Landover Subdivision

The Landover Subdivision is a railroad line owned and operated by CSX Transportation. It runs from the Anacostia section of Washington, D.C. to Landover, Maryland, serving as a freight train bypass of Washington Union Station.

At the Landover end, the line connects to the Amtrak Northeast Corridor (NEC). CSX operates freight trains on an 8.3 miles (13.4 km) section of the NEC between Landover and its Popes Creek Subdivision. At two points along the Landover Sub there are connections to the Alexandria Extension, part of the Capital Subdivision. The Capital Sub supports freight trains headed northward to Baltimore, and southward to a connection with the Metropolitan Subdivision, for points west of Washington. The southern end of the Landover sub connects to the RF&P Subdivision, which carries freight trains southward across the Long Bridge into Virginia.

The Landover Sub was built c. 1870 by the Baltimore and Potomac Railroad (B&P), which was controlled by the Pennsylvania Railroad (PRR). This was part of the B&P's Washington City Branch, the railroad's initial route from Baltimore to Washington. At that time the branch included the Anacostia Railroad Bridge and the Virginia Avenue Tunnel, and the route continued past the tunnel to the B&P passenger station at Sixth Street and B Street NW and the Long Bridge.

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