Nd Highway 8 over Cannonball River
GoodHettinger County, North Dakota · South End of Mott · Structure no. 0008045173
- Built
- 1979
- 46 years old
- Condition
- Good
- inspected June 2023
- Type
- Box Beam or Girders - Single or Spread
- Prestressed Concrete Continuous
- Length
- 154 ft
- 3 main spans
- Daily traffic
- 670
- 2019 count
- Owner
- State
- State Highway Agency
About this bridge
Nd Highway 8 over Cannonball River is a prestressed concrete continuous box beam or girders - single or spread carrying Nd Highway 8 over Cannonball River in Hettinger County, North Dakota. It was built in 1979, so it is 46 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 670 vehicles a day, roughly 10% of them trucks, projected to reach 665 by 2039. The structure is 154 ft (46.9 m) long and 43 ft wide. If it were closed, the detour would be 69 mi (111 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 |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Nd Highway 8 over Cannonball River built?
It was built in 1979, making it 46 years old in 2025.
What condition is Nd Highway 8 over Cannonball 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 June 2023.
How much traffic does Nd Highway 8 over Cannonball River carry?
About 670 vehicles per day (2019 count), of which roughly 10% are trucks.
How long is Nd Highway 8 over Cannonball River?
The structure is 154 ft (46.9 m) long with a longest span of 68 ft (20.7 m) and a deck 43 ft wide.
Who owns Nd Highway 8 over Cannonball River?
It is owned by the State Highway Agency.