Bridge condition by state is based on National Bridge Inventory (NBI) data submitted in 2019.
Hovering over an individual state displays the state name and associated information. A bridge is in GOOD condition only if the deck, superstructure, and substructure are all rated 7 or better. A bridge is in POOR condition if any of the deck, superstructure, or substructure condition is rated 4 or worse.
A culvert is in GOOD condition if it is rated 7 or better. A culvert is in POOR condition if it is rated 4 or worse.