US012 over N Fork Whetstone Ck
FairGrant County, South Dakota · 0.6 W JCT Sd 15 · Structure no. 000000026284073
- Built
- 2013
- 12 years old
- Condition
- Fair
- inspected March 2023
- Type
- Culvert
- Concrete
- Length
- 63 ft
- 5 main spans
- Daily traffic
- 2,192
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
US012 over N Fork Whetstone Ck is a concrete culvert carrying US012 over N Fork Whetstone Ck in Grant County, South Dakota. It was built in 2013, so it is 12 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 2,192 vehicles a day, roughly 26% of them trucks, projected to reach 2,994 by 2044. The structure is 63 ft (19.2 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 | 8 Very Good | No problems noted. |
| Culvert | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US012 over N Fork Whetstone Ck built?
It was built in 2013, making it 12 years old in 2025.
What condition is US012 over N Fork Whetstone 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 March 2023.
How much traffic does US012 over N Fork Whetstone Ck carry?
About 2,192 vehicles per day (2024 count), of which roughly 26% are trucks.
How long is US012 over N Fork Whetstone Ck?
The structure is 63 ft (19.2 m) long with a longest span of 12 ft (3.7 m).
Who owns US012 over N Fork Whetstone Ck?
It is owned by the State Highway Agency.