Historic Bridges in North Dakota
685 bridges built before 1951 in North Dakota still in service today.
Bridges Built Before 1951
The United States has 685 bridges in North Dakota 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 |
|---|---|---|---|---|---|
| WILD RICE RIVER | North Dakota | Poor | 1949 | 77 | 5 |
| GREEN RIVER | North Dakota | Fair | 1949 | 77 | 750 |
| CREEK | North Dakota | Fair | 1949 | 77 | 5 |
| CREEK | North Dakota | Good | 1949 | 77 | 455 |
| CREEK | North Dakota | Good | 1949 | 77 | 250 |
| CREEK | North Dakota | Good | 1949 | 77 | 1,000 |
| CREEK | North Dakota | Fair | 1949 | 77 | 1,430 |
| CREEK | North Dakota | Fair | 1949 | 77 | 8,690 |
| ONE MILE CREEK | North Dakota | Poor | 1950 | 76 | 401 |
| STONE CREEK | North Dakota | Poor | 1950 | 76 | 10 |
| CREEK BED | North Dakota | Poor | 1950 | 76 | 10 |
| CREEK | North Dakota | Poor | 1950 | 76 | 20 |
| LONG LAKE CREEK | North Dakota | Fair | 1950 | 76 | 60 |
| MAPLE RIVER | North Dakota | Poor | 1950 | 76 | 20 |
| MAPLE RIVER | North Dakota | Fair | 1950 | 76 | 20 |
| BRANCH OF ELM RIVER | North Dakota | Fair | 1950 | 76 | 20 |
| CREEK | North Dakota | Fair | 1950 | 76 | 20 |
| CYPRESS CREEK | North Dakota | Poor | 1950 | 76 | 2 |
| CREEK | North Dakota | Poor | 1950 | 76 | 10 |
| SPRING CREEK | North Dakota | Fair | 1950 | 76 | 50 |
| CREEK | North Dakota | Fair | 1950 | 76 | 10 |
| CREEK | North Dakota | Fair | 1950 | 76 | 24 |
| COULEE | North Dakota | Fair | 1950 | 76 | 75 |
| SO BRANCH FOREST RIVER | North Dakota | Poor | 1950 | 76 | 40 |
| COULEE | North Dakota | Fair | 1950 | 76 | 210 |
| CREEK | North Dakota | Fair | 1950 | 76 | 25 |
| COULEE | North Dakota | Fair | 1950 | 76 | 305 |
| CREEK | North Dakota | Poor | 1950 | 76 | 20 |
| COULEE | North Dakota | Fair | 1950 | 76 | 180 |
| TURTLE RIVER | North Dakota | Fair | 1950 | 76 | 215 |
| MORIAS RIVER | North Dakota | Fair | 1950 | 76 | 30 |
| COLE CREEK | North Dakota | Poor | 1950 | 76 | 180 |
| SOUTH MARAIS RIVER | North Dakota | Fair | 1950 | 76 | 24 |
| COLE CREEK | North Dakota | Fair | 1950 | 76 | 70 |
| COLE CREEK | North Dakota | Fair | 1950 | 76 | 65 |
| CREEK | North Dakota | Fair | 1950 | 76 | 5 |
| HAY SLOUGH CREEK | North Dakota | Fair | 1950 | 76 | 20 |
| COTTONWOOD CREEK | North Dakota | Poor | 1950 | 76 | 2 |
| JAMES RIVER | North Dakota | Poor | 1950 | 76 | 140 |
| COTTONWOOD CREEK | North Dakota | Fair | 1950 | 76 | 10 |
| COTTONWOOD CREEK | North Dakota | Fair | 1950 | 76 | 10 |
| SPRING CREEK | North Dakota | Fair | 1950 | 76 | 25 |
| CREEK | North Dakota | Fair | 1950 | 76 | 35 |
| PAINTED WOODS CREEK | North Dakota | Good | 1950 | 76 | 25 |
| SPRING CREEK | North Dakota | Fair | 1950 | 76 | 10 |
| Big Muddy Creek | North Dakota | Fair | 1950 | 76 | 470 |
| BIG MUDDY CREEK | North Dakota | Fair | 1950 | 76 | 470 |
| DRAINAGE AREA | North Dakota | Fair | 1950 | 76 | 10 |
| CREEK | North Dakota | Fair | 1950 | 76 | 15 |
| WILLOW CREEK | North Dakota | Poor | 1950 | 76 | 240 |
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.