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
CRABAPPLE CREEK Illinois Good 1931 95 1,350
SALT FORK Illinois Poor 1931 95 150
STREAM Illinois Fair 1931 95 3,450
STREAM Illinois Fair 1931 95 2,550
TRIB CASSER CREEK Illinois Fair 1931 95 450
UNKNOWN STREAM Illinois Fair 1931 95 75
STREAM Illinois Good 1931 95
CACHE RIVER Illinois Fair 1931 95 1,350
BELL POND CREEK Illinois Fair 1931 95 900
FOX RIVER Illinois Poor 1931 95 9,850
FOX RIVER Illinois Fair 1931 95 11,900
YOUNGS CREEK Illinois Fair 1931 95 2,500
WELCH CREEK Illinois Fair 1931 95 1,050
MACON CREEK Illinois Fair 1931 95 650
CEDAR FORK CREEK Illinois Poor 1931 95 50
CEDAR CREEK Illinois Good 1931 95 1,500
BOAT CHANNEL Illinois Good 1931 95 11,200
BANGS LAKE OUTLET Illinois Fair 1931 95 16,200
SEQUOIT CREEK Illinois Fair 1931 95 13,900
FOX RIVER Illinois Poor 1931 95 1,850
UNKNOWN STREAM Illinois Fair 1931 95 1,850
TR-209 & WABASH RV Illinois Fair 1931 95 5,000
BRANCH LITTLE BONPAS Illinois Fair 1931 95 775
OTTER POND DRAIN DT Illinois Poor 1931 95 50
SUGAR CREEK Illinois Fair 1931 95 50
DRAINAGE DITCH Illinois Fair 1931 95 600
CREEK Illinois Fair 1931 95 575
DIAMOND CREEK Illinois Fair 1931 95 10
MOON CREEK Illinois Poor 1931 95 75
SUGAR CREEK Illinois Fair 1931 95 2,000
NORTH BR LAKE FORK Illinois Fair 1931 95 2,850
TROUBLESOME CREEK Illinois Good 1931 95 650
E Fork Lamoine River Illinois Poor 1931 95 550
CREEK Illinois Fair 1931 95 3,750
MACOUPIN CREEK Illinois Fair 1931 95 900
WHITE OAK CREEK Illinois Fair 1931 95 1,750
HENDERSON CR Illinois Poor 1931 95 2,400
APPLE CREEK Illinois Fair 1931 95 1,700
MADDEN CREEK Illinois Good 1931 95 1,950
CREEK Illinois Fair 1931 95 1,250
FRIENDS CREEK DITCH Illinois Fair 1931 95 1,250
CREEK Illinois Fair 1931 95 1,250
DRAINAGE DITCH Illinois Fair 1931 95 3,850
DRAINAGE DITCH Illinois Fair 1931 95 4,550
WOLF RUN CREEK Illinois Fair 1931 95 2,050
INDIAN CREEK Illinois Fair 1931 95 1,700
TRIB PECATONICA R Illinois Fair 1931 95 1,250
YELLOW CREEK Illinois Poor 1931 95 100
STREAM Illinois Good 1931 95 900
UNNAMED CREEK Illinois Good 1931 95 1,650

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.