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
PARIRIE CREEK Illinois Poor 1945 81 50
TRIB VERMILLION R Illinois Fair 1945 81 25
DRAINAGE DITCH Illinois Good 1945 81 100
SALT CK TRIB Illinois Fair 1945 81 350
TRIB COON CREEK Illinois Poor 1945 81 1,150
STREAM Illinois Fair 1945 81 75
CHICAGO + N W R R Illinois Good 1945 81 2,400
BR OF PRESTON CREEK Illinois Fair 1945 81 800
STREAM Illinois Fair 1945 81 200
FOUR MILE CREEK Illinois Fair 1945 81 50
DRAINAGE DITCH Illinois Fair 1945 81 225
E.Brnch Panther Crk Illinois Fair 1945 81 25
MILL CREEK Illinois Fair 1945 81 350
I- 94 BISHOP FORD Illinois Poor 1946 80 3,275
N BR CHICAGO RIVER Illinois Poor 1946 80 6,750
FLAG CREEK Illinois Fair 1946 80 6,300
BUTTERFIELD CREEK Illinois Fair 1946 80 19,200
SOMONAUK CREEK Illinois Fair 1946 80 1,550
E.BRANCH DU PAGE RV Illinois Poor 1946 80 19,200
W BRANCH DU PAGE RV Illinois Fair 1946 80 5,600
VANDALIA RR Illinois Fair 1946 80 6,850
BARKER CREEK Illinois Poor 1946 80 75
HURRICANE CREEK Illinois Fair 1946 80 625
Dayton Hollow Creek Illinois Fair 1946 80 500
WOLF CREEK Illinois Fair 1946 80 50
MUDDY CREEK Illinois Fair 1946 80 4,100
MAIN DITCH CH 14 AMB Illinois Fair 1946 80 550
GREEN RIVER Illinois Fair 1946 80 150
TURKEY CREEK Illinois Fair 1946 80 3,100
MACKINAW RIVER Illinois Fair 1946 80 950
CNTRYCLB BR SUGAR CR Illinois Fair 1946 80 6,400
CNTRYCLB BR SUGAR CR Illinois Poor 1946 80 125
CNTRYCLB BR SUGAR CR Illinois Fair 1946 80 150
CNTRYCLB BR SUGAR CR Illinois Fair 1946 80 75
US ROUTE 67 Illinois Poor 1946 80 2,750
SKILLET FORK CREEK Illinois Fair 1946 80 1,000
PIATT CREEK Illinois Fair 1946 80 650
TR 182A/KCS RR Illinois Fair 1946 80 2,400
UNNAMED CREEK Illinois Fair 1946 80 300
KASKASKIA RIVER Illinois Poor 1946 80 3,600
KASKASKIA OVERFLOW Illinois Fair 1946 80 3,600
PECATONICA RIVER Illinois Fair 1946 80 4,150
LITTLE MACKINAW RI Illinois Fair 1946 80 800
LITTLE MACKINAW RIVE Illinois Poor 1946 80 10
UNION PACIFIC RR Illinois Fair 1946 80 5,550
DRY CREEK Illinois Fair 1946 80 150
SNAG CREEK Illinois Fair 1946 80 50
OWL CREEK Illinois Poor 1947 79 1,100
BRANCH E BUREAU CREE Illinois Fair 1947 79 100
INDIAN RUN Illinois Fair 1947 79 600

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.