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
UNION PACIFIC RR Illinois Good 1940 86 1,400
UP RR Illinois Good 1940 86 400
S BR KISHWAUKEE RIV. Illinois Fair 1940 86 7,650
STREAM Illinois Fair 1940 86 375
STREAM Illinois Fair 1940 86 75
STREAM Illinois Fair 1940 86 50
STREAM Illinois Fair 1940 86 50
STREAM Illinois Fair 1940 86 75
STREAM Illinois Fair 1940 86 50
LITTLE WABASH RIVER Illinois Fair 1940 86 600
SUGAR CREEK Illinois Fair 1940 86 700
SUGAR CREEK Illinois Fair 1940 86 1,050
RACCOON CREEK Illinois Poor 1940 86 25
BEAR CREEK Illinois Fair 1940 86 20
NORTH FORK CREEK Illinois Poor 1940 86 50
TRIB LITTLE HICKORY Illinois Fair 1940 86 75
EAST FORK Illinois Fair 1940 86 75
TOWN BRANCH CREEK Illinois Poor 1940 86 875
CYPRESS DITCH Illinois Poor 1940 86 10
Shaffer Hollow Creek Illinois Good 1940 86 400
Bushnell Hollow Illinois Fair 1940 86 625
Robley Hollow Illinois Good 1940 86 400
HURRICANE CREEK Illinois Good 1940 86 400
STREAM Illinois Fair 1940 86 400
JOHNNY RUN Illinois Poor 1940 86 225
TRIB TO HICKS BRANCH Illinois Good 1940 86 100
MUD CREEK Illinois Fair 1940 86 75
WALKER CREEK Illinois Poor 1940 86 50
TRIB VERMILION RIVER Illinois Fair 1940 86 350
TRIB OF SPRING CR Illinois Good 1940 86 200
SCRUB CREEK Illinois Poor 1940 86 225
E FK OF GALENA RIVER Illinois Poor 1940 86 275
WOLF CREEK Illinois Poor 1940 86 225
FOX RIVER Illinois Fair 1940 86 4,300
ILL MICH CANAL Illinois Poor 1940 86 5,550
HOG RUN CREEK Illinois Fair 1940 86 300
BR WOLF CREEK Illinois Fair 1940 86 1,150
VERMILION RIVER Illinois Poor 1940 86 250
GOOSE CR Illinois Poor 1940 86 650
BAILEY CR Illinois Good 1940 86 325
TRIB W FORK MAZON R Illinois Fair 1940 86 75
W FORK MAZON R Illinois Fair 1940 86 75
TRIB W F MAZON R Illinois Fair 1940 86 25
CREEK Illinois Fair 1940 86 25
DRAINAGE DITCH Illinois Poor 1940 86 50
DRAINAGE DITCH Illinois Poor 1940 86 50
DRAINAGE DITCH Illinois Fair 1940 86 50
DRAINAGE DITCH Illinois Fair 1940 86 25
LAKE FORK CREEK Illinois Fair 1940 86 1,400
LAKE FORK CK Illinois Fair 1940 86 550

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.