IRR BIA RTE 6 over Cannonball River
GoodSioux County, North Dakota · 1404KM West of CR 6 · Structure no. 00000000000A135
- Built
- 1999
- 26 years old
- Condition
- Good
- inspected May 2023
- Type
- Box Beam or Girders - Single or Spread
- Prestressed Concrete
- Length
- 300 ft
- 3 main spans
- Daily traffic
- 197
- 2023 count
- Owner
- Federal
- Bureau of Indian Affairs
About this bridge
IRR BIA RTE 6 over Cannonball River is a prestressed concrete box beam or girders - single or spread carrying IRR BIA RTE 6 over Cannonball River in Sioux County, North Dakota. It was built in 1999, so it is 26 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 197 vehicles a day, roughly 17% of them trucks, projected to reach 317 by 2043. The structure is 300 ft (91.4 m) long and 33 ft wide. If it were closed, the detour would be 55.9 mi (90 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 | 8 Very Good | No problems noted. |
| 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 IRR BIA RTE 6 over Cannonball River built?
It was built in 1999, making it 26 years old in 2025.
What condition is IRR BIA RTE 6 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 May 2023.
How much traffic does IRR BIA RTE 6 over Cannonball River carry?
About 197 vehicles per day (2023 count), of which roughly 17% are trucks.
How long is IRR BIA RTE 6 over Cannonball River?
The structure is 300 ft (91.4 m) long with a longest span of 97 ft (29.7 m) and a deck 33 ft wide.
Who owns IRR BIA RTE 6 over Cannonball River?
It is owned by the Bureau of Indian Affairs.