Historic Bridges in Illinois

3,065 bridges built before 1951 in Illinois still in service today.

Bridges Built Before 1951

The United States has 3,065 bridges in Illinois built before 1951 that remain in active service. These structures are 75+ years old — many predate modern engineering codes and were not designed for today's traffic volumes and vehicle weights. The average design life of a bridge is 50 years, making these aging structures a significant infrastructure concern.

Clear
Bridge State Condition Year Built Age (Years) ADT
GIRDER CR Illinois Poor 1900 126 200
SUGAR CR Illinois Poor 1900 126 100
ANDERSON BRANCH Illinois Poor 1900 126 100
BEAR CR. Illinois Fair 1900 126 50
Conner Branch Illinois Fair 1900 126 25
ROGERS DITCH Illinois Fair 1900 126 50
STREAM E OF US 45 Illinois Poor 1900 126 550
PATERSON BRANCH Illinois Fair 1900 126 25
NEW COLUMBIA DITCH Illinois Fair 1900 126 25
MASSAC CREEK Illinois Fair 1900 126 100
STREAM N OF OHIO RIV Illinois Poor 1900 126 75
TRIB TO Q DITCH Illinois Fair 1900 126 25
TRIB TO SEVENMILE CR Illinois Fair 1900 126 50
STREAM W OF POPE CO Illinois Good 1900 126 50
ICG RR Illinois Poor 1900 126 25
CABINESS CREEK Illinois Poor 1900 126 50
GROVE CREEK Illinois Poor 1900 126 75
TAR CK Illinois Poor 1900 126 50
GROVE CR Illinois Poor 1900 126 25
CLARY CR Illinois Fair 1900 126 50
CAMP CREEK Illinois Fair 1900 126 400
CAMP CREEK Illinois Fair 1900 126 25
DEERLICK BR. Illinois Poor 1900 126 25
LITTLE CAMP CR Illinois Fair 1900 126 25
E FORK SHOAL CREEK Illinois Fair 1900 126 1,450
MDL FK SHOP CREEK Illinois Fair 1900 126 75
MACOUPIN CREEK Illinois Fair 1900 126 25
W FORK SHOAL CR Illinois Fair 1900 126 25
MACOUPIN CK Illinois Fair 1900 126 50
LAKE FORK SHOAL CR Illinois Fair 1900 126 125
FAWN CREEK Illinois Poor 1900 126 25
STREAM Illinois Poor 1900 126 75
SO BR HILLSBORO LK Illinois Fair 1900 126 1,000
STREAM Illinois Fair 1900 126 25
CREEK Illinois Fair 1900 126 50
STREAM Illinois Fair 1900 126 25
HURRICANE CR Illinois Poor 1900 126 25
CREEK Illinois Poor 1900 126 150
DRY FORK Illinois Fair 1900 126 25
HURRICANE CR Illinois Poor 1900 126 25
WILLOW CRK. Illinois Fair 1900 126 150
LICK CRK Illinois Fair 1900 126 75
MAUVAISE CRK Illinois Fair 1900 126 150
CREEK Illinois Poor 1900 126 50
B&N RR Illinois Poor 1900 126 50
BR OF MUD RUN Illinois Good 1900 126 10
BR.OF BIG HOLLOW CR Illinois Poor 1900 126 25
SIXMILE CREEK Illinois Poor 1900 126 1,000
DODDS BRANCH Illinois Fair 1900 126 20
GALUM CREEK Illinois Poor 1900 126 50

About Historic Bridge Data

Bridges built before 1951 are classified as historic in this database. Many were designed to 1940s standards with lower load limits and narrower lanes. While FHWA requires regular inspections of all bridges regardless of age, older structures often require more frequent monitoring and rehabilitation investment.