Bridge conditions in Nelson County, North Dakota
23 inventoried bridges · 4 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
Nelson County has 4 bridges rated poor out of 23 inventoried, a 17.4% share that puts it well above the national rate of about 7%.
- 4 of the 23 bridges in Nelson County, North Dakota, are rated in poor condition (17.4%) in the 2025 National Bridge Inventory, as of .
- 7 bridges (30.4%) are rated good and 12 (52.2%) fair.
- The median Nelson County bridge was built in 1980.
- The busiest poor-rated bridge is Nd Highway 1 over Sheyenne River (built 1964), carrying about 300 vehicles a day.
Good 30.4% · Fair 52.2% · Poor 17.4% of 23 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 |
|---|---|---|---|
| Nd Highway 1 over Sheyenne River | 1964 | 300 | Poor |
| County Highway over Sheyenne River | 1920 | 20 | Poor |
| County Highway over Sheyenne River | 1904 | 5 | Poor |
| County Highway over Sheyenne River | 1910 | 5 | Poor |
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US Highway 2 over Bnrr Sep over | 2023 | 1,685 | Good |
| US Highway 2 over Bnrr Sep over | 1983 | 1,455 | Fair |
| Nd Highway 15 over Creek | 1931 | 510 | Fair |
| Nd Highway 1 over Sheyenne River | 1964 | 300 | Poor |
| County Highway over Forest River | 1978 | 166 | Fair |
| County Highway over Sheyenne River | 1975 | 150 | Fair |
| County Highway over Sheyenne River | 1975 | 130 | Fair |
| County Highway over Creek | 1995 | 80 | Good |
| County Highway over Sheyenne River | 2020 | 80 | Good |
| County Highway over Jerusalem Coulee | 2001 | 50 | 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.