Francis Scott Key Bridge (Baltimore)

Francis Scott Key Bridge
View from Fort Armistead Park in 2015
Coordinates39°13′01″N 76°31′42″W / 39.2169°N 76.5283°W / 39.2169; -76.5283
Carried4 lanes of
I-695 Toll
CrossedPatapsco River
LocaleBaltimore metropolitan area, Maryland, U.S.
Maintained byMaryland Transportation Authority
ID number300000BCZ472010
Websiteweb.archive.org/web/20240324212456/mdta.maryland.gov/Toll_Facilities/FSK.html
Characteristics
DesignSteel arch-shaped continuous through truss bridge
MaterialSteel
Total length8,636 feet (2,632.3 m; 1.6 mi)
Width58 feet (18 m)
Height358 feet (109 m)
Longest span1,200 feet (366 m)
Clearance below185 feet (56 m)
History
DesignerJ. E. Greiner Company
Construction start1972 (1972)
OpenedMarch 23, 1977 (1977-03-23)
CollapsedMarch 26, 2024 (2024-03-26)
Statistics
Daily traffic34,000
Toll$4 (suspended)
Location
Interactive map of Francis Scott Key Bridge

The Francis Scott Key Bridge (informally, Key Bridge or Beltway Bridge) was a highway bridge that crossed the lower Patapsco River and outer Baltimore Harbor/Port. It was opened on March 23, 1977, to carry the Baltimore Beltway (Interstate 695 or I-695) between Dundalk and Hawkins Point.

Initially named the Outer Harbor Crossing, the bridge was renamed in 1976 for poet Francis Scott Key, who wrote the lyrics to "The Star-Spangled Banner", the U.S. national anthem. At 8,636 feet (2,632 m), it was the second-longest bridge in the Baltimore metropolitan area, after the Chesapeake Bay Bridge. Its main span of 1,200 feet (366 m) was the third-longest of any continuous truss in the world.

Operated by the Maryland Transportation Authority (MDTA), the bridge was the outermost of three crossings of Baltimore's harbor, along with the Baltimore Harbor and Fort McHenry tunnels, all of which require tolls for passage. It carried an estimated 11.5 million vehicles annually, including trucks carrying hazardous materials prohibited in the tunnels. It completed the last gap in I-695's circuit of the city, although the bridge roadway was officially a state road: the unsigned Maryland Route 695.

On March 26, 2024, the main span collapsed when a container ship struck one of its piers, killing six workers who were doing maintenance on the bridge at the time. As of March 2026, the remnants are being demolished and a replacement bridge is being built at the site, with completion schedule in late 2030.