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
SNIPE HOLLOW BR Illinois Fair 1920 106 350
CAMP CREEK Illinois Poor 1920 106 50
CAVE CREEK Illinois Fair 1920 106 2,000
INDIAN CREEK Illinois Fair 1920 106 475
GUM CREEK Illinois Poor 1920 106 175
GUM CR Illinois Poor 1920 106 125
B & O RR Illinois Poor 1920 106 100
WEST FORK MAZON R Illinois Poor 1920 106 50
MOLE CREEK Illinois Fair 1920 106 50
VERMILION R Illinois Good 1920 106 50
WOLF CREEK Illinois Poor 1920 106 100
DRAINAGE DITCH Illinois Fair 1920 106 50
LONGMEYER DITCH Illinois Good 1920 106 525
GRINDSTONE CREEK Illinois Fair 1920 106 50
MOKELER CREEK Illinois Fair 1920 106 250
BRANCH-SUGAR CR Illinois Fair 1920 106 100
HONEY CREEK Illinois Poor 1920 106 20
CAHOKIA CR Illinois Fair 1920 106 175
SPANKER BR Illinois Fair 1920 106 150
LOUSE RUN TRIBUTARY Illinois Fair 1920 106 2,750
LOST CREEK Illinois Poor 1920 106 175
WEBSTER CREEK Illinois Fair 1920 106 150
CREEK Illinois Fair 1920 106 175
CREEK Illinois Fair 1920 106 150
MALLARD CREEK Illinois Fair 1920 106 100
Ditch Illinois Poor 1920 106 1,350
DITCH Illinois Fair 1920 106 850
CHICKEN CREEK Illinois Good 1920 106 175
HADLEY CR TRIBUTARY Illinois Fair 1920 106 50
WALNUT CR TRIBUTARY Illinois Poor 1920 106 25
BUCKHORN CREEK Illinois Poor 1920 106 25
BUCKHORN CREEK Illinois Poor 1920 106 20
MIDDLE FK MCKEE TR1B Illinois Poor 1920 106 50
INDIAN CAMP CREEK Illinois Fair 1920 106 1,000
CACHE RIVER Illinois Fair 1920 106 1,900
SENACHWINE CREEK Illinois Fair 1920 106 550
RAYHILLS SLOUGH Illinois Fair 1920 106 2,000
STREAM Illinois Poor 1920 106 50
BR OF WADDAMS CREEK Illinois Fair 1920 106 75
CRANE CREEK Illinois Fair 1920 106 1,500
LITTLE CREEK Illinois Fair 1920 106 25
STREAM Illinois Fair 1920 106 50
BR WILLIAMS CR Illinois Poor 1920 106 50
NASHVILLE CREEK Illinois Fair 1920 106 675
NASHVILLE CREEK Illinois Fair 1920 106 700
BR NORTH CREEK Illinois Poor 1920 106 10
BR NORTH CREEK Illinois Poor 1920 106 25
LITTLE MUDDY RIVER Illinois Fair 1920 106 25
STREAM Illinois Fair 1920 106 725
STREAM Illinois Fair 1920 106 725

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.