123rd Ave over Knife River
GoodBillings County, North Dakota · 6 East 3 North Fairfield · Structure no. 000000004127060
- Built
- 1982
- 43 years old
- Condition
- Good
- inspected June 2023
- Type
- Box Beam or Girders - Single or Spread
- Prestressed Concrete
- Length
- 72 ft
- 1 main span
- Daily traffic
- 80
- 2018 count
- Owner
- County
- County Highway Agency
About this bridge
123rd Ave over Knife River is a prestressed concrete box beam or girders - single or spread carrying 123rd Ave over Knife River in Billings County, North Dakota. It was built in 1982, so it is 43 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 80 vehicles a day, projected to reach 70 by 2038. The structure is 72 ft (21.9 m) long and 32 ft wide. If it were closed, the detour would be 11.2 mi (18 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 | 8 Very Good | No problems noted. |
| 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 123rd Ave over Knife River built?
It was built in 1982, making it 43 years old in 2025.
What condition is 123rd Ave over 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 June 2023.
How much traffic does 123rd Ave over Knife River carry?
About 80 vehicles per day (2018 count).
How long is 123rd Ave over Knife River?
The structure is 72 ft (21.9 m) long with a longest span of 67 ft (20.4 m) and a deck 32 ft wide.
Who owns 123rd Ave over Knife River?
It is owned by the County Highway Agency.