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 |
|---|---|---|---|---|---|
| TURTLE CREEK | Wisconsin | Poor | 1887 | 139 | 474 |
| BR MCCARTNEY BRANCH | Wisconsin | Poor | 1890 | 136 | 240 |
| S BR LITTLE WOLF RIVER | Wisconsin | Good | 1890 | 136 | 597 |
| S BR LITTLE WOLF RIVER | Wisconsin | Poor | 1890 | 136 | 56 |
| W FK KICKAPOO RIVER | Wisconsin | Fair | 1891 | 135 | 205 |
| MILWAUKEE RIVER | Wisconsin | Poor | 1891 | 135 | — |
| BLACK OTTER CREEK | Wisconsin | Fair | 1892 | 134 | 5,151 |
| SEELEY CREEK | Wisconsin | Fair | 1894 | 132 | 27 |
| DRAINAGE RAVINE | Wisconsin | Fair | 1896 | 130 | 58 |
| YAHARA RIVER | Wisconsin | Fair | 1897 | 129 | 450 |
| PINE CREEK | Wisconsin | Fair | 1898 | 128 | 31 |
| SUSSEX CREEK | Wisconsin | Fair | 1900 | 126 | 1,600 |
| BRANCH RIVER | Wisconsin | Poor | 1900 | 126 | 840 |
| PINE CREEK | Wisconsin | Fair | 1900 | 126 | 640 |
| UNION PACIFIC RR | Wisconsin | Poor | 1900 | 126 | 79 |
| CROOKED CREEK | Wisconsin | Poor | 1900 | 126 | 102 |
| CN RR | Wisconsin | Poor | 1900 | 126 | 52 |
| BR MORRIS CREEK | Wisconsin | Fair | 1900 | 126 | 23 |
| S BR LITTLE WOLF RIVER | Wisconsin | Good | 1900 | 126 | 421 |
| FOX RIVER | Wisconsin | Fair | 1901 | 125 | 590 |
| BR BADGER MILL CREEK | Wisconsin | Fair | 1901 | 125 | 10 |
| OAK LEAF BIKE TRAIL | Wisconsin | Fair | 1903 | 123 | 9,800 |
| PRAIRIE RIVER | Wisconsin | Fair | 1904 | 122 | 7,300 |
| ROCKY RUN | Wisconsin | Fair | 1904 | 122 | 62 |
| YAHARA RIVER | Wisconsin | Fair | 1905 | 121 | 16,800 |
| E BR BIG SANDY CREEK | Wisconsin | Fair | 1907 | 119 | 24 |
| BR APPLE CREEK | Wisconsin | Poor | 1907 | 119 | 94 |
| HATTON CREEK | Wisconsin | Good | 1907 | 119 | 51 |
| JACK CREEK | Wisconsin | Good | 1908 | 118 | 92 |
| BRANCH RIVER | Wisconsin | Poor | 1909 | 117 | 94 |
| MAPLE CREEK | Wisconsin | Fair | 1909 | 117 | 47 |
| ST LOUIS RIVER | Wisconsin | Fair | 1910 | 116 | 2,205 |
| UNION PACIFIC RR | Wisconsin | Poor | 1910 | 116 | 197 |
| OTTER CREEK | Wisconsin | Fair | 1910 | 116 | 47 |
| ROGERS BRANCH | Wisconsin | Poor | 1910 | 116 | 50 |
| BR DOUGHERTY CREEK | Wisconsin | Fair | 1910 | 116 | 105 |
| BR TOWN CREEK | Wisconsin | Fair | 1910 | 116 | 20 |
| MUD CREEK | Wisconsin | Fair | 1910 | 116 | 35 |
| BR DUCK CREEK | Wisconsin | Fair | 1910 | 116 | 1,100 |
| DUCK CREEK | Wisconsin | Poor | 1910 | 116 | 47 |
| M BR EMBARRASS RIVER | Wisconsin | Fair | 1910 | 116 | 120 |
| S BR EMBARRASS RIVER | Wisconsin | Poor | 1910 | 116 | 50 |
| RAILS TO TRAILS TRAIL | Wisconsin | Poor | 1910 | 116 | 47 |
| OCONOMOWOC RIVER | Wisconsin | Fair | 1910 | 116 | 4,664 |
| BR CRANBERRY CREEK | Wisconsin | Fair | 1910 | 116 | 25 |
| APPLE CREEK | Wisconsin | Poor | 1911 | 115 | 625 |
| W BR FOND DU LAC RIVER | Wisconsin | Poor | 1912 | 114 | 360 |
| W BR MONTREAL RIVER | Wisconsin | Fair | 1912 | 114 | 157 |
| POTATO CREEK | Wisconsin | Poor | 1912 | 114 | 54 |
| WOLF RIVER | Wisconsin | Poor | 1913 | 113 | 1,215 |
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.