Bridge conditions in Hettinger County, North Dakota
64 inventoried bridges · 9 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
Of the 64 Hettinger County bridges in the federal inventory, 9 carry a poor rating. That 14.1% share is roughly 2x the national average.
- 9 of the 64 bridges in Hettinger County, North Dakota, are rated in poor condition (14.1%) in the 2025 National Bridge Inventory, as of .
- 21 bridges (32.8%) are rated good and 34 (53.1%) fair.
- The median Hettinger County bridge was built in 1960.
- The busiest poor-rated bridge is Main St over Cannonball River (built 1912), carrying about 50 vehicles a day.
Good 32.8% · Fair 53.1% · Poor 14.1% of 64 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 |
|---|---|---|---|
| Main St over Cannonball River | 1912 | 50 | Poor |
| County Road over Cannonball River | 1944 | 26 | Poor |
| 95th Avenue SW over Creek | 1960 | 20 | Poor |
| 93RD Ave SW over Creek | 1948 | 20 | Poor |
| 107TH Ave SW over Thirty Mile Creek | 1940 | 15 | Poor |
| 94th Avenue SW over Thirty Mile Creek | 1941 | 15 | Poor |
| 116th Ave SW over Chanta Peta Creek | 1915 | 10 | Poor |
| 101st Ave SW over Spring Creek | 1936 | 10 | Poor |
| 83rd St SW over Creek | 1942 | 10 | Poor |
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Nd Highway 22 over Creek | 1960 | 1,100 | Fair |
| Nd Highway 22 over Cannonball River | 1960 | 830 | Fair |
| W 1st St over N Fork Cannonball River | 1982 | 700 | Fair |
| Nd Highway 8 over Cannonball River | 1979 | 670 | Good |
| Nd Highway 22 over Chanta Peta Creek | 1985 | 600 | Fair |
| 12th St over Creek | 1958 | 550 | Fair |
| Nd Highway 21 over Branch Cannonball River | 1951 | 510 | Fair |
| Nd Highway 8 over Thirty Mile Creek | 1962 | 450 | Fair |
| Nd Highway 21 over Indian Creek | 1959 | 450 | Fair |
| Nd Highway 8 over East Chilton Creek | 1991 | 420 | 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.