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
ANDY CREEK Illinois Good 1938 88 1,450
SHAW CREEK Illinois Fair 1938 88 450
COAL CREEK Illinois Poor 1938 88 50
Trib to Sandy Creek Illinois Fair 1938 88 1,350
HURRICANE CREEK Illinois Fair 1938 88 1,350
HURRICANE CREEK Illinois Fair 1938 88 300
DUGOUT CREEK Illinois Fair 1938 88 1,000
TURNER CREEK Illinois Poor 1938 88 4,550
MOSQUITO CREEK Illinois Poor 1938 88 75
GENESEO CREEK Illinois Fair 1938 88 550
JEFFERSON CREEK Illinois Fair 1938 88 425
POSSUM TROT DITCH Illinois Poor 1938 88 300
OTTER CREEK Illinois Good 1938 88 950
COON CREEK Illinois Fair 1938 88 775
DRAINS TO EAGLE LAKE Illinois Poor 1938 88 775
GRAHAM HOLLOW CREEK Illinois Fair 1938 88 1,850
KKK RIVER S BR. Illinois Fair 1938 88 9,750
BAKER CR Illinois Fair 1938 88 4,250
LEHIGH RUN Illinois Fair 1938 88 350
LITTLE VERMILION RV Illinois Good 1938 88 425
PRAIRIE CREEK Illinois Fair 1938 88 25
CREEK Illinois Poor 1938 88 50
CREEK Illinois Fair 1938 88 10
DRAINAGE DITCH Illinois Poor 1938 88 25
DRAINAGE DITCH Illinois Poor 1938 88 10
SALT CK TRIB Illinois Fair 1938 88 50
SALT CK TRIB Illinois Fair 1938 88 50
SALT CK TRIB Illinois Fair 1938 88 50
KJRY BNSFRRS Illinois Fair 1938 88 3,000
FOX RIVER Illinois Fair 1938 88 10,150
BRANCH MONEY CREEK Illinois Poor 1938 88 175
EAST FRK OTTER CR Illinois Good 1938 88 1,850
SILVER CREEK Illinois Good 1938 88 7,850
WILLS CREEK Illinois Good 1938 88 175
SANGAMON RIVER Illinois Fair 1938 88 1,750
SANGAMON R OVERFLOW Illinois Poor 1938 88 1,750
TAR CREEK Illinois Fair 1938 88 1,750
W FORK BLUE GRASS CR Illinois Fair 1938 88 900
BLUE GRASS CREEK Illinois Fair 1938 88 900
HADLEY CREEK Illinois Good 1938 88 1,350
KISER CREEK Illinois Fair 1938 88 775
AMBROSIA CREEK Illinois Fair 1938 88 1,100
TWO MILE CREEK Illinois Good 1938 88 1,200
6 MILE BAY DIVERSION Illinois Fair 1938 88 725
POST CR CUT-OFF Illinois Poor 1938 88 650
ROCK RIVER SIDE RD Illinois Poor 1938 88 11,400
DRAINAGE DITCH Illinois Fair 1938 88 525
BRANCH OF MISS RIVER Illinois Good 1938 88 800
TRIB MID FK SALINE R Illinois Fair 1938 88 1,250
SEXSON BRANCH Illinois Fair 1938 88 450

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.