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
I- 90 94 DAN RYANF
Score 0/100 · Built 1961 · 312K daily
I-294/I-90E 2 I-29F
Score 0/100 · Built 1959 · 190K daily
I-294F
Score 0/100 · Built 1958 · 178K daily
I-294F
Score 0/100 · Built 1959 · 178K daily
I-294F
Score 0/100 · Built 1959 · 178K daily
I-294F
Score 0/100 · Built 1958 · 178K daily
I-294F
Score 0/100 · Built 1958 · 176K daily
I-90F
Score 0/100 · Built 2016 · 156K daily
I-90F
Score 0/100 · Built 2016 · 150K daily
I-90F
Score 0/100 · Built 2015 · 150K daily
I-90F
Score 0/100 · Built 1958 · 147K daily
I-294F
Score 0/100 · Built 1958 · 143K daily
I-290F
Score 0/100 · Built 1970 · 143K daily
I-90/I-90W to I-29F
Score 0/100 · Built 1958 · 141K daily
I-290F
Score 0/100 · Built 1970 · 135K daily
I-355F
Score 0/100 · Built 1988 · 126K daily
I-294F
Score 0/100 · Built 1958 · 125K daily
I- 94 BISHOP FORDD
Score 34/100 · Built 1947 · 153K daily
I- 94 BISHOP FORDD
Score 39/100 · Built 1949 · 179K daily
I- 90 94 RYAN ELEVC
Score 41/100 · Built 1962 · 246K daily
Highest Traffic Bridges in Illinois
I- 90 94 DAN RYANF
312K daily · Score 0/100 · Built 1961
I- 80 94 KINGERYB
254K daily · Score 70/100 · Built 2004
I- 90 94 RYAN ELEVB
248K daily · Score 60/100 · Built 1962
I- 90 94 RYAN ELEVC
248K daily · Score 56/100 · Built 1962
I- 90 94 RYAN ELEVC
246K daily · Score 41/100 · Built 1962
I- 90 94 ELEV EXPC
246K daily · Score 52/100 · Built 1962
I- 90 94 DAN RYANC
240K daily · Score 56/100 · Built 1962
I- 90 94 JFKC
229K daily · Score 51/100 · Built 1959
I- 90 94 JFKC
227K daily · Score 55/100 · Built 1959
I- 90 94 JFKC
224K daily · Score 51/100 · Built 1959
I- 90 94 JFKC
223K daily · Score 54/100 · Built 1957
I- 90 94 JFKC
223K daily · Score 55/100 · Built 1959
I- 90 94 JFKC
217K daily · Score 47/100 · Built 1959
I- 80 94 KINGERYB
217K daily · Score 74/100 · Built 2004
I- 90 94 RYAN ELEVC
213K daily · Score 52/100 · Built 1962
I- 90 94 JFKC
205K daily · Score 50/100 · Built 1957
I- 90 94 JFKC
205K daily · Score 59/100 · Built 1960
I- 90 94 JFKC
204K daily · Score 47/100 · Built 1958
I- 90 94 RYAN ELEVC
197K daily · Score 52/100 · Built 1962
I- 90 94 RYAN ELEVC
197K daily · Score 49/100 · Built 1962