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 |
|---|---|---|---|---|---|
| VAARA CREEK | Minnesota | Fair | 1950 | 76 | 570 |
| JOULA CREEK | Minnesota | Poor | 1950 | 76 | 570 |
| BIG SUCKER RIVER | Minnesota | Fair | 1950 | 76 | 1,350 |
| LE SUEUR RIVER | Minnesota | Poor | 1950 | 76 | 92 |
| SPLIT HAND CREEK | Minnesota | Poor | 1950 | 76 | 40 |
| SPLIT HAND CREEK | Minnesota | Poor | 1950 | 76 | 60 |
| LE SUEUR RIVER | Minnesota | Poor | 1950 | 76 | 60 |
| SISSABAGAMAH CREEK | Minnesota | Fair | 1950 | 76 | 79 |
| BEAVER RIVER | Minnesota | Fair | 1950 | 76 | 5,900 |
| BEAVER RIVER | Minnesota | Fair | 1950 | 76 | 5,900 |
| STREAM | Minnesota | Fair | 1950 | 76 | 1,198 |
| N BR SUNRISE RIVER | Minnesota | Fair | 1950 | 76 | 7,049 |
| GOOSE CREEK | Minnesota | Fair | 1950 | 76 | 2,294 |
| STONY BROOK | Minnesota | Fair | 1950 | 76 | 2,550 |
| STREAM | Minnesota | Poor | 1950 | 76 | 70 |
| JUD DITCH # 12 | Minnesota | Poor | 1950 | 76 | 24 |
| SLEEPY EYE CREEK | Minnesota | Fair | 1950 | 76 | 185 |
| MINNEHAHA CREEK | Minnesota | Poor | 1950 | 76 | 251 |
| DITCH | Minnesota | Poor | 1950 | 76 | 30 |
| STREAM | Minnesota | Fair | 1950 | 76 | 580 |
| STREAM | Minnesota | Poor | 1950 | 76 | 8 |
| PINE ISLAND CREEK | Minnesota | Fair | 1950 | 76 | 20 |
| PINE CREEK | Minnesota | Fair | 1950 | 76 | 260 |
| STREAM | Minnesota | Poor | 1950 | 76 | 330 |
| STREAM | Minnesota | Poor | 1950 | 76 | 36 |
| STREAM | Minnesota | Fair | 1950 | 76 | 130 |
| CHANNEL RUSH LAKE | Minnesota | Fair | 1950 | 76 | 15 |
| COAL MINE CREEK | Minnesota | Fair | 1950 | 76 | 30 |
| JUD DITCH # 12 | Minnesota | Poor | 1950 | 76 | 1 |
| JUD DITCH # 12 | Minnesota | Poor | 1950 | 76 | 6 |
| PALMER CREEK | Minnesota | Fair | 1950 | 76 | 35 |
| BNSF RR | Minnesota | Fair | 1950 | 76 | 129 |
| S BR BUFFALO RIVER | Minnesota | Poor | 1950 | 76 | 21 |
| TISCHERS CREEK | Minnesota | Fair | 1950 | 76 | 526 |
| STREAM | Minnesota | Fair | 1950 | 76 | 5,900 |
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.