US012 over South Fork Whetstone Rv
FairGrant County, South Dakota · 6.8 W JCT Sd 15 · Structure no. 000000026222069
- Built
- 1997
- 28 years old
- Condition
- Fair
- inspected November 2024
- Type
- Culvert
- Concrete Continuous
- Length
- 37 ft
- 2 main spans
- Daily traffic
- 1,470
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
US012 over South Fork Whetstone Rv is a concrete continuous culvert carrying US012 over South Fork Whetstone Rv in Grant County, South Dakota. It was built in 1997, so it is 28 years old, younger 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 1,470 vehicles a day, roughly 31% of them trucks, projected to reach 2,008 by 2044. The structure is 37 ft (11.2 m) long. If it were closed, the detour would be 21.7 mi (35 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 |
|---|---|---|
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
| Culvert | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US012 over South Fork Whetstone Rv built?
It was built in 1997, making it 28 years old in 2025.
What condition is US012 over South Fork Whetstone 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 November 2024.
How much traffic does US012 over South Fork Whetstone Rv carry?
About 1,470 vehicles per day (2024 count), of which roughly 31% are trucks.
How long is US012 over South Fork Whetstone Rv?
The structure is 37 ft (11.2 m) long with a longest span of 18 ft (5.5 m).
Who owns US012 over South Fork Whetstone Rv?
It is owned by the State Highway Agency.