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 |
|---|---|---|---|---|---|
| MID TAYLOR CREEK BR | Illinois | Fair | 1928 | 98 | 1,000 |
| BEAR CREEK | Illinois | Fair | 1928 | 98 | 2,550 |
| TILTON CREEK | Illinois | Poor | 1928 | 98 | 75 |
| DITCH | Illinois | Poor | 1928 | 98 | 950 |
| BR OF OAT CREEK | Illinois | Poor | 1928 | 98 | 50 |
| PIKE CREEK | Illinois | Poor | 1928 | 98 | 1,700 |
| BR OF SPRING CREEK | Illinois | Fair | 1928 | 98 | 325 |
| BR OF SPRING CREEK | Illinois | Fair | 1928 | 98 | 325 |
| TRIB. TO SPRING CR | Illinois | Poor | 1928 | 98 | 25 |
| FOX RIVER | Illinois | Poor | 1928 | 98 | 4,400 |
| STREAM | Illinois | Poor | 1928 | 98 | 3,650 |
| DODDS CREEK | Illinois | Poor | 1928 | 98 | 3,650 |
| BAUM BRANCH CREEK | Illinois | Fair | 1928 | 98 | 950 |
| COON CREEK | Illinois | Fair | 1928 | 98 | 6,650 |
| LAKE STOREY | Illinois | Fair | 1928 | 98 | 3,250 |
| COURT CREEK | Illinois | Fair | 1928 | 98 | 125 |
| OVER-FLOW LAKE STORY | Illinois | Fair | 1928 | 98 | 375 |
| RAVINE | Illinois | Fair | 1928 | 98 | 900 |
| SMALL RAVINE | Illinois | Good | 1928 | 98 | 175 |
| FOX RIVER | Illinois | Poor | 1928 | 98 | 10,700 |
| L VERMILLION R | Illinois | Fair | 1928 | 98 | 100 |
| MOON CREEK | Illinois | Fair | 1928 | 98 | 50 |
| SALT CREEK | Illinois | Fair | 1928 | 98 | 3,500 |
| Salt Springs | Illinois | Fair | 1928 | 98 | 800 |
| KISHWAUKEE R OVERFLO | Illinois | Fair | 1928 | 98 | 2,250 |
| MACKINAW RIVER | Illinois | Fair | 1928 | 98 | 1,350 |
| MIDDLE FORK SUGAR CK | Illinois | Fair | 1928 | 98 | 475 |
| TRIB TO LONG CREEK | Illinois | Fair | 1928 | 98 | 6,850 |
| LONG CREEK | Illinois | Fair | 1928 | 98 | 4,450 |
| CREEK | Illinois | Fair | 1928 | 98 | 2,700 |
| MOSQUITO CREEK TRIB | Illinois | Fair | 1928 | 98 | 4,500 |
| Indian Creek | Illinois | Fair | 1928 | 98 | 6,000 |
| CAMP CREEK | Illinois | Poor | 1928 | 98 | 1,500 |
| SANDY CREEK | Illinois | Fair | 1928 | 98 | 2,200 |
| COUNTY DITCH | Illinois | Fair | 1928 | 98 | 25 |
| PRAIRIE DU LONG CRK | Illinois | Fair | 1928 | 98 | 4,500 |
| BLACK CREEK | Illinois | Fair | 1928 | 98 | 4,600 |
| KYTE CREEK | Illinois | Fair | 1928 | 98 | 7,550 |
| TRIB OF KICKAPOO CR | Illinois | Fair | 1928 | 98 | 2,550 |
| TRIB OF KICKAPOO CR | Illinois | Fair | 1928 | 98 | 2,550 |
| DRY RUN CREEK | Illinois | Poor | 1928 | 98 | 9,400 |
| ROCK FORK CR | Illinois | Fair | 1928 | 98 | 775 |
| PLUM POINT SLOUGH | Illinois | Poor | 1928 | 98 | 3,100 |
| HILLS BRANCH | Illinois | Fair | 1928 | 98 | 1,450 |
| MARYS RIVER | Illinois | Fair | 1928 | 98 | 5,500 |
| FIRST BLACK CREEK | Illinois | Fair | 1928 | 98 | 4,600 |
| TRIB TO MUD CREEK | Illinois | Fair | 1928 | 98 | 2,050 |
| DRUM HILL BRANCH | Illinois | Fair | 1928 | 98 | 2,200 |
| RECTOR CREEK | Illinois | Good | 1928 | 98 | 2,150 |
| SUGAR CREEK | Illinois | Fair | 1928 | 98 | 16,700 |
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.