Bridge conditions in Benson County, North Dakota
40 inventoried bridges · 7 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
Of the 40 Benson County bridges in the federal inventory, 7 carry a poor rating. That 17.5% share is roughly 3x the national average.
- 7 of the 40 bridges in Benson County, North Dakota, are rated in poor condition (17.5%) in the 2025 National Bridge Inventory, as of .
- 20 bridges (50.0%) are rated good and 13 (32.5%) fair.
- The median Benson County bridge was built in 1991.
- The busiest poor-rated bridge is US Highway 281 over Bnrr Sep. (built 1936), carrying about 450 vehicles a day.
Good 50.0% · Fair 32.5% · Poor 17.5% of 40 bridges
Bridges rated poor
Every bridge in the county with a poor rating, busiest first. Poor means a major component is rated 4 or lower on FHWA's 0-9 scale; it is a repair flag, not a closure notice.
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US Highway 281 over Bnrr Sep. | 1936 | 450 | Poor |
| County Hwy over Big Coulee | 1955 | 200 | Poor |
| County Highway over Coulee | 1951 | 75 | Poor |
| Irrft County Hiway over Sheyenne River | 1976 | 35 | Poor |
| County Highway over Sheyenne River | 1912 | 15 | Poor |
| County Highway over Sheyenne River | 1907 | 5 | Poor |
| County Trail over Coulee | 1942 | 1 | Poor |
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Irrft Nd Hiway 57 over Devils Lake Narrows | 1999 | 4,000 | Fair |
| US Highway 2 over Creek | 1984 | 1,900 | Good |
| US Highway 281 over Creek | 2005 | 1,300 | Good |
| US Highway 281 over Creek | 2005 | 1,300 | Good |
| US Highway 281 over Creek | 2006 | 1,300 | Good |
| Nd Highway 19 over Mauvais Coulee | 2001 | 1,260 | Fair |
| N.d.highway 19 over Creek | 2005 | 730 | Fair |
| US Highway over Creek | 2006 | 715 | Good |
| US Highway 281 over Little Coulee | 2006 | 715 | Good |
| US Highway 281 over Round Lake | 2005 | 675 | Good |
Source: FHWA National Bridge Inventory, 2025. Counts cover inventoried highway bridges over 20 feet; ratings are reported by the state DOT.
All of North Dakota: North Dakota bridge conditions by county · every download on the data page.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.