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 |
|---|---|---|---|---|---|
| STREAM | Minnesota | Fair | 1929 | 97 | 2,175 |
| STREAM | Minnesota | Fair | 1929 | 97 | 3,350 |
| STREAM | Minnesota | Fair | 1929 | 97 | 475 |
| BUTTERFIELD CREEK | Minnesota | Fair | 1929 | 97 | 35 |
| SILVER CREEK | Minnesota | Fair | 1930 | 96 | 1,350 |
| CENTER CREEK | Minnesota | Poor | 1930 | 96 | 1,089 |
| WEST TWO RIVERS | Minnesota | Fair | 1930 | 96 | 15 |
| STREAM | Minnesota | Poor | 1930 | 96 | 294 |
| GENTILLY RIVER | Minnesota | Fair | 1930 | 96 | 3,073 |
| SPRING CREEK | Minnesota | Fair | 1930 | 96 | 1,400 |
| BOIS DE SIOUX RIVER | Minnesota | Fair | 1930 | 96 | 9,650 |
| STREAM | Minnesota | Fair | 1930 | 96 | 1,893 |
| Cannon River | Minnesota | Fair | 1930 | 96 | 5,113 |
| STREAM | Minnesota | Fair | 1930 | 96 | 4,187 |
| S FK GRINDSTONE RIVER | Minnesota | Fair | 1930 | 96 | 23 |
| LITTLE ROCK RIVER | Minnesota | Good | 1930 | 96 | 295 |
| MISSISSIPPI RIVER | Minnesota | Fair | 1930 | 96 | 3,104 |
| LIME CREEK | Minnesota | Fair | 1930 | 96 | 175 |
| JUD DITCH # 1 | Minnesota | Fair | 1930 | 96 | 20 |
| S FK WHITEWATER RIVER | Minnesota | Fair | 1930 | 96 | 3,607 |
| S FK WHITEWATER RIVER | Minnesota | Fair | 1930 | 96 | 3,607 |
| STREAM | Minnesota | Fair | 1930 | 96 | 255 |
| STREAM | Minnesota | Fair | 1930 | 96 | 480 |
| STREAM | Minnesota | Fair | 1930 | 96 | 1,500 |
| STREAM | Minnesota | Fair | 1930 | 96 | 1,500 |
| S FK WHITEWATER RIVER | Minnesota | Fair | 1930 | 96 | 3,607 |
| STREAM | Minnesota | Fair | 1930 | 96 | 3,607 |
| S FK WHITEWATER RIVER | Minnesota | Fair | 1930 | 96 | 3,607 |
| S FK WHITEWATER RIVER | Minnesota | Fair | 1930 | 96 | 3,607 |
| S FK WHITEWATER RIVER | Minnesota | Fair | 1930 | 96 | 3,607 |
| STREAM | Minnesota | Fair | 1930 | 96 | 1 |
| STREAM | Minnesota | Fair | 1930 | 96 | 4,193 |
| STREAM | Minnesota | Fair | 1930 | 96 | 4,193 |
| STREAM | Minnesota | Fair | 1930 | 96 | 4,193 |
| BREWERY CREEK | Minnesota | Fair | 1930 | 96 | 4,187 |
| BERGMAN BROOK | Minnesota | Fair | 1930 | 96 | 1,655 |
| STREAM | Minnesota | Fair | 1930 | 96 | 455 |
| BNSF RR; BASSETT CREEK | Minnesota | Good | 1930 | 96 | 1,603 |
| AYD MILL RD; CP RAIL | Minnesota | Fair | 1930 | 96 | 11,103 |
| SANDY RIVER | Minnesota | Fair | 1930 | 96 | 2,575 |
| DITCH | Minnesota | Fair | 1930 | 96 | 3,900 |
| STRAIGHT RIVER | Minnesota | Fair | 1930 | 96 | 4,567 |
| E SWAN RIVER | Minnesota | Poor | 1930 | 96 | 20 |
| STREAM | Minnesota | Poor | 1930 | 96 | 255 |
| DUTCH CHARLEY CREEK | Minnesota | Good | 1930 | 96 | 933 |
| DUTCH CHARLEY CREEK | Minnesota | Fair | 1930 | 96 | 410 |
| ST JAMES CREEK | Minnesota | Fair | 1930 | 96 | 45 |
| FLOODWY TO SPRING BR CRK | Minnesota | Fair | 1930 | 96 | 45 |
| Robert Street (952A) | Minnesota | Fair | 1930 | 96 | 5,900 |
| STREAM | Minnesota | Fair | 1930 | 96 | 4,120 |
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.