Capital Subdivision Capital Subdivision 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 northeast end of the line is at Halethorpe, Maryland, 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 Union
Maryland City, Maryland the westernmost corner of Anne Arundel County. It is bordered by Laurel in Prince George's County to the west, by the CDP of Scaggsville in Howard County to the north, by the CDP of Jessup to the northeast, and by Fort Meade to the east. Uninhabited portions of Fort Meade are to the south. The Baltimore–Washington Parkway (Maryland Route 295) runs through the CDP, leading southwest to downtown Washington, D.C. and northeast to downtown Baltimore. Access from the parkway to Maryland City is via Maryland Route 198 (Fort Meade Road). Maryland Route 32 (the Patuxent Freeway) forms the northeast edge