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
N BR CHICAGO RIVER Illinois Fair 1919 107 9,700
N BR CHICAGO RIV Illinois Fair 1919 107 13,700
E FORK OF BIG CREEK Illinois Poor 1919 107 75
LILLY CREEK Illinois Poor 1919 107 10
SECOND CREEK Illinois Fair 1919 107 4,450
BRANCH OF TILTON CR. Illinois Poor 1919 107 50
TRIB OF SPRING CR Illinois Poor 1919 107 50
MIDDLE FORK PLUM RIV Illinois Fair 1919 107 75
SHORT POINT CREEK Illinois Fair 1919 107 1,000
APPLE CREEK Illinois Fair 1919 107 425
GIRDER BR Illinois Poor 1919 107 2,650
IL RIVER TRIB Illinois Poor 1919 107 200
FANCY CREEK Illinois Poor 1919 107 2,450
SPOON RIVER Illinois Good 1919 107 25
YELLOW CREEK Illinois Poor 1919 107 950
BR BEAVER POND CREEK Illinois Fair 1919 107 475
PLUM CR Illinois Fair 1919 107 3,500
KEITH CREEK Illinois Poor 1919 107 375
TRIB OF SHOAL CK Illinois Poor 1920 106 50
MISSOURI CREEK Illinois Poor 1920 106 75
W. BUREAU CR. Illinois Fair 1920 106 125
BRANCH OF POND CREEK Illinois Fair 1920 106 100
OTTER CREEK Illinois Fair 1920 106 50
BRANCH OF ELKHORN CR Illinois Fair 1920 106 150
BNSF RR Illinois Poor 1920 106 50
LOCUST CREEK Illinois Fair 1920 106 500
CLEAR CREEK Illinois Poor 1920 106 150
BRUSH CREEK Illinois Fair 1920 106 100
COTTONWOOD BRANCH Illinois Fair 1920 106 50
ACHENBACH BRANCH Illinois Poor 1920 106 50
THORN CREEK Illinois Fair 1920 106 6,150
ADDISON CREEK Illinois Fair 1920 106 4,100
MAIN BR CHICAGO RIV Illinois Poor 1920 106 16,550
MAIN BR CHICAGO RIV Illinois Poor 1920 106 24,300
N BR CHICAGO RIVER Illinois Fair 1920 106 19,100
VARIOUS CITY STS Illinois Fair 1920 106 24,300
UNION STATION TRACKS Illinois Fair 1920 106 6,200
TRIB TO POPLAR CR Illinois Fair 1920 106 11,800
DRAINAGE DITCH Illinois Fair 1920 106 50
E FORK OF BIG CREEK Illinois Poor 1920 106 50
FLAT CREEK Illinois Fair 1920 106 50
LITTLE CREEK Illinois Fair 1920 106 125
STREAM Illinois Poor 1920 106 25
DRAINAGE DITCH Illinois Poor 1920 106 125
TURNER CREEK Illinois Poor 1920 106 125
MUD CREEK Illinois Poor 1920 106 75
SHAVETAIL CR Illinois Fair 1920 106 50
TRIB LITTLE MUD CK Illinois Poor 1920 106 50
CRABORCHARD CREEK Illinois Poor 1920 106 3,500
DAVIS CREEK Illinois Poor 1920 106 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.