Key Bridge (Washington, D.C.)

Key Bridge
Coordinates	38°54′08″N 77°04′11″W / 38.90222°N 77.06972°W / 38.90222; -77.06972
Characteristics
Clearance below	60 feet (18 m)[1][2]
Key Bridge
U.S. National Register of Historic Places
D.C. Inventory of Historic Sites
Virginia Landmarks Register
Location	US 29 over the Potomac River between Rosslyn, Virginia, and Georgetown, Washington, D.C.
Coordinates	38°54′8″N 77°4′13″W / 38.90222°N 77.07028°W / 38.90222; -77.07028
Built	1923
Architect	Nathan C. Wyeth Max C. Tyler
Architectural style	Classical Revival arch bridge 518.5 meters (1,701 ft) long
NRHP reference No.	96000199[3]
VLR No.	DC Local
Significant dates
Added to NRHP	March 1, 1996[6]
Designated DCIHS	November 8, 1964[4]
Designated VLR	October 18, 1995[5]
Location

The Francis Scott Key Bridge, more commonly known as the Key Bridge, is a six-lane reinforced concrete arch bridge carrying U.S. Route 29 (US 29) across the Potomac River between the Rosslyn neighborhood of Arlington County, Virginia, and the Georgetown neighborhood of Washington, D.C. Completed in 1923, it is Washington's oldest surviving road bridge across the Potomac River.

Key Bridge was named for the poet Francis Scott Key, who wrote the words of the American national anthem "The Star-Spangled Banner". It was added to the National Register of Historic Places in 1996. It shared a name with a continuous truss bridge in Baltimore, Maryland, which collapsed in 2024.