Historic Bridges in Wisconsin
1,333 bridges built before 1951 in Wisconsin still in service today.
Bridges Built Before 1951
The United States has 1,333 bridges in Wisconsin 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 |
|---|---|---|---|---|---|
| CURRAN CREEK | Wisconsin | Fair | 1935 | 91 | 119 |
| BR W FK HALLS CREEK | Wisconsin | Poor | 1935 | 91 | 98 |
| BR BLACK RIVER | Wisconsin | Fair | 1935 | 91 | 35 |
| CURRAN CREEK | Wisconsin | Fair | 1935 | 91 | 20 |
| BR GARVIN CREEK | Wisconsin | Fair | 1935 | 91 | 11 |
| SPRING BROOK | Wisconsin | Poor | 1935 | 91 | 1,699 |
| SKANAWAN CREEK | Wisconsin | Poor | 1935 | 91 | 1 |
| SILVER CREEK | Wisconsin | Fair | 1935 | 91 | 5 |
| JOHNSON CREEK | Wisconsin | Fair | 1935 | 91 | 51 |
| ROOT RIVER | Wisconsin | Fair | 1935 | 91 | 47 |
| MILWAUKEE RIVER | Wisconsin | Fair | 1935 | 91 | 1,400 |
| BR COUNCIL CREEK | Wisconsin | Poor | 1935 | 91 | 94 |
| BR SEYMOUR CREEK | Wisconsin | Fair | 1935 | 91 | 20 |
| BR RUSH RIVER | Wisconsin | Fair | 1935 | 91 | 58 |
| LITTLE ELK RIVER | Wisconsin | Fair | 1935 | 91 | 106 |
| SPRING BROOK | Wisconsin | Fair | 1935 | 91 | 2,500 |
| MID FK MAIN CREEK | Wisconsin | Fair | 1935 | 91 | 86 |
| BR WILLOW RIVER | Wisconsin | Poor | 1935 | 91 | 1,300 |
| WILLOW RIVER OVERFLOW | Wisconsin | Fair | 1935 | 91 | 100 |
| BR ONION RIVER | Wisconsin | Fair | 1935 | 91 | 205 |
| BLACK RIVER | Wisconsin | Fair | 1935 | 91 | 47 |
| ONION RIVER | Wisconsin | Fair | 1935 | 91 | 47 |
| LYGA VALLEY CREEK | Wisconsin | Poor | 1935 | 91 | 18 |
| GREENWOOD VALLEY CREEK | Wisconsin | Fair | 1935 | 91 | 47 |
| TRIB MISSISSIPPI RIVER | Wisconsin | Poor | 1935 | 91 | 58 |
| BR HORNBY HOLLOW CREEK | Wisconsin | Poor | 1935 | 91 | 47 |
| FLAMBEAU LAKE OUTLET | Wisconsin | Fair | 1935 | 91 | 255 |
| HARVEY CREEK | Wisconsin | Fair | 1936 | 90 | 1,700 |
| PANTHER CREEK | Wisconsin | Fair | 1936 | 90 | 58 |
| CAWLEY CREEK | Wisconsin | Fair | 1936 | 90 | 2,600 |
| FOX RIVER | Wisconsin | Fair | 1936 | 90 | 8,000 |
| N BR CRAWFISH RIVER | Wisconsin | Fair | 1936 | 90 | 4,300 |
| HAY RIVER | Wisconsin | Fair | 1936 | 90 | 4,000 |
| W BR ROCK RIVER | Wisconsin | Fair | 1936 | 90 | 15 |
| TAYCHEEDAH CREEK | Wisconsin | Poor | 1936 | 90 | 3,600 |
| MINERAL POINT BRANCH | Wisconsin | Fair | 1936 | 90 | 1,100 |
| WILSON CREEK | Wisconsin | Poor | 1936 | 90 | 640 |
| DOUGLAS CREEK | Wisconsin | Fair | 1936 | 90 | 360 |
| INDIAN CREEK | Wisconsin | Fair | 1936 | 90 | 117 |
| N BR TREMPEALEAU RIVER | Wisconsin | Fair | 1936 | 90 | 530 |
| FOX RIVER | Wisconsin | Fair | 1936 | 90 | 6,800 |
| STEINER BRANCH | Wisconsin | Poor | 1936 | 90 | 505 |
| YELLOWSTONE RIVER | Wisconsin | Poor | 1936 | 90 | 505 |
| TOMAHAWK RIVER | Wisconsin | Fair | 1936 | 90 | 3,100 |
| CEDAR CREEK | Wisconsin | Fair | 1936 | 90 | 3,800 |
| BR MANITOWOC RIVER | Wisconsin | Fair | 1936 | 90 | 2,600 |
| CNW RR | Wisconsin | Fair | 1936 | 90 | 30,186 |
| SILVER CREEK | Wisconsin | Fair | 1936 | 90 | 2,400 |
| BONGERS CREEK | Wisconsin | Fair | 1936 | 90 | 20,705 |
| SHIOC RIVER | Wisconsin | Fair | 1936 | 90 | 350 |
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.