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
KASKASKIA RIVER Illinois Poor 1909 117 25
SCHWARTZ BRANCH Illinois Good 1909 117 275
RACCOON CREEK Illinois Good 1909 117 125
WEBSTER CREEK Illinois Fair 1909 117 25
PAINTROCK CREEK Illinois Good 1909 117 1,000
CREEK Illinois Fair 1909 117
SCHWARTZ BRANCH Illinois Fair 1909 117 75
ICG RR Illinois Poor 1909 117 10
WHITLEY CREEK Illinois Fair 1909 117 25
CREEK Illinois Fair 1909 117 50
HURRICANE CREEK Illinois Fair 1909 117 35
LONG BRANCH Illinois Poor 1909 117 20
JACK OAK CREEK Illinois Fair 1909 117 50
GOOSE CREEK Illinois Fair 1909 117 100
CREEK Illinois Poor 1909 117 50
BIG CREEK Illinois Fair 1909 117 300
CREEK Illinois Fair 1909 117 10
PAUL CREEK Illinois Fair 1909 117 25
BONPAS CREEK Illinois Poor 1909 117 25
Paul Creek Illinois Poor 1909 117 50
HURRICANE CREEK Illinois Poor 1909 117 35
EAST FORK WETWEATHER Illinois Fair 1909 117 50
E FK BONPAS CREEK Illinois Poor 1909 117 100
ROBINSON CREEK Illinois Fair 1909 117 350
OPPOSSUM CREEK Illinois Poor 1909 117 100
STREAM Illinois Fair 1909 117 75
STREAM Illinois Poor 1909 117 50
ANGLE BRANCH Illinois Fair 1909 117 50
STREAM Illinois Poor 1909 117 50
RICHLAND CREEK Illinois Poor 1909 117 50
JORDAN CREEK Illinois Fair 1909 117 150
ROCKY BRANCH Illinois Poor 1909 117 35
BRUSH CREEK Illinois Poor 1909 117 25
STREAM Illinois Fair 1909 117 50
RICHLAND CREEK Illinois Poor 1909 117 75
BR LITTLE WABASH R Illinois Poor 1909 117 35
STREAM Illinois Fair 1909 117 125
STREAM Illinois Fair 1909 117 25
STREAM Illinois Fair 1909 117 100
STREAM Illinois Fair 1909 117 50
STREAM Illinois Fair 1909 117 100
RICHLAND CREEK Illinois Fair 1909 117 50
STREAM Illinois Fair 1909 117 350
STREAM Illinois Fair 1909 117 50
JORDAN CREEK Illinois Fair 1909 117 275
SORGHUM BRANCH Illinois Fair 1909 117 75
STREAM Illinois Good 1909 117 50
RICHLAND CREEK Illinois Fair 1909 117 50
SWAFFORD CREEK Illinois Poor 1909 117 75
W BR LITTLE WABASH R Illinois Fair 1909 117 450

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.