How much did Francis Scott Key Bridge (Baltimore) cost to build?
The Francis Scott Key Bridge was the 1.6-mile, four-lane steel bridge carrying I-695 over the outer Baltimore Harbor, the final link in the Baltimore Beltway, built from 1972 and opened to traffic on 23 March 1977. The Maryland Transportation Authority's quick facts give its cost as 60.3 million dollars, while its history gives an estimated cost of 110 million dollars for the bridge project of 10.9 miles including approaches and the New York Times reported 141 million. The bridge collapsed on 26 March 2024 after a cargo ship struck a support column.
Final project cost
$60.3 million
Cost basis: 1977
Cost record
How the cost changed
Budgets, contracts and final costs may cover different stages. Each figure keeps its own year and source.
Final project cost
1977$60.3 million
cnsmaryland.orgPublished project estimate
1970$110 million
cnsmaryland.orgReported project cost
1977$141 million
mdta.maryland.govProject metrics
Key dimensions
- Total lengthMaryland Transportation Authority
- 2,575 m
Project record