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
CAL SAG CHANNEL Illinois Fair 1934 92 20,500
SILVER CREEK Illinois Fair 1934 92 27,400
RR - EJ&E Illinois Fair 1934 92 12,400
S BR CHICAGO RIVER Illinois Poor 1934 92 6,050
DRY FORK Illinois Fair 1934 92 1,550
DES PLAINES RIVER Illinois Fair 1934 92 32,400
NORFOLK SOUTHERN RR Illinois Fair 1934 92 4,200
SANDY RUN Illinois Fair 1934 92 375
OVERFLOW TO BIGCREEK Illinois Good 1934 92 625
HICKORY CREEK Illinois Fair 1934 92 600
HURRICANE CREEK Illinois Fair 1934 92 550
RAMSEY CREEK Illinois Good 1934 92 725
TRIB HURRICANE CREEK Illinois Good 1934 92 600
DRAIN DITCH Illinois Fair 1934 92 1,100
STREAM Illinois Good 1934 92 125
BNSF RR Illinois Fair 1934 92 3,300
OTTER CR Illinois Fair 1934 92 550
DUCK CR Illinois Poor 1934 92 2,100
BR OF SWEGLE CR Illinois Fair 1934 92 400
WOODS RUN Illinois Fair 1934 92 1,450
HENDERSON OVERFLOW Illinois Fair 1934 92 275
STREAM Illinois Fair 1934 92 2,050
PENNY SLOUGH Illinois Good 1934 92 2,200
PRAIRIE CR Illinois Poor 1934 92 25
SIX MILE CREEK Illinois Fair 1934 92 2,700
CN RR Illinois Fair 1934 92 2,850
N FORK PLUM RIVER Illinois Fair 1934 92 50
ABANDONED RR Illinois Good 1934 92 1,200
BIG ROCK CREEK Illinois Fair 1934 92 2,200
DRAINAGE DITCH Illinois Fair 1934 92 1,300
WALNUT CREEK Illinois Good 1934 92 300
VERMILION RIVER Illinois Fair 1934 92 1,650
BUCK CREEK Illinois Fair 1934 92 450
PERSON CREEK Illinois Fair 1934 92 1,300
BUCK CREEK Illinois Good 1934 92 50
OTTER CREEK Illinois Fair 1934 92 275
BRANCH LITTLE BONPAS Illinois Fair 1934 92 850
Trib to Raccoon Cree Illinois Poor 1934 92 35
LAKE FORK OVERFLOW Illinois Fair 1934 92 800
SALT CK OVERFLOW Illinois Fair 1934 92 900
STREAM Illinois Fair 1934 92 900
BRANCH MONEY CREEK Illinois Good 1934 92 900
COOP BRANCH E Illinois Fair 1934 92 1,800
TRIB TO SILVER CREEK Illinois Good 1934 92 5,750
ILL RIVER CROMWELL DR Illinois Poor 1934 92 2,200
WOODS CREEK Illinois Fair 1934 92 2,300
MARTIN CREEK Illinois Fair 1934 92 950
N FK BROWER CREEK Illinois Fair 1934 92 775
MIDDLE FK MCKEE CR Illinois Fair 1934 92 725
HILL CREEK Illinois Fair 1934 92 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.