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 |
|---|---|---|---|---|---|
| STINKING CREEK | Illinois | Poor | 1909 | 117 | 25 |
| VILLAGE CREEK | Illinois | Fair | 1909 | 117 | 50 |
| STREAM | Illinois | Fair | 1909 | 117 | 2,650 |
| SECOND CREEK | Illinois | Fair | 1909 | 117 | 300 |
| LITTLE MOCCASIN CK | Illinois | Fair | 1909 | 117 | 125 |
| DRAINAGE DITCH | Illinois | Poor | 1909 | 117 | 25 |
| WOLF CREEK | Illinois | Fair | 1909 | 117 | 75 |
| WOLF CREEK | Illinois | Poor | 1909 | 117 | 50 |
| SECOND CREEK | Illinois | Fair | 1909 | 117 | 25 |
| BROCKETT CREEK | Illinois | Fair | 1909 | 117 | 100 |
| MORRIS CREEK | Illinois | Poor | 1909 | 117 | 100 |
| SALT CREEK | Illinois | Fair | 1909 | 117 | 250 |
| CREEK | Illinois | Poor | 1909 | 117 | 35 |
| SECOND CREEK | Illinois | Poor | 1909 | 117 | 50 |
| DIETERICH CREEK | Illinois | Fair | 1909 | 117 | 50 |
| SECOND CREEK | Illinois | Fair | 1909 | 117 | 50 |
| DIETRICH CREEK | Illinois | Fair | 1909 | 117 | 75 |
| BISHOP CREEK | Illinois | Fair | 1909 | 117 | 150 |
| FULFER CREEK | Illinois | Fair | 1909 | 117 | 100 |
| BRUSH CREEK | Illinois | Fair | 1909 | 117 | 250 |
| LITTLE BISHOP CREEK | Illinois | Fair | 1909 | 117 | 100 |
| RAMSEY CREEK | Illinois | Fair | 1909 | 117 | 35 |
| LITTLE SALT CREEK | Illinois | Poor | 1909 | 117 | 50 |
| LITTLE MUDDY CREEK | Illinois | Good | 1909 | 117 | 35 |
| DIETERICH CREEK | Illinois | Poor | 1909 | 117 | 100 |
| LITTLE SALT CREEK | Illinois | Fair | 1909 | 117 | 25 |
| LITTLE MOCCASIN CK | Illinois | Fair | 1909 | 117 | 50 |
| STREAM | Illinois | Fair | 1909 | 117 | 3,950 |
| LICK CREEK | Illinois | Fair | 1909 | 117 | 75 |
| PLUM CREEK | Illinois | Fair | 1909 | 117 | 75 |
| CREEK | Illinois | Fair | 1909 | 117 | 50 |
| CREEK | Illinois | Fair | 1909 | 117 | 275 |
| PENN CENTRAL RR | Illinois | Fair | 1909 | 117 | 2,000 |
| CONSOLIDATED RR | Illinois | Fair | 1909 | 117 | 575 |
| STREAM | Illinois | Good | 1909 | 117 | 100 |
| CONTRARY CREEK | Illinois | Poor | 1909 | 117 | 75 |
| TRIB BIG CREEK | Illinois | Poor | 1909 | 117 | 75 |
| TRIB OF BRONSON CR | Illinois | Poor | 1909 | 117 | 25 |
| CROOKED CREEK | Illinois | Poor | 1909 | 117 | 50 |
| BIG MUDDY CREEK | Illinois | Fair | 1909 | 117 | 125 |
| ISLAND CREEK | Illinois | Fair | 1909 | 117 | 50 |
| CROOKED CREEK | Illinois | Fair | 1909 | 117 | 25 |
| LAWS CREEK | Illinois | Fair | 1909 | 117 | 100 |
| WOLF CREEK | Illinois | Poor | 1909 | 117 | 25 |
| CREEK | Illinois | Poor | 1909 | 117 | 50 |
| RICHLAND CREEK | Illinois | Fair | 1909 | 117 | 50 |
| LAWS CREEK | Illinois | Fair | 1909 | 117 | 200 |
| FOX RIVER | Illinois | Poor | 1909 | 117 | 75 |
| SAMS BRANCH | Illinois | Poor | 1909 | 117 | 25 |
| FR EAST CROOKED CK | Illinois | Fair | 1909 | 117 | 50 |
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.