivision is a railroad line owned and operated by CSX Transportation in the Cumberland, Maryland area. The line centers on the Cumberland rail yard and is a junction with three other subdivisions.
The Gainesville Midland Subdivision is a railroad line owned by CSX Transportation in the U.S. State of Georgia. The line runs from Athens, Georgia, to Gainesville, Georgia, for a total of 38.3 miles (61.6 km). At its south end, it branches off from the Abbeville Subdivision and at its north end the track comes to an end. The purpose of this line is to connect the CSX Abbeville Subdivision with the Norfolk Southern Piedmont District.
The C&N Subdivision is a railroad line owned by CSX Transportation and operated by the Columbus and Ohio River Railroad in the U.S. State of Ohio. The line runs from Newark, Ohio, to Columbus, Ohio, for a total of about 30 miles (48 km). At its east end the line continues west from the Columbus and Ohio River Railroad Mt. Vernon Sub and at its west end it connects to the Norfolk Southern Dayton District.
The Stony River Subdivision is a railroad line owned by CSX Transportation in the U.S. state of West Virginia. The line is located in Bayard, West Virginia, for a total of 16.7 miles (26.9 km). At its north end the line connects with the Thomas Subdivision and at its south end the line comes to an end.
The Thomas Subdivision is a railroad line owned by CSX Transportation in the U.S. states of Maryland and West Virginia. The line runs from Rawlings, Maryland, to Bayard, West Virginia, for a total of 44.2 miles (71.1 km). At its east end the line continues west from the Mountain Subdivision and at its west end the line comes to an end.
