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 t
Northbound CSX train on the Capital Subdivision at St. Denis
The Thomas Viaduct, built in 1835 over the Patapsco River, was the largest bridge in the United States at that time. It still carries the Capital Subdivision today and is the world's oldest multiple arched stone railroad bridge.
The Thomas Viaduct about 20 years after its construction in 1835
Washington Union Station in Washington, D.C.
The Baltimore Terminal Subdivision is a railroad line owned and operated by CSX Transportation in the U.S. state of Maryland. The line runs from Baltimore to Halethorpe along the original Baltimore an
Capital Subdivision
…and points south. The northeast end of the line is at Halethorpe, Maryland, (BAA 5.8) just north of the historic Thomas Viaduct, where it meets the Baltimore Terminal Subdivision and the Old Main Line Subdivision. Its southwest end is at the yard north of Washington Union Station, at a junction with the Metropolitan Subdivision…
CSX autorack train on the Baltimore Terminal Subdivision in Baltimore
Mount Winans Yard. The set of three tracks on the right is the current CSX main line. The pair of tracks on the extreme left is the Mount Clare Branch, part of the original B&O main line, leading to the Carrollton Viaduct.
Mount Royal Station in 1961