280 Street over Dog Ear Ck
FairTripp County, South Dakota · 1.2W & 2S Winner · Structure no. 000000062178300
- Built
- 1947
- 78 years old, rebuilt 1978
- Condition
- Fair
- inspected June 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 31 ft
- 2 main spans
- Daily traffic
- 49
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
280 Street over Dog Ear Ck is a steel stringer/multi-beam or girder carrying 280 Street over Dog Ear Ck in Tripp County, South Dakota. It was built in 1947 and reconstructed in 1978, so it is 78 years old, older than the South Dakota average of 48.9 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.
It carries about 49 vehicles a day, roughly 3% of them trucks, projected to reach 49 by 2032. The structure is 31 ft (9.4 m) long and 24 ft wide. If it were closed, the detour would be 9.9 mi (16 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 280 Street over Dog Ear Ck built?
It was built in 1947, making it 78 years old in 2025. It was reconstructed in 1978.
What condition is 280 Street over Dog Ear Ck 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 June 2023.
How much traffic does 280 Street over Dog Ear Ck carry?
About 49 vehicles per day (2022 count), of which roughly 3% are trucks.
How long is 280 Street over Dog Ear Ck?
The structure is 31 ft (9.4 m) long with a longest span of 15 ft (4.6 m) and a deck 24 ft wide.
Who owns 280 Street over Dog Ear Ck?
It is owned by the County Highway Agency.