21st ST SW over Otter Creek
FairPosted for loadOliver County, North Dakota · 8 West of Hannover · Structure no. 000000033108130
- Built
- 1960
- 65 years old
- Condition
- Fair
- inspected July 2024
- Type
- Channel Beam
- Concrete
- Length
- 36 ft
- 1 main span
- Daily traffic
- 90
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
21st ST SW over Otter Creek is a concrete channel beam carrying 21st ST SW over Otter Creek in Oliver County, North Dakota. It was built in 1960, so it is 65 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 fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.
It carries about 90 vehicles a day, roughly 10% of them trucks, projected to reach 122 by 2042. The structure is 36 ft (11 m) long and 29 ft wide. If it were closed, the detour would be 18 mi (29 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 21st ST SW over Otter Creek built?
It was built in 1960, making it 65 years old in 2025.
What condition is 21st ST SW over Otter Creek in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in July 2024.
How much traffic does 21st ST SW over Otter Creek carry?
About 90 vehicles per day (2022 count), of which roughly 10% are trucks.
How long is 21st ST SW over Otter Creek?
The structure is 36 ft (11 m) long with a longest span of 34 ft (10.4 m) and a deck 29 ft wide.
Who owns 21st ST SW over Otter Creek?
It is owned by the County Highway Agency.