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 |
|---|---|---|---|---|---|
| LAKE WINNEBAGO TRIB | Wisconsin | Fair | 1925 | 101 | 307 |
| DUNCAN CREEK | Wisconsin | Fair | 1925 | 101 | 135 |
| MCCANN CREEK | Wisconsin | Poor | 1925 | 101 | 75 |
| YAHARA RIVER | Wisconsin | Fair | 1925 | 101 | 24,100 |
| NEBAGAMON CREEK | Wisconsin | Poor | 1925 | 101 | 53 |
| UPPER TAMARACK RIVER | Wisconsin | Fair | 1925 | 101 | 53 |
| BEARGRASS CREEK | Wisconsin | Fair | 1925 | 101 | 265 |
| BEARGRASS CREEK | Wisconsin | Fair | 1925 | 101 | 262 |
| BR EAU CLAIRE RIVER | Wisconsin | Poor | 1925 | 101 | 265 |
| W BR ROCK RIVER | Wisconsin | Fair | 1925 | 101 | 52 |
| KUENSTER CREEK | Wisconsin | Fair | 1925 | 101 | 102 |
| MILL CREEK | Wisconsin | Poor | 1925 | 101 | 35 |
| TRIBUTARY BARABOO RIVER | Wisconsin | Poor | 1925 | 101 | 1,035 |
| BR SHERMAN CREEK | Wisconsin | Fair | 1925 | 101 | 294 |
| BR BONNER BRANCH | Wisconsin | Fair | 1925 | 101 | 540 |
| BR MILL CREEK | Wisconsin | Fair | 1925 | 101 | 94 |
| LEMONWEIR CREEK | Wisconsin | Fair | 1925 | 101 | 47 |
| KICKAPOO RIVER | Wisconsin | Good | 1925 | 101 | 23 |
| FIRST S BR OCONTO RIVER | Wisconsin | Fair | 1925 | 101 | 35 |
| S BR SUAMICO RIVER | Wisconsin | Poor | 1925 | 101 | 1,100 |
| WIND RIVER | Wisconsin | Poor | 1925 | 101 | 87 |
| BEAVER BROOK | Wisconsin | Fair | 1925 | 101 | 86 |
| E BR HONEY CREEK | Wisconsin | Fair | 1925 | 101 | 420 |
| TEAL RIVER | Wisconsin | Fair | 1925 | 101 | 73 |
| PENSAUKEE RIVER | Wisconsin | Poor | 1925 | 101 | 120 |
| MINK CREEK | Wisconsin | Fair | 1925 | 101 | 50 |
| BR BUFFALO RIVER | Wisconsin | Fair | 1925 | 101 | 488 |
| BR N FK BEAVER CREEK | Wisconsin | Fair | 1925 | 101 | 455 |
| BR RUSH CREEK | Wisconsin | Fair | 1925 | 101 | 217 |
| BR W FK KICKAPOO RIVER | Wisconsin | Poor | 1925 | 101 | 205 |
| BR BISHOP BRANCH | Wisconsin | Fair | 1925 | 101 | 205 |
| KOHLSVILLE RIVER | Wisconsin | Fair | 1925 | 101 | 58 |
| BR E BR ROCK RIVER | Wisconsin | Poor | 1925 | 101 | 58 |
| MUSKEGO CANAL | Wisconsin | Fair | 1925 | 101 | 3,100 |
| S BR PIGEON RIVER | Wisconsin | Poor | 1925 | 101 | 220 |
| NEENAH SLOUGH | Wisconsin | Poor | 1925 | 101 | 38 |
| WHITE RIVER | Wisconsin | Fair | 1926 | 100 | 1,600 |
| PINE CREEK | Wisconsin | Fair | 1926 | 100 | 880 |
| DES PLAINES RIVER | Wisconsin | Fair | 1926 | 100 | 4,500 |
| INDIAN CREEK | Wisconsin | Fair | 1926 | 100 | 430 |
| PLOVER RIVER | Wisconsin | Fair | 1926 | 100 | 19,200 |
| SUAMICO RIVER | Wisconsin | Fair | 1926 | 100 | 592 |
| LITTLE WAUMANDEE CREEK | Wisconsin | Poor | 1926 | 100 | 10 |
| MISSISSIPPI RIVER TRIB | Wisconsin | Fair | 1926 | 100 | 700 |
| DE NEVEU CREEK | Wisconsin | Poor | 1926 | 100 | 650 |
| NESHONIC CREEK | Wisconsin | Fair | 1926 | 100 | 94 |
| LRD WATER ST | Wisconsin | Poor | 1926 | 100 | 9,800 |
| COUNCIL CREEK | Wisconsin | Fair | 1926 | 100 | 58 |
| SILVER CREEK | Wisconsin | Fair | 1926 | 100 | 58 |
| BR INDIAN CREEK | Wisconsin | Fair | 1926 | 100 | 430 |
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.