The 14th Street Bridge carries Interstate 395 and U.S. Highway 1 traffic across the Potomac River, connecting Arlington, Virginia and Washington DC.

The bridge is also known for being the location of the Air Florida Flight 90 airplane crash on January 13, 1982.

The 14th Street Bridge is a complex of three bridges built between 1950 and 1972. The official names for the individual bridges are the Rochambeau Bridge, for northbound lanes, and the George Mason Memorial Bridge for southbound lanes. The Rochambeau span was renamed the Arland D. Williams Jr. Memorial Bridge, for a passenger of Air Florida Flight 90 who died while saving others from the freezing water.

In July, 1989, the 14th Street Bridge gained national notoriety when then-mayor Marion Barry decided to clean up the problem in DC's 14th Street red-light district by having the police round up the prostitutes and marching them across the bridge to Virginia.