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 |
|---|---|---|---|---|---|
| MIDDLE BR EMBARASS RIVER | Wisconsin | Poor | 1922 | 104 | 101 |
| ONION RIVER | Wisconsin | Fair | 1922 | 104 | 205 |
| TEN MILE CREEK | Wisconsin | Fair | 1922 | 104 | 172 |
| SEVEN MILE CREEK | Wisconsin | Fair | 1923 | 103 | 795 |
| OTTER CREEK | Wisconsin | Fair | 1923 | 103 | 350 |
| TROUT RUN CREEK | Wisconsin | Poor | 1923 | 103 | 102 |
| BR W FK LITTLE RIB RIVER | Wisconsin | Fair | 1923 | 103 | 2,200 |
| TIGER CREEK | Wisconsin | Fair | 1923 | 103 | 720 |
| S BR EMBARRASS RIVER | Wisconsin | Fair | 1923 | 103 | 490 |
| WALLA WALLA CREEK | Wisconsin | Fair | 1923 | 103 | 21,200 |
| YELLOW RIVER | Wisconsin | Fair | 1923 | 103 | 58 |
| MISSISSIPPI RIVER TRIB | Wisconsin | Fair | 1923 | 103 | 29 |
| BR STORY CREEK | Wisconsin | Poor | 1923 | 103 | 88 |
| LAU CREEK | Wisconsin | Fair | 1923 | 103 | 880 |
| HAY CREEK | Wisconsin | Fair | 1923 | 103 | 96 |
| W BR MILWAUKEE RIVER | Wisconsin | Fair | 1923 | 103 | 180 |
| MCCASLIN BROOK | Wisconsin | Fair | 1923 | 103 | 205 |
| LITTLE RIVER | Wisconsin | Fair | 1923 | 103 | 1,100 |
| BR BLACKHAWK CREEK | Wisconsin | Poor | 1923 | 103 | 165 |
| CHIPPEWA RIVER 10 | Wisconsin | Fair | 1924 | 102 | 16,000 |
| THOMPSON VALLEY CREEK | Wisconsin | Fair | 1924 | 102 | 2,255 |
| BR GRAND RIVER | Wisconsin | Fair | 1924 | 102 | 250 |
| MILWAUKEE RIVER | Wisconsin | Fair | 1924 | 102 | 5,123 |
| WILLOW RIVER | Wisconsin | Fair | 1924 | 102 | 19,790 |
| PENSAUKEE RIVER | Wisconsin | Fair | 1924 | 102 | 410 |
| CRANBERRY RIVER | Wisconsin | Fair | 1924 | 102 | 53 |
| TRADE RIVER | Wisconsin | Fair | 1924 | 102 | 160 |
| KILLSNAKE RIVER | Wisconsin | Fair | 1924 | 102 | 184 |
| KILLSNAKE RIVER | Wisconsin | Poor | 1924 | 102 | 102 |
| CROOKED CREEK | Wisconsin | Poor | 1924 | 102 | 270 |
| SHAW CREEK | Wisconsin | Fair | 1924 | 102 | 58 |
| BEARGRASS CREEK | Wisconsin | Poor | 1924 | 102 | 161 |
| N BR PESHTIGO RIVER | Wisconsin | Poor | 1924 | 102 | 44 |
| LAWERENCE CREEK | Wisconsin | Fair | 1924 | 102 | 40 |
| BR W TWIN RIVER | Wisconsin | Poor | 1924 | 102 | 88 |
| N FK SPIRIT RIVER | Wisconsin | Fair | 1924 | 102 | 13 |
| BR WILLOW RIVER | Wisconsin | Fair | 1924 | 102 | 150 |
| BUTLER DITCH | Wisconsin | Fair | 1924 | 102 | 2,900 |
| POPPLE RIVER | Wisconsin | Fair | 1925 | 101 | 3,100 |
| PRATT CREEK | Wisconsin | Fair | 1925 | 101 | 822 |
| WATERCRESS CREEK | Wisconsin | Poor | 1925 | 101 | 1,308 |
| OAK LEAF BIKE TRAIL (ABA | Wisconsin | Good | 1925 | 101 | 17,300 |
| TIFFANY CREEK | Wisconsin | Fair | 1925 | 101 | 2,200 |
| MARENGO RIVER | Wisconsin | Fair | 1925 | 101 | 49 |
| DUTCHMANS CREEK | Wisconsin | Fair | 1925 | 101 | 94 |
| JOHNS VALLEY CREEK | Wisconsin | Poor | 1925 | 101 | 97 |
| CHASE CREEK | Wisconsin | Fair | 1925 | 101 | 50 |
| WOOD CREEK | Wisconsin | Poor | 1925 | 101 | 60 |
| BR KILLSNAKE RIVER | Wisconsin | Good | 1925 | 101 | 211 |
| KILLSNAKE RIVER | Wisconsin | Poor | 1925 | 101 | 30 |
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.