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 |
|---|---|---|---|---|---|
| CHETEK RIVER | Wisconsin | Fair | 1929 | 97 | 1,900 |
| CLAM RIVER | Wisconsin | Poor | 1929 | 97 | 50 |
| CN RR | Wisconsin | Fair | 1929 | 97 | 150 |
| S. FK. POPPLE RIVER | Wisconsin | Fair | 1929 | 97 | 58 |
| BOIS BRULE RIVER | Wisconsin | Poor | 1929 | 97 | 1 |
| TROUT CREEK | Wisconsin | Fair | 1929 | 97 | 25 |
| SCHOOLHOUSE CREEK | Wisconsin | Fair | 1929 | 97 | 793 |
| PUCHYAN RIVER | Wisconsin | Poor | 1929 | 97 | 2,769 |
| PECATONICA RIVER | Wisconsin | Poor | 1929 | 97 | 145 |
| BR GALENA RIVER | Wisconsin | Fair | 1929 | 97 | 94 |
| SHULLSBURG BRANCH | Wisconsin | Poor | 1929 | 97 | 47 |
| TROUT BROOK | Wisconsin | Poor | 1929 | 97 | 88 |
| LITTLE SOMO RIVER | Wisconsin | Fair | 1929 | 97 | 186 |
| BR MANITOWOC RIVER | Wisconsin | Fair | 1929 | 97 | 98 |
| BR LITTLE RIB RIVER | Wisconsin | Fair | 1929 | 97 | 112 |
| BIG SANDY CREEK | Wisconsin | Poor | 1929 | 97 | 23 |
| CARLSON CREEK | Wisconsin | Poor | 1929 | 97 | 90 |
| MILWAUKEE RIVER | Wisconsin | Fair | 1929 | 97 | 5,167 |
| SEYMOUR CREEK | Wisconsin | Fair | 1929 | 97 | 94 |
| BEAVER CREEK | Wisconsin | Fair | 1929 | 97 | 20 |
| CEDAR CREEK | Wisconsin | Fair | 1929 | 97 | 4,400 |
| DOUGLAS CREEK | Wisconsin | Fair | 1929 | 97 | 89 |
| CHERRY VALLEY CREEK | Wisconsin | Poor | 1929 | 97 | 23 |
| GOOSE CREEK | Wisconsin | Fair | 1929 | 97 | 47 |
| MILL CREEK | Wisconsin | Fair | 1929 | 97 | 23 |
| HUTTON CREEK | Wisconsin | Good | 1929 | 97 | 125 |
| DRY RUN CREEK | Wisconsin | Good | 1929 | 97 | 93 |
| CROSSMAN CREEK | Wisconsin | Fair | 1929 | 97 | 136 |
| LAKE REDSTONE TRIBUTARY | Wisconsin | Poor | 1929 | 97 | 19 |
| LITTLE BEAR CREEK | Wisconsin | Fair | 1929 | 97 | 60 |
| BR PLUM CREEK | Wisconsin | Poor | 1929 | 97 | 15 |
| GENESEE CREEK | Wisconsin | Fair | 1929 | 97 | 99 |
| ASHIPPUN RIVER | Wisconsin | Poor | 1929 | 97 | 98 |
| E BR YELLOW RIVER | Wisconsin | Fair | 1929 | 97 | 1,300 |
| STURGEON BAY | Wisconsin | Good | 1930 | 96 | 8,300 |
| STURGEON BAY | Wisconsin | Fair | 1930 | 96 | 8,300 |
| STURGEON BAY | Wisconsin | Fair | 1930 | 96 | 5,400 |
| STURGEON BAY | Wisconsin | Fair | 1930 | 96 | 8,300 |
| SEVEN MILE CREEK | Wisconsin | Fair | 1930 | 96 | 510 |
| BR OF WISCONSIN RIVER | Wisconsin | Fair | 1930 | 96 | 102 |
| TRIB. TO MORREY CREEK | Wisconsin | Fair | 1930 | 96 | 320 |
| DODGE BRANCH | Wisconsin | Fair | 1930 | 96 | 790 |
| WILSON CREEK | Wisconsin | Fair | 1930 | 96 | 290 |
| MUD CREEK | Wisconsin | Fair | 1930 | 96 | 10,100 |
| ARKANSAW CREEK | Wisconsin | Poor | 1930 | 96 | 193 |
| DENT CREEK | Wisconsin | Fair | 1930 | 96 | 530 |
| MILL CREEK | Wisconsin | Fair | 1930 | 96 | 650 |
| BR FOX RIVER | Wisconsin | Fair | 1930 | 96 | 32,200 |
| BEAVER CREEK | Wisconsin | Fair | 1930 | 96 | 100 |
| QUADERERS CREEK | Wisconsin | Fair | 1930 | 96 | 2,700 |
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.