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
JOE CREEK Illinois Poor 1916 110 50
CREEK Illinois Fair 1916 110 20
PADDOCK CREEK Illinois Fair 1916 110 125
HORSE CRK. Illinois Poor 1916 110 20
TRIB TO SILVER CK Illinois Fair 1916 110 200
HURRICANE CR Illinois Fair 1916 110 25
FARGO RUN Illinois Poor 1916 110 75
HADLEY CR TRIBUTARY Illinois Fair 1916 110 25
Little Blue Creek Illinois Good 1916 110 50
STREAM Illinois Fair 1916 110 1,000
HORNEY BRANCH Illinois Fair 1916 110 150
W BR LITTLE WABASH R Illinois Poor 1916 110 475
FLAT BRANCH Illinois Fair 1916 110 50
STREAM Illinois Fair 1916 110 50
STREAM Illinois Fair 1916 110 50
BR CROOKED CR Illinois Fair 1916 110 25
NORTH CREEK Illinois Fair 1916 110 500
BR LITTLE CROOKED CR Illinois Fair 1916 110 50
BR GRAND POINT CR Illinois Fair 1916 110 50
JACKSON CREEK Illinois Good 1916 110 9,150
BRANCH OF DRY BRANCH Illinois Fair 1917 109 25
BRUSHY BRANCH Illinois Fair 1917 109 50
WILLOW CREEK Illinois Fair 1917 109 10
N BR CHICAGO RIVER Illinois Fair 1917 109 11,600
SHORT CREEK Illinois Poor 1917 109 20
MIDDLE CREEK Illinois Poor 1917 109 50
CAMP CREEK Illinois Poor 1917 109 75
MUD CR Illinois Poor 1917 109 25
FOX RIVER Illinois Poor 1917 109 16,900
COOP BR Illinois Poor 1917 109 100
WHITLEY CREEK Illinois Poor 1917 109 100
BILLS CREEK Illinois Fair 1917 109 100
WILLOW CREEK Illinois Fair 1917 109 50
COON BRANCH Illinois Fair 1917 109 50
DODDS BRANCH Illinois Fair 1917 109 20
PLUM CREEK Illinois Fair 1917 109 225
GRINDSTONE CRK. Illinois Fair 1918 108 50
TILTON CREEK Illinois Fair 1918 108 50
W FK OF BEAR CREEK Illinois Fair 1918 108 50
LITTLE BEAVER CREEK Illinois Poor 1918 108 2,000
TRIB LITTLE MUD CR Illinois Poor 1918 108 150
TRIB TO SUGAR FK Illinois Fair 1918 108 50
NORTH FORK Illinois Fair 1918 108 25
SILVER CK OVFL Illinois Fair 1918 108 16,000
BR GRAND POINT CR Illinois Fair 1918 108 50
OAK BRANCH Illinois Fair 1919 107 100
PAPER MILL BRANCH Illinois Poor 1919 107 300
TOOLE CREEK Illinois Fair 1919 107 425
BRANCH SUGAR CREEK Illinois Fair 1919 107 100
S BR CHICAGO RIV Illinois Fair 1919 107 4,650

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.