Interstate 29 over Buffalo Coulee
GoodTraill County, North Dakota · 9 North Nd 200 · Structure no. 0029119775
- Built
- 1969
- 56 years old
- Condition
- Good
- inspected June 2023
- Type
- Culvert
- Concrete
- Length
- 34 ft
- 3 main spans
- Daily traffic
- 9,400
- 2019 count
- Owner
- State
- State Highway Agency
About this bridge
Interstate 29 over Buffalo Coulee is a concrete culvert carrying Interstate 29 over Buffalo Coulee in Traill County, North Dakota. It was built in 1969, so it is 56 years old, older 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 9,400 vehicles a day, roughly 18% of them trucks, projected to reach 9,400 by 2039. The structure is 34 ft (10.4 m) long. If it were closed, the detour would be 1.9 mi (3 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Interstate 29 over Buffalo Coulee built?
It was built in 1969, making it 56 years old in 2025.
What condition is Interstate 29 over Buffalo Coulee 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 Interstate 29 over Buffalo Coulee carry?
About 9,400 vehicles per day (2019 count), of which roughly 18% are trucks.
How long is Interstate 29 over Buffalo Coulee?
The structure is 34 ft (10.4 m) long with a longest span of 11 ft (3.4 m).
Who owns Interstate 29 over Buffalo Coulee?
It is owned by the State Highway Agency.