89th Ave SW over Thirty Mile Creek
GoodHettinger County, North Dakota · 8 North 2 East of Mott · Structure no. 000000021131100
- Built
- 2011
- 14 years old
- Condition
- Good
- inspected September 2024
- Type
- Culvert
- Concrete
- Length
- 29 ft
- 2 main spans
- Daily traffic
- 20
- 2016 count
- Owner
- County
- County Highway Agency
About this bridge
89th Ave SW over Thirty Mile Creek is a concrete culvert carrying 89th Ave SW over Thirty Mile Creek in Hettinger County, North Dakota. It was built in 2011, so it is 14 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 20 vehicles a day, projected to reach 10 by 2036. The structure is 29 ft (8.8 m) long. If it were closed, the detour would be 3.7 mi (6 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 89th Ave SW over Thirty Mile Creek built?
It was built in 2011, making it 14 years old in 2025.
What condition is 89th Ave SW over Thirty Mile Creek 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 2024.
How much traffic does 89th Ave SW over Thirty Mile Creek carry?
About 20 vehicles per day (2016 count).
How long is 89th Ave SW over Thirty Mile Creek?
The structure is 29 ft (8.8 m) long with a longest span of 14 ft (4.3 m).
Who owns 89th Ave SW over Thirty Mile Creek?
It is owned by the County Highway Agency.