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
MUD CREEK Illinois Good 1900 126 100
LITTLE GALUM CREEK Illinois Fair 1900 126 100
GALUM CREEK Illinois Good 1900 126 100
TRIB TO BONNIE CREEK Illinois Good 1900 126 100
MOORES BRANCH Illinois Fair 1900 126 50
BOARD TREE BRANCH Illinois Good 1900 126 100
DRAINAGE DITCH Illinois Fair 1900 126 50
LAKE FORK Illinois Fair 1900 126 50
STREAM Illinois Good 1900 126 150
BUCK BRANCH Illinois Fair 1900 126 75
BUCK BRANCH Illinois Fair 1900 126 75
BUCK BRANCH Illinois Poor 1900 126 50
BROWN CREEK Illinois Fair 1900 126 25
HADLEY CR TRIBUTARY Illinois Fair 1900 126 50
HORTON CR TRIBUTARY Illinois Fair 1900 126 25
BOYD DITCH Illinois Fair 1900 126 25
HADLEY CR TRIBUTARY Illinois Poor 1900 126 25
CREEK Illinois Poor 1900 126 10
UNNAMED STREAM Illinois Poor 1900 126 10
ALL FORKS CREEK Illinois Good 1900 126 350
STREAM Illinois Fair 1900 126 10
STREAM Illinois Fair 1900 126 25
STREAM Illinois Fair 1900 126 125
FANCY CREEK Illinois Fair 1900 126 175
RICHLAND CREEK Illinois Fair 1900 126 50
LITTLE SPRING CREEK Illinois Good 1900 126 1,050
HENKLE CREEK Illinois Fair 1900 126 50
WOLF CREEK Illinois Poor 1900 126 125
NO FORK CLEAR CREEK Illinois Fair 1900 126 50
HARRIS BRNCH Illinois Poor 1900 126 25
STONY CREEK Illinois Poor 1900 126 50
BN RR Illinois Poor 1900 126 25
BN RR Illinois Poor 1900 126 50
LAKE FORK TRIB Illinois Fair 1900 126 50
STREAM Illinois Fair 1900 126 100
SPOON RIVER Illinois Good 1900 126 25
TRIB OF INDIAN CREEK Illinois Fair 1900 126 25
STREAM Illinois Fair 1900 126 50
CREEK Illinois Fair 1900 126 6,150
STREAM Illinois Fair 1900 126 725
STREAM Illinois Fair 1900 126 100
DRAINAGE DITCH Illinois Fair 1900 126 50
STREAM Illinois Fair 1900 126 375
STREAM Illinois Good 1900 126 10
RR CITY PARK Illinois Fair 1900 126 60
CREEK Illinois Fair 1900 126 125
CREEK Illinois Fair 1900 126 225
CROOKED CREEK Illinois Poor 1900 126 100
YANKEE BRANCH Illinois Fair 1900 126 250
OLIVE BRANCH Illinois Fair 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.