Top 25 Illinois Counties With the Most Bridges in Poor Condition


There are nearly 27,000 bridges across Illinois. And according to the Federal Highway Administration's 2015 data, 8 percent of them are considered "structurally deficient" and seven percent "functionally obsolete," meaning those Illinois bridges either have major parts in poor condition or are out-of-date. Our state ranks seventh for most structurally deficient bridges and 27th based on percentage of deficient bridges to overall inventory according to a recent analysis.

Using FHWA data, we've ranked the top 25 Illinois counties with the most deficient Illinois bridges.

Top 25 Counties With the Most Deficient Illinois Bridges

25) Massac County, IL

24) Knox County, IL

23) Mercer County, IL

22) Cass County, IL

21) Madison County, IL

20) Lawrence County, IL

19) Effingham County, IL

18) Bond County, IL

17) Bureau County, IL

16) Fayette County, IL

15) St. Clair County, IL

14) Tazewell County, IL

13) Macoupin County, IL

12) Hancock County, IL

11) McHenry County, IL

10) Union County, IL

9) Shelby County, IL

8) Jo Daviess County, IL

7) Kane County, IL

6) Christian County, IL

5) Will County, IL

4) DuPage County, IL

3) Peoria County, IL

2) Lake County, IL

1) Cook County, IL

You can see a detailed breakdown of each county's deficient bridges here.