Bridge Safety in Illinois

26,927 bridges — 2,563 Poor condition — avg age 45 years.

Bridge Inventory

Total Bridges26,927
Good Condition12,012
Fair Condition12,352
Poor Condition2,563
Oldest BridgeBuilt 1863
Average Age45 years

Condition Summary

% Good44.6%
% Fair45.9%
% Poor9.5%

Highest-Traffic Poor Condition Bridges in Illinois

Poor condition bridges sorted by daily traffic — the most urgent safety concerns.

Bridge Condition Year Built ADT Length
CANAL TO STEWART STS Poor 1962 245,500
RR - IHB & CSXT Poor 1949 178,600
GREENWOOD AVE Poor 1947 152,900
LITTLE CAL RIVER Poor 1947 152,900
KIRCHOFF RD Poor 1963 123,700
KIRCHOFF RD Poor 1963 123,700
US 14 NW HWY & UP RR Poor 1964 113,400
INDUSTRIAL AVE Poor 1963 113,400
US 14&UPRR FAU3512 Poor 1964 113,400
INDUSTRIAL AVE Poor 1963 113,400
TRRA Poor 1966 113,200
PALATINE RD Poor 1964 105,100
PALATINE RD Poor 1964 105,100
WACKER DRIVE Poor 1986 102,000
MAIN BR CHICAGO RIV Poor 1937 102,000
BELMONT AV Poor 1941 101,600
LAND Poor 1986 95,000
IRVING PARK RD Poor 1967 94,800
Lower LSD & Land Poor 1986 94,400
I-294 TRI STATE TOLL Poor 1959 92,200

Oldest Bridges in Illinois

Bridge Condition Year Built Age ADT
BUREAU CREEK Poor 1863 163 yrs 275
AUX SABLE CR Fair 1873 153 yrs 200
MISS RIV/RR/MSS6000 Fair 1874 152 yrs 6,550
MAEYSTOWN CREEK Fair 1881 145 yrs 1,550
BAY CREEK Fair 1885 141 yrs 225
E FORK PLUM RIVER Poor 1886 140 yrs 25
APPLE CREEK Good 1890 136 yrs 25
BR OF OAT CREEK Poor 1890 136 yrs 25
TRIB TO KANKAKEE R. Fair 1890 136 yrs 550
JACKSON PK LAGOON IN Fair 1891 135 yrs 36,700

Bridge Safety in Illinois

Bridge condition data for Illinois comes from the FHWA National Bridge Inventory. All publicly accessible bridges with a span over 20 feet are inspected at least every 24 months by certified bridge inspectors.