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 | 1916 | 110 | 25 |
| MINNEHAHA CREEK | Minnesota | Fair | 1916 | 110 | 8,706 |
| MIDTOWN GREENWAY | Minnesota | Poor | 1916 | 110 | 680 |
| LITTLE IOWA RIVER | Minnesota | Fair | 1916 | 110 | 25 |
| STREAM | Minnesota | Fair | 1916 | 110 | 40 |
| E FK DES MOINES RIVER | Minnesota | Fair | 1916 | 110 | 30 |
| MIDTOWN GREENWAY | Minnesota | Good | 1916 | 110 | 862 |
| MIDTOWN GREENWAY | Minnesota | Good | 1916 | 110 | 970 |
| MIDTOWN GREENWAY | Minnesota | Fair | 1916 | 110 | 1,822 |
| MIDTOWN GREENWAY | Minnesota | Poor | 1916 | 110 | 1,670 |
| MISS RVR; MAIN; W RVR PK | Minnesota | Fair | 1917 | 109 | 14,500 |
| DITCH | Minnesota | Fair | 1917 | 109 | 30 |
| DITCH | Minnesota | Fair | 1917 | 109 | 20 |
| ROBINSON CREEK | Minnesota | Poor | 1917 | 109 | 4 |
| STREAM | Minnesota | Poor | 1917 | 109 | 20 |
| ROSE CREEK | Minnesota | Poor | 1917 | 109 | 8 |
| CO DITCH # 22 | Minnesota | Fair | 1917 | 109 | 420 |
| CO DITCH # 49 | Minnesota | Fair | 1917 | 109 | 45 |
| SWAN RIVER | Minnesota | Poor | 1917 | 109 | 25 |
| CO DITCH # 9 | Minnesota | Fair | 1917 | 109 | 106 |
| LIME CREEK | Minnesota | Fair | 1917 | 109 | 10 |
| DITCH | Minnesota | Fair | 1917 | 109 | 90 |
| SHOTLEY BROOK | Minnesota | Poor | 1917 | 109 | 1 |
| BLACKHOOF CREEK | Minnesota | Poor | 1918 | 108 | 420 |
| COTTONWOOD RIVER | Minnesota | Poor | 1918 | 108 | 70 |
| STREAM | Minnesota | Poor | 1918 | 108 | 70 |
| E BR CHIPPEWA RIVER | Minnesota | Fair | 1918 | 108 | 85 |
| DRY RUN | Minnesota | Fair | 1918 | 108 | 4,250 |
| STREAM | Minnesota | Fair | 1918 | 108 | 645 |
| MID FK ZUMBRO RIVER | Minnesota | Fair | 1918 | 108 | 2,350 |
| MESABI TRAIL | Minnesota | Fair | 1918 | 108 | 8,600 |
| MISSISSIPPI RIVER (DAM) | Minnesota | Fair | 1918 | 108 | 930 |
| SPRING CREEK | Minnesota | Fair | 1918 | 108 | 4,008 |
| S FK WATONWAN RIVER | Minnesota | Fair | 1918 | 108 | 180 |
| STREAM | Minnesota | Poor | 1918 | 108 | 45 |
| TROUT RUN CREEK | Minnesota | Poor | 1918 | 108 | 20 |
| ELM CREEK | Minnesota | Fair | 1918 | 108 | 67 |
| CENTER CREEK | Minnesota | Poor | 1918 | 108 | 58 |
| SOUTH CREEK | Minnesota | Poor | 1918 | 108 | 16 |
| E FK DES MOINES RIVER | Minnesota | Fair | 1918 | 108 | 42 |
| GORMAN CREEK | Minnesota | Good | 1919 | 107 | 33 |
| STREAM | Minnesota | Fair | 1919 | 107 | 1,450 |
| ST LOUIS RIVER | Minnesota | Fair | 1919 | 107 | 1,650 |
| WELCOME CREEK | Minnesota | Poor | 1919 | 107 | 10 |
| STURGEON RIVER | Minnesota | Poor | 1919 | 107 | 5 |
| STEWART CREEK | Minnesota | Fair | 1919 | 107 | 125 |
| CHESTER CREEK | Minnesota | Fair | 1919 | 107 | 6,286 |
| STREAM | Minnesota | Fair | 1920 | 106 | 1,067 |
| E FK LAC QUI PARLE RIVER | Minnesota | Poor | 1920 | 106 | 2 |
| YELLOW MEDICINE RIVER | Minnesota | Poor | 1920 | 106 | 15 |
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.