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
Fort Washington, Maryland Fort Washington, Maryland Fort Washington is an unincorporated area and census-designated place in Prince George's County, Maryland. It borders the capital of the United States of America, Washington, D.C., situated just south of the downtown district. As of the 2010 census it had a population of 23,717. It is a prosperous community with an African American majority population. The Fort Washington community is located west of Maryland Route 210, with some additional area to the east of the highway. The community is named for Fort Washington, which upon its completion in 1809 was the only defensive fort protecting Washington, D.C.