Historic Bridges in Minnesota
1,035 bridges built before 1951 in Minnesota still in service today.
Bridges Built Before 1951
The United States has 1,035 bridges in Minnesota 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 |
|---|---|---|---|---|---|
| RCRRA | Minnesota | Fair | 1884 | 142 | 21,524 |
| E CHAN MISSISSIPPI RIVER | Minnesota | Fair | 1887 | 139 | 2,533 |
| MINNEHAHA CREEK | Minnesota | Poor | 1890 | 136 | 4,334 |
| BEAVER CREEK | Minnesota | Poor | 1890 | 136 | 1 |
| BNSF RR | Minnesota | Fair | 1893 | 133 | 1,738 |
| South Fork Zumbro River | Minnesota | Poor | 1895 | 131 | 75 |
| S BR ROOT RIVER | Minnesota | Poor | 1899 | 127 | 170 |
| N FK CROW RIVER | Minnesota | Poor | 1899 | 127 | 24 |
| STREAM | Minnesota | Fair | 1900 | 126 | 6,908 |
| STREAM | Minnesota | Poor | 1900 | 126 | 30 |
| STREAM | Minnesota | Fair | 1900 | 126 | 620 |
| STREAM | Minnesota | Fair | 1900 | 126 | 330 |
| STREAM | Minnesota | Fair | 1900 | 126 | 270 |
| STREAM | Minnesota | Fair | 1900 | 126 | 810 |
| STREAM | Minnesota | Fair | 1900 | 126 | 300 |
| STREAM | Minnesota | Fair | 1900 | 126 | 300 |
| STREAM | Minnesota | Fair | 1900 | 126 | 70 |
| STREAM | Minnesota | Fair | 1900 | 126 | 125 |
| STREAM | Minnesota | Fair | 1900 | 126 | 97 |
| STREAM | Minnesota | Fair | 1900 | 126 | 42 |
| DITCH | Minnesota | Fair | 1900 | 126 | 40 |
| Como-Harriet Streetcar | Minnesota | Fair | 1900 | 126 | 3,550 |
| MINNEHAHA CREEK | Minnesota | Fair | 1902 | 124 | 7,100 |
| MINNEHAHA CREEK | Minnesota | Fair | 1902 | 124 | 3,000 |
| AYD MILL RD; CP RAIL | Minnesota | Fair | 1903 | 123 | 7,900 |
| MINNESOTA RIVER | Minnesota | Poor | 1903 | 123 | 500 |
| RECREATIONAL TRAIL | Minnesota | Fair | 1904 | 122 | 7,778 |
| RICEFORD CREEK | Minnesota | Fair | 1905 | 121 | 4 |
| OKABENA CREEK | Minnesota | Poor | 1905 | 121 | 10 |
| SHIP CANAL | Minnesota | Fair | 1905 | 121 | 6,143 |
| PEDESTRIAN UNDERTAKE | Minnesota | Fair | 1905 | 121 | 10 |
| COMO-HARRIET STREETCAR | Minnesota | Fair | 1905 | 121 | 774 |
| N BR TWO RIVERS | Minnesota | Poor | 1907 | 119 | 12 |
| OTTER TAIL RIVER | Minnesota | Poor | 1908 | 118 | 1,350 |
| MINNEHAHA CREEK | Minnesota | Fair | 1908 | 118 | 200 |
| DITCH | Minnesota | Poor | 1908 | 118 | 33 |
| NOKASIPPI RIVER | Minnesota | Poor | 1908 | 118 | 20 |
| STREAM | Minnesota | Poor | 1908 | 118 | 40 |
| CANNON RIVER | Minnesota | Poor | 1909 | 117 | 1 |
| CANNON RIVER | Minnesota | Fair | 1909 | 117 | 150 |
| ST LOUIS RIVER | Minnesota | Fair | 1910 | 116 | 3,474 |
| CP RAIL | Minnesota | Poor | 1910 | 116 | 30 |
| STREAM | Minnesota | Poor | 1910 | 116 | 25 |
| STREAM | Minnesota | Fair | 1910 | 116 | 400 |
| STREAM | Minnesota | Fair | 1910 | 116 | 86 |
| STREAM | Minnesota | Fair | 1910 | 116 | 297 |
| DUSCHEE CREEK | Minnesota | Poor | 1910 | 116 | 37 |
| STREAM | Minnesota | Fair | 1911 | 115 | 10 |
| CHANNEL; PED PATH | Minnesota | Fair | 1911 | 115 | 33,500 |
| SPRING BROOK | Minnesota | Fair | 1911 | 115 | 56 |
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.