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.
| Bridge | State | Condition | Year Built | Age (Years) | ADT |
|---|---|---|---|---|---|
| ANDY CREEK | Illinois | Good | 1938 | 88 | 1,450 |
| SHAW CREEK | Illinois | Fair | 1938 | 88 | 450 |
| COAL CREEK | Illinois | Poor | 1938 | 88 | 50 |
| Trib to Sandy Creek | Illinois | Fair | 1938 | 88 | 1,350 |
| HURRICANE CREEK | Illinois | Fair | 1938 | 88 | 1,350 |
| HURRICANE CREEK | Illinois | Fair | 1938 | 88 | 300 |
| DUGOUT CREEK | Illinois | Fair | 1938 | 88 | 1,000 |
| TURNER CREEK | Illinois | Poor | 1938 | 88 | 4,550 |
| MOSQUITO CREEK | Illinois | Poor | 1938 | 88 | 75 |
| GENESEO CREEK | Illinois | Fair | 1938 | 88 | 550 |
| JEFFERSON CREEK | Illinois | Fair | 1938 | 88 | 425 |
| POSSUM TROT DITCH | Illinois | Poor | 1938 | 88 | 300 |
| OTTER CREEK | Illinois | Good | 1938 | 88 | 950 |
| COON CREEK | Illinois | Fair | 1938 | 88 | 775 |
| DRAINS TO EAGLE LAKE | Illinois | Poor | 1938 | 88 | 775 |
| GRAHAM HOLLOW CREEK | Illinois | Fair | 1938 | 88 | 1,850 |
| KKK RIVER S BR. | Illinois | Fair | 1938 | 88 | 9,750 |
| BAKER CR | Illinois | Fair | 1938 | 88 | 4,250 |
| LEHIGH RUN | Illinois | Fair | 1938 | 88 | 350 |
| LITTLE VERMILION RV | Illinois | Good | 1938 | 88 | 425 |
| PRAIRIE CREEK | Illinois | Fair | 1938 | 88 | 25 |
| CREEK | Illinois | Poor | 1938 | 88 | 50 |
| CREEK | Illinois | Fair | 1938 | 88 | 10 |
| DRAINAGE DITCH | Illinois | Poor | 1938 | 88 | 25 |
| DRAINAGE DITCH | Illinois | Poor | 1938 | 88 | 10 |
| SALT CK TRIB | Illinois | Fair | 1938 | 88 | 50 |
| SALT CK TRIB | Illinois | Fair | 1938 | 88 | 50 |
| SALT CK TRIB | Illinois | Fair | 1938 | 88 | 50 |
| KJRY BNSFRRS | Illinois | Fair | 1938 | 88 | 3,000 |
| FOX RIVER | Illinois | Fair | 1938 | 88 | 10,150 |
| BRANCH MONEY CREEK | Illinois | Poor | 1938 | 88 | 175 |
| EAST FRK OTTER CR | Illinois | Good | 1938 | 88 | 1,850 |
| SILVER CREEK | Illinois | Good | 1938 | 88 | 7,850 |
| WILLS CREEK | Illinois | Good | 1938 | 88 | 175 |
| SANGAMON RIVER | Illinois | Fair | 1938 | 88 | 1,750 |
| SANGAMON R OVERFLOW | Illinois | Poor | 1938 | 88 | 1,750 |
| TAR CREEK | Illinois | Fair | 1938 | 88 | 1,750 |
| W FORK BLUE GRASS CR | Illinois | Fair | 1938 | 88 | 900 |
| BLUE GRASS CREEK | Illinois | Fair | 1938 | 88 | 900 |
| HADLEY CREEK | Illinois | Good | 1938 | 88 | 1,350 |
| KISER CREEK | Illinois | Fair | 1938 | 88 | 775 |
| AMBROSIA CREEK | Illinois | Fair | 1938 | 88 | 1,100 |
| TWO MILE CREEK | Illinois | Good | 1938 | 88 | 1,200 |
| 6 MILE BAY DIVERSION | Illinois | Fair | 1938 | 88 | 725 |
| POST CR CUT-OFF | Illinois | Poor | 1938 | 88 | 650 |
| ROCK RIVER SIDE RD | Illinois | Poor | 1938 | 88 | 11,400 |
| DRAINAGE DITCH | Illinois | Fair | 1938 | 88 | 525 |
| BRANCH OF MISS RIVER | Illinois | Good | 1938 | 88 | 800 |
| TRIB MID FK SALINE R | Illinois | Fair | 1938 | 88 | 1,250 |
| SEXSON BRANCH | Illinois | Fair | 1938 | 88 | 450 |
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.