Marion, Fayette, Jefferson and Washington counties have less than 12 percent deficient bridges, Clinton and Bond counties less than 7 percent.
Wabash and Shelby counties rank the worst in Illinois, with both having more than 21 percent of their bridges ranked deficient. In Kendall County, however, less than 1 percent of bridges are unsound and in Williamson County, just over 2 percent of bridges are deficient.
In all, Illinois bridges are ranked 35th worst in the nation for structural condition, with 8.5 percent of bridges being structurally deficient. Neighboring Missouri, however, is the seventh worst in the nation, with 17 percent of its bridges unsound.
Transportation for America says despite billions of dollars in federal, state and local funds directed toward the maintenance of existing bridges, 68,842 bridges — 11.5 percent of total highway bridges in the u.s. — are classified as “structurally deficient,” requiring significant maintenance, rehabilitation or replacement.
Two key problems persist, says the report: while congress has repeatedly declared bridge safety a national priority, existing federal programs don’t ensure that aging bridges actually get fixed; and the current level of investment is nowhere near what is needed to keep up with our rapidly growing backlog of aging bridges.