257th Street over W. Fork of Vermillion Rv
FairMcCook County, South Dakota · 4S & 0.3E of Salem · Structure no. 000000044107130
- Built
- 1925
- 100 years old, rebuilt 1975
- Condition
- Fair
- inspected June 2024
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 45 ft
- 1 main span
- Daily traffic
- 155
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
257th Street over W. Fork of Vermillion Rv is a prestressed concrete tee beam carrying 257th Street over W. Fork of Vermillion Rv in McCook County, South Dakota. It was built in 1925 and reconstructed in 1975, so it is 100 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 155 vehicles a day, roughly 2% of them trucks, projected to reach 155 by 2032. The structure is 45 ft (13.7 m) long and 30 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 257th Street over W. Fork of Vermillion Rv built?
It was built in 1925, making it 100 years old in 2025. It was reconstructed in 1975.
What condition is 257th Street over W. Fork of Vermillion Rv 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 257th Street over W. Fork of Vermillion Rv carry?
About 155 vehicles per day (2022 count), of which roughly 2% are trucks.
How long is 257th Street over W. Fork of Vermillion Rv?
The structure is 45 ft (13.7 m) long with a longest span of 44 ft (13.4 m) and a deck 30 ft wide.
Who owns 257th Street over W. Fork of Vermillion Rv?
It is owned by the County Highway Agency.