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
TRIM CREEK Illinois Fair 1920 106 4,800
PIGEON CREEK Illinois Fair 1920 106 1,550
Sand Brook Illinois Fair 1921 105 50
CEDAR CREEK Illinois Poor 1921 105 325
ROCKY FORD CREEK Illinois Fair 1921 105 2,200
WEST FORK Illinois Fair 1921 105 25
MILLER BRANCH Illinois Poor 1921 105 50
MILLER BRANCH Illinois Poor 1921 105 100
BUTTERFIELD CREEK Illinois Fair 1921 105 6,550
VARIOUS CITY STREETS Illinois Poor 1921 105 24,300
LAND Illinois Good 1921 105 3,950
UNUSED LAND Illinois Fair 1921 105 11,500
UNION STATION TRACKS Illinois Poor 1921 105 5,100
KINZIE RR & MUNI STS Illinois Fair 1921 105 16,550
OLD HICKORY CREEK Illinois Fair 1921 105 3,500
STREAM S WHITTINGTON Illinois Fair 1921 105 6,350
PLEASANT HILL CREEK Illinois Fair 1921 105 50
TRIB TO LAMOINE Illinois Fair 1921 105 175
S HENDERSON CREEK Illinois Poor 1921 105 200
SUGAR CR Illinois Poor 1921 105 50
CASEY FORK Illinois Fair 1921 105 4,600
STREAM Illinois Poor 1921 105 4,150
DE ARCY CREEK Illinois Fair 1921 105 5,300
SNIPE HOLLOW BRANCH Illinois Fair 1921 105 75
BR OF CAMP CREEK Illinois Fair 1921 105 25
WALNUT CREEK Illinois Poor 1921 105 2,550
TRIB TO LITTLERS CRK Illinois Good 1921 105 100
OTTER CREEK Illinois Good 1921 105 400
STREAM Illinois Poor 1921 105 3,600
PRAIRIE CREEK Illinois Fair 1921 105 50
SHORT POINT CREEK Illinois Fair 1921 105 25
TRIB VERMILLION R Illinois Fair 1921 105 100
LAHARPE CREEK Illinois Fair 1921 105 350
BAPIST CREEK Illinois Fair 1921 105 400
DRAIN DITCH RUSH CR Illinois Fair 1921 105 275
CAHOKIA CREEK Illinois Fair 1921 105 2,800
HURRICANE CREEK Illinois Poor 1921 105 100
NORTH FORK Illinois Fair 1921 105 25
HALF-MILE CREEK Illinois Fair 1921 105 6,350
RICHLAND CREEK Illinois Fair 1921 105 550
STREAM Illinois Fair 1921 105 50
MACKINAW R OVERFLOW Illinois Fair 1921 105 2,250
STREAM Illinois Fair 1921 105 75
Little Muddy River Illinois Fair 1921 105 2,300
Nashville Creek W Branch Illinois Fair 1921 105 3,450
NASHVILLE CREEK Illinois Good 1921 105 3,300
Nashville Creek E Branch Illinois Fair 1921 105 3,300
Beaucoup Creek Illinois Fair 1921 105 2,050
BLACK CREEK Illinois Fair 1921 105 2,050
ENDSLEY CREEK Illinois Fair 1921 105 2,150

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.