274th Street over Nine Mile Creek
FairLincoln County, South Dakota · 1S & 0.3E of Harrisburg · Structure no. 000000042113060
- Built
- 1935
- 90 years old
- Condition
- Fair
- inspected June 2024
- Type
- Slab
- Concrete Continuous
- Length
- 46 ft
- 3 main spans
- Daily traffic
- 60
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
274th Street over Nine Mile Creek is a concrete continuous slab carrying 274th Street over Nine Mile Creek in Lincoln County, South Dakota. It was built in 1935, so it is 90 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 5 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 60 vehicles a day, roughly 2% of them trucks, projected to reach 60 by 2032. The structure is 46 ft (14 m) long and 19 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 274th Street over Nine Mile Creek built?
It was built in 1935, making it 90 years old in 2025.
What condition is 274th Street over Nine Mile 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 June 2024.
How much traffic does 274th Street over Nine Mile Creek carry?
About 60 vehicles per day (2022 count), of which roughly 2% are trucks.
How long is 274th Street over Nine Mile Creek?
The structure is 46 ft (14 m) long with a longest span of 15 ft (4.6 m) and a deck 19 ft wide.
Who owns 274th Street over Nine Mile Creek?
It is owned by the County Highway Agency.