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
SANGAMON RIVER Illinois Fair 1926 100 13,200
M. F. SUGAR CREEK Illinois Poor 1926 100 50
GRAND POINT CR Illinois Fair 1926 100 25
SPRING CREEK Illinois Fair 1926 100 11,600
KISHWAUKEE RIVER Illinois Fair 1926 100 4,350
BR KILBUCK CR Illinois Poor 1926 100 475
TRIB TO BEAVER CREEK Illinois Fair 1927 99 250
TRIB TO BEAVER CREEK Illinois Fair 1927 99 3,500
RUSH CREEK Illinois Fair 1927 99 1,400
BRANCH OF PLUM R Illinois Fair 1927 99 50
BRANCH OF CARROLL CK Illinois Fair 1927 99 150
LAKE FORK Illinois Poor 1927 99 20
RR - IHB Illinois Poor 1927 99 13,700
W FK N BR CHI RIV Illinois Fair 1927 99 18,900
LITTLE CAL RIVER Illinois Good 1927 99 7,800
SALT CREEK Illinois Fair 1927 99 18,200
SPRING CREEK Illinois Fair 1927 99 9,500
DITCH Illinois Fair 1927 99 50,800
MARLEY CRK S-XING Illinois Good 1927 99 6,900
BR OF SALT CREEK Illinois Poor 1927 99 18,200
S BR CHICAGO RIV Illinois Poor 1927 99 6,600
SANITARY SHIP CANAL Illinois Poor 1927 99 50,400
CALUMET RIVER Illinois Poor 1927 99 3,100
DESPLAINES RIV Illinois Fair 1927 99 5,650
DRY FORK Illinois Good 1927 99 3,550
KASKASKIA RIVER Illinois Poor 1927 99 3,550
FLOUR CREEK Illinois Fair 1927 99 1,250
MISSISSIPPI RIVER Illinois Poor 1927 99 2,500
SHAVETAIL CREEK Illinois Poor 1927 99 1,000
MARTINTON DCH NO 3 Illinois Poor 1927 99 125
PLUM RIVER Illinois Fair 1927 99 75
WELCH CREEK Illinois Fair 1927 99 4,950
DRAINAGE DITCH Illinois Poor 1927 99 450
SKOKIE RIVER Illinois Fair 1927 99 15,000
KEMPERS CREEK Illinois Fair 1927 99 325
VERMILION RIVER Illinois Good 1927 99 4,100
SHORT POINT CR Illinois Fair 1927 99 350
SCATTERING POINT Illinois Fair 1927 99 25
SCATTERING POINT Illinois Fair 1927 99 75
TRIB SHORT POINT CR Illinois Fair 1927 99 25
CREEK Illinois Fair 1927 99 25
NIPPERSINK CREEK Illinois Fair 1927 99 7,600
NASSA CR. Illinois Fair 1927 99 300
Paddock Creek Branch Illinois Poor 1927 99 5,650
Trib to Indian Creek Illinois Poor 1927 99 8,050
DITCH Illinois Fair 1927 99 1,200
Dennis Hollow Illinois Poor 1927 99 1,350
FOUNTAIN CREEK Illinois Fair 1927 99 3,350
MAUVAISE TERRE CR Illinois Good 1927 99 2,800
SPOON RIVER Illinois Poor 1927 99 2,450

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.