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
CYPRESS CREEK Illinois Poor 1931 95 4,650
HENDERSON CR Illinois Fair 1931 95 1,300
LITTLE CROOKED CREEK Illinois Fair 1931 95 1,550
CEDAR CREEK Illinois Fair 1931 95 4,050
BIG MUDDY RIVER Illinois Fair 1931 95 3,650
POND CREEK Illinois Fair 1931 95 3,650
MILL CREEK Illinois Poor 1932 94 4,450
BR MASTERS CR Illinois Fair 1932 94 650
STREAM Illinois Fair 1932 94 2,150
LITTLE ROCK CREEK Illinois Fair 1932 94 50
GOOSE CREEK Illinois Fair 1932 94 75
LONE TREE CREEK Illinois Fair 1932 94 1,200
HILLSBURY SLOUGH Illinois Fair 1932 94 1,000
STREAM Illinois Poor 1932 94 1,300
E BR EMBARRAS RIVER Illinois Fair 1932 94 425
LAKE DAM Illinois Fair 1932 94 125
RR - CSXT & IHB Illinois Fair 1932 94 9,600
DES PLAINES RIVER Illinois Fair 1932 94 23,500
LITTLE CAL RIV Illinois Poor 1932 94 5,950
M F N BR CHI RIV Illinois Fair 1932 94 7,150
MCDONALD CREEK Illinois Fair 1932 94 9,600
ADDISON CREEK Illinois Fair 1932 94 11,800
BUFFALO CREEK TRIB Illinois Fair 1932 94 16,600
THORN CREEK Illinois Fair 1932 94 15,300
STONY CREEK Illinois Fair 1932 94 14,400
SKOKIE RIVER Illinois Fair 1932 94 13,900
SALT CREEK Illinois Poor 1932 94 17,000
FLAG CREEK Illinois Fair 1932 94 1,200
DEER CR Illinois Poor 1932 94 5,100
UNION DITCH NO 1 Illinois Fair 1932 94 25
DRAINAGE DITCH Illinois Fair 1932 94 2,300
JORDAN SLOUGH Illinois Fair 1932 94 125
STREAM Illinois Good 1932 94 650
SALT CREEK Illinois Fair 1932 94 25,600
STINKING CR LATERAL Illinois Good 1932 94 375
STREAM Illinois Fair 1932 94 4,350
LONE GROVE BRANCH Illinois Fair 1932 94 950
LONE GROVE BRANCH Illinois Fair 1932 94 1,200
LONE GROVE BR Illinois Fair 1932 94 1,200
MAGGOT CREEK Illinois Good 1932 94 100
TRIB HURRICANE CREEK Illinois Fair 1932 94 150
TRIB HURRICANE CREEK Illinois Fair 1932 94 450
TRIB HURRICANE CREEK Illinois Good 1932 94 450
SPOON RIVER Illinois Fair 1932 94 1,400
TRIB TO BEAR CREEK Illinois Fair 1932 94 1,000
HONEY CR Illinois Fair 1932 94 1,350
SMITH CREEK Illinois Fair 1932 94 375
N BRANCH CAMP CREEK Illinois Fair 1932 94 500
CAMP CREEK Illinois Fair 1932 94 500
TR1 B OF TRAIL CR Illinois Good 1932 94 575

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.