BridgeSafety
State Overview · 2025 Data

Illinois Bridge Conditions

Illinois has 27K bridges in the FHWA National Bridge Inventory. 7.6K (28.1%) are structurally deficient. Average bridge age is 46 years with an average Condition Score of 57/100.

27K
Total Bridges
28.1%
Deficient
46 yrs
Avg Age
57
Avg Score

Worst Condition Bridges in Illinois

Highest Traffic Bridges in Illinois

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