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
WADDAMS CREEK Illinois Fair 1938 88 75
DITCH Illinois Fair 1938 88 25
BLUEGRASS CREEK Illinois Fair 1938 88 350
STREAM Illinois Fair 1938 88 18,800
STREAM Illinois Fair 1938 88 4,100
STONY CREEK Illinois Good 1938 88 2,650
STONY CREEK Illinois Fair 1938 88 3,450
SUGAR CREEK Illinois Fair 1938 88 4,050
LITTLE ROCK CREEK Illinois Poor 1938 88 100
CRAB ORCHARD LAKE Illinois Good 1938 88 6,150
ROCK RIVER Illinois Fair 1938 88 22,600
LITTLE GRASSY LK SPILLWY Illinois Fair 1939 87 800
Walnut Fork Creek Illinois Fair 1939 87 75
ELKHORN CREEK Illinois Poor 1939 87 1,050
Salt Fork River Illinois Good 1939 87 5,550
COTTON CREEK Illinois Fair 1939 87 500
BIG MUDDY CREEK Illinois Fair 1939 87 250
BRANCH SUGAR Illinois Fair 1939 87 450
POPLAR CREEK Illinois Fair 1939 87 18,800
RANGE CREEK Illinois Good 1939 87 100
WOLF CREEK Illinois Fair 1939 87 3,400
MORRIS CREEK Illinois Fair 1939 87 3,400
STREAM Illinois Fair 1939 87 3,250
STREAM Illinois Fair 1939 87 3,250
LITTLE SALT CREEK Illinois Good 1939 87 1,300
BISHOP CREEK Illinois Good 1939 87 850
DISMAL CREEK Illinois Good 1939 87 800
BIG CREEK Illinois Poor 1939 87 300
CREEK Illinois Good 1939 87 200
APPLE CREEK Illinois Fair 1939 87 2,150
LICK CREEK South Illinois Fair 1939 87 2,150
CREEK Illinois Good 1939 87 400
LONG CREEK Illinois Fair 1939 87 2,150
HOG RUN Illinois Poor 1939 87 1,100
BILLS RUN Illinois Poor 1939 87 1,100
WAUPECON CREEK Illinois Poor 1939 87 1,100
N BR LANGAN CR Illinois Fair 1939 87 50
SHAVETAIL CR Illinois Fair 1939 87 25
PRAIRIE CR Illinois Fair 1939 87 50
HALLS CREEK Illinois Fair 1939 87 2,800
FOX RIVER Illinois Fair 1939 87 175
SCRUB CREEK Illinois Fair 1939 87 25
FOX RIVER Illinois Poor 1939 87 12,400
EXLINE SLOUGH Illinois Fair 1939 87 1,700
LONE STAR CEMENT RR Illinois Fair 1939 87 4,250
STREAM Illinois Fair 1939 87 50
ILL & MICH CANAL Illinois Fair 1939 87 5,800
LITTLE BONPAS CREEK Illinois Poor 1939 87 1,100
UP RR Illinois Good 1939 87 2,950
BIG BUREAU CREEK Illinois Poor 1939 87

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.