![Map of structurally deficient bridges by state and congressional district (ARTBA)](https://infrastructureusa.org/wp-content/uploads/2019/04/structurally-deficient-bridges-maps-144x144.jpg)
There are 47,052 bridges classified as structurally deficient and considered to be in poor condition, according to a new ARTBA analysis of the recently released U.S. Department of Transportation’s 2018 National Bridge Inventory (NBI) database. If placed end-to-end, they would stretch nearly 1,100 miles—the distance between Chicago and Houston.
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