Bridge conditions in LaMoure County, North Dakota
60 inventoried bridges · 7 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
Of the 60 LaMoure County bridges in the federal inventory, 7 carry a poor rating. That 11.7% share is roughly 2x the national average.
- 7 of the 60 bridges in LaMoure County, North Dakota, are rated in poor condition (11.7%) in the 2025 National Bridge Inventory, as of .
- 29 bridges (48.3%) are rated good and 24 (40.0%) fair.
- The median LaMoure County bridge was built in 1978.
- The busiest poor-rated bridge is Nd Highway 46 over James River (built 1964), carrying about 310 vehicles a day.
Good 48.3% · Fair 40.0% · Poor 11.7% of 60 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 46 over James River | 1964 | 310 | Poor |
| County Highway over James River | 1950 | 140 | Poor |
| County Road over James River | 1910 | 50 | Poor |
| County Road over Maple River | 1935 | 24 | Poor |
| County Highway over James River | 1908 | 18 | Poor |
| County Road over Maple Creek | 1920 | 10 | Poor |
| County Road over Cottonwood Creek | 1950 | 2 | Poor |
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US Highway 281 over Bonehill Creek | 1990 | 16,250 | Fair |
| Nd Highway 13 over Maple Creek | 2004 | 1,725 | Good |
| US Highway 281 over Maple Creek | 2006 | 1,625 | Good |
| US Highway 281 over Cottonwood Creek | 2006 | 1,625 | Good |
| US Highway 281 over Cottonwood Creek | 2006 | 1,625 | Good |
| Nd Highway 13 over James River | 1950 | 1,350 | Fair |
| US Highway 281 over Maple River | 1941 | 970 | Good |
| Nd Highway 13 over Creek | 1931 | 900 | Good |
| Nd Highway 27 over Bear Creek | 2002 | 500 | Good |
| Nd Highway 46 over James River | 1964 | 310 | Poor |
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.