Baltimore and Potomac Railroad

Baltimore and Potomac Railroad
	Train crossing High Bridge over Gwynns Falls in Baltimore County, Maryland on the Baltimore and Potomac Railroad line.
Industry	Rail transport
Founded	May 6, 1853
Founder	Walter Bowie; Thomas Fielder Bowie; William Duckett Bowie; Oden Bowie;
Defunct	November 1, 1902
Fate	Merged with Philadelphia, Wilmington and Baltimore Railroad
Successor	Philadelphia, Wilmington and Baltimore Railroad
Headquarters	Philadelphia, Pennsylvania, United States
Area served	Maryland; Washington, D.C.;
Revenue	US$290,996.29; (1892)
Total assets	US$12,791,586; (1892)

The Baltimore and Potomac Railroad (B&P) operated from Baltimore, Maryland, southwest to Washington, D.C., from 1872 to 1902. Owned and operated by the Pennsylvania Railroad, it was the second railroad company to connect the nation's capital to the Northeastern U.S., and competed with the older Baltimore and Ohio Railroad.

Part of the B&P route is now part of Amtrak's Northeast Corridor, the most heavily traveled American intercity passenger line; and of the Penn Line of the Maryland Transit Administration's MARC commuter train service. Both its Baltimore and Potomac Tunnel, bored under north Baltimore in 1871 and the Virginia Avenue Tunnel built in Southeast Washington in 1870,^[2] remain in use, though the latter was significantly changed in 2014-15.