Nd Highway 8 over Little Knife River
GoodMountrail County, North Dakota · 1 South of Stanley · Structure no. 0008155110
- Built
- 1985
- 40 years old, rebuilt 2011
- Condition
- Good
- inspected September 2023
- Type
- Culvert
- Concrete
- Length
- 21 ft
- 2 main spans
- Daily traffic
- 2,110
- 2018 count
- Owner
- State
- State Highway Agency
About this bridge
Nd Highway 8 over Little Knife River is a concrete culvert carrying Nd Highway 8 over Little Knife River in Mountrail County, North Dakota. It was built in 1985 and reconstructed in 2011, so it is 40 years old, younger than the North Dakota average of 48.2 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 2,110 vehicles a day, roughly 30% of them trucks, projected to reach 3,145 by 2038. The structure is 21 ft (6.4 m) long. If it were closed, the detour would be 123.7 mi (199 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Channel and channel protection | 7 Good | Some minor problems. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Nd Highway 8 over Little Knife River built?
It was built in 1985, making it 40 years old in 2025. It was reconstructed in 2011.
What condition is Nd Highway 8 over Little Knife River in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2023.
How much traffic does Nd Highway 8 over Little Knife River carry?
About 2,110 vehicles per day (2018 count), of which roughly 30% are trucks.
How long is Nd Highway 8 over Little Knife River?
The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m).
Who owns Nd Highway 8 over Little Knife River?
It is owned by the State Highway Agency.