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 |
|---|---|---|---|---|---|
| FLAT BRANCH | Illinois | Fair | 1937 | 89 | 375 |
| YELLOW CREEK | Illinois | Fair | 1937 | 89 | 1,650 |
| CRANE CREEK BRANCH | Illinois | Fair | 1937 | 89 | 1,600 |
| BRANCH PECATONICA R | Illinois | Fair | 1937 | 89 | 375 |
| W FORK SUGAR CREEK | Illinois | Poor | 1937 | 89 | 300 |
| LAKE GLENDALE SPILLWAY | Illinois | Fair | 1937 | 89 | 125 |
| CREEK | Illinois | Fair | 1937 | 89 | 325 |
| SWANK CREEK | Illinois | Fair | 1937 | 89 | 850 |
| BR GRAND POINT CREEK | Illinois | Fair | 1937 | 89 | 350 |
| STREAM | Illinois | Fair | 1937 | 89 | 250 |
| DRAINAGE DITCH | Illinois | Good | 1937 | 89 | 125 |
| DRAINAGE DITCH | Illinois | Good | 1937 | 89 | 125 |
| TRIB. HICKORY CR | Illinois | Fair | 1937 | 89 | 10,800 |
| FORKED CREEK TRIB | Illinois | Fair | 1937 | 89 | 225 |
| BIG MUDDY RIVER | Illinois | Fair | 1937 | 89 | 5,550 |
| SUGAR CREEK | Illinois | Fair | 1937 | 89 | 450 |
| BR OF CANAL CREEK | Illinois | Fair | 1937 | 89 | 150 |
| KENT CREEK | Illinois | Poor | 1937 | 89 | 950 |
| PARTRIDGE CR | Illinois | Fair | 1937 | 89 | 50 |
| HENDERSON RIVER | Illinois | Poor | 1937 | 89 | 100 |
| PETTIBONE CREEK | Illinois | Fair | 1938 | 88 | 210 |
| CRAB ORCHARD LAKE | Illinois | Fair | 1938 | 88 | 150 |
| LICK CREEK | Illinois | Fair | 1938 | 88 | 150 |
| MCCRANEY CREEK | Illinois | Fair | 1938 | 88 | 250 |
| SHOAL CREEK | Illinois | Good | 1938 | 88 | 500 |
| STREAM | Illinois | Fair | 1938 | 88 | 500 |
| SUTTON CREEK | Illinois | Fair | 1938 | 88 | 500 |
| SUTTON CREEK | Illinois | Fair | 1938 | 88 | 500 |
| TRIB TO SUGAR CREEK | Illinois | Fair | 1938 | 88 | 5,200 |
| LITTLE WABASH RIVER | Illinois | Fair | 1938 | 88 | 1,400 |
| CAL SAG CHANNEL | Illinois | Poor | 1938 | 88 | 32,900 |
| RR - WI CENTRAL LTD | Illinois | Fair | 1938 | 88 | 21,900 |
| RR - IHB & GARDNER | Illinois | Fair | 1938 | 88 | 24,000 |
| MC DONALD CREEK | Illinois | Fair | 1938 | 88 | 4,950 |
| S BR CHICAGO RIVER | Illinois | Fair | 1938 | 88 | 23,200 |
| CALUMET RIVER | Illinois | Poor | 1938 | 88 | 14,500 |
| METRA ELECTRIC RR | Illinois | Fair | 1938 | 88 | 9,300 |
| NORFOLK SOUTHERN RR | Illinois | Poor | 1938 | 88 | 19,800 |
| SHARED USE PATH | Illinois | Fair | 1938 | 88 | 21,500 |
| CREEK | Illinois | Good | 1938 | 88 | 125 |
| PR SO BR KISHWAUKEE | Illinois | Fair | 1938 | 88 | 575 |
| ROCK CREEK | Illinois | Fair | 1938 | 88 | 325 |
| STREAM | Illinois | Fair | 1938 | 88 | 175 |
| STREAM | Illinois | Fair | 1938 | 88 | 550 |
| SNAKE CREEK | Illinois | Fair | 1938 | 88 | 25 |
| INDIAN CREEK | Illinois | Fair | 1938 | 88 | 350 |
| FULFER CREEK | Illinois | Good | 1938 | 88 | 1,350 |
| BIG CREEK | Illinois | Fair | 1938 | 88 | 2,700 |
| NW BR FULFER CREEK | Illinois | Fair | 1938 | 88 | 1,350 |
| M FORK BIG MUDDY R | Illinois | Fair | 1938 | 88 | 5,500 |
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.