1887, as the Alexandria and Washington Railway. In 1873 the Baltimore and Potomac Railroad's branch over the Long Bridge opened, giving a route into Washington, D.C., over which the A&W obtained trackage rights. The Alexandria and Fredericksburg Railway was chartered February 3, 1864, to continue the line from Alexandria to Fredericksburg. It opened on July 2, 1872, only reaching Quantico, the north end of the RF&P. At Quantico the 1.7-mile (2.7 km) Potomac Railroad, chartered April 21, 1867, and opened May 1, 1872, connected the two lines. It was leased to the RF&P for 28 years from May 17, 1877. On March 31, 1890, the two companies terminating in Alexandria merged to form the Washington Southern Railway. Until November 1, 1901, it was operated by the Baltimore and Potomac Railroad and its successor the Philadelphia, Baltimore and Washington Railroad (part of the Pennsylvania Railroad system). The Potomac Railroad lease was transferred to the Washington Southern on June 30, 1904. On February 24, 1920, the Washington Southern was formally merged into the RF&P. The Richmond-Washington Company was incorporated September 5, 1901, as a holding company, owning the entire capital stock of the two railroads. The stock of the company was owned equally by the Pennsylvania Railroad, Baltimore and Ohio Railroad, Atlantic Coast Line Railroad, Southern Railway, Seaboard Air Line Railway and Chesapeake and Ohio Railway. Four of these companies (B&O, ACL, SAL, C&O) have since become part of CSX. The Southern Railway is now part of Norfolk Southern and does not use the former RF&P; the former Pennsylvania Railroad, in its later incarnation as Conrail, has been split between CSX and Norfolk Southern with most of PRR's routes becoming part of Norfolk Southern. However, the portion of the former PRR that connected to the very north of the RF&P's former Potomac Yard, across the Long Bridge and into Washington DC, became part of CSX following the takeover of Conrail by NS and CSX. The RF&P company became Commonwealth Atlantic Land V Inc., and a new corporation, named the Richmond, Fredericksburg & Potomac Railway Company, was formed on October 9, 1991. On December 31, 1925, RF&P operated 118 miles of road and 432 miles of track; on December 31, 1970, mileages were 118 and 518. Passenger service As the link between "North and South" the RF&P primarily hosted the trains of other railroads, particularly those on the lucrative New York–Florida run. In