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
RR - CN Illinois Fair 1935 91 24,100
HURRICANE CR BRANCH Illinois Fair 1935 91 1,700
CAMP CREEK Illinois Fair 1935 91 700
LYNN CREEK Illinois Fair 1935 91 250
LITTLE CREEK Illinois Poor 1935 91 125
TRIB BECKS CREEK Illinois Fair 1935 91 150
BEAR CREEK Illinois Fair 1935 91 75
CAMP CREEK Illinois Fair 1935 91 20
SUCK CREEK Illinois Fair 1935 91 50
TRIB LONE GROVE BR Illinois Fair 1935 91 50
Trib. Dismal Creek Illinois Fair 1935 91 50
TRIB DISMAL CREEK Illinois Fair 1935 91 150
STREAM Illinois Good 1935 91 125
KERTON CR Illinois Fair 1935 91 550
THOMPSON LAKE DIT Illinois Fair 1935 91 10
STREAM Illinois Fair 1935 91 1,850
CHANEY CREEK Illinois Fair 1935 91 1,650
HARRIS CREEK Illinois Fair 1935 91 1,100
BR OF ROCK CR Illinois Fair 1935 91 1,100
GREEN RIVER TRIB Illinois Poor 1935 91 150
MUD CREEK Illinois Fair 1935 91 225
SPRING CREEK Illinois Fair 1935 91 850
AUSTIN CREEK Illinois Poor 1935 91 750
SPRING CREEK Illinois Poor 1935 91 850
JOHNSON CREEK Illinois Fair 1935 91 750
CREEK Illinois Fair 1935 91 850
DRAINAGE Illinois Fair 1935 91 775
OTTER CREEK Illinois Good 1935 91 175
OTTER CREEK Illinois Good 1935 91 175
CLEAR CREEK Illinois Poor 1935 91 125
MILL CREEK Illinois Fair 1935 91 21,500
FOX RIVER Illinois Fair 1935 91 15,500
FOURMILE GROVE Illinois Fair 1935 91 250
PRAIRIE CREEK Illinois Fair 1935 91 450
OTTER CREEK Illinois Good 1935 91 1,700
Ida Creek Illinois Poor 1935 91 200
DRAINAGE DITCH Illinois Fair 1935 91 10
DRAINAGE DITCH Illinois Fair 1935 91 25
WOLFDEN CR Illinois Fair 1935 91 50
MATODD BRANCH Illinois Fair 1935 91 50
BR CROW CREEK Illinois Good 1935 91 75
SNAG CREEK Illinois Poor 1935 91 50
FOUNTAIN CK Illinois Fair 1935 91 200
BNSF & UPRR KICKAPOO Illinois Poor 1935 91 8,100
BNSF (094069E) Illinois Fair 1935 91 1,850
BETTELL CREEK Illinois Fair 1935 91 500
MOORE CREEK Illinois Good 1935 91 700
BUCKHORN CREEK Illinois Fair 1935 91 500
DRAINAGE DITCH Illinois Fair 1935 91 650
Metrolink Illinois Good 1935 91 14,700

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.