SD015 over North Fork Whetstone Rv
FairGrant County, South Dakota · 6.0 N JCT US 12 · Structure no. 000000026290014
- Built
- 1957
- 68 years old
- Condition
- Fair
- inspected November 2024
- Type
- Slab
- Concrete Continuous
- Length
- 175 ft
- 5 main spans
- Daily traffic
- 1,321
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
SD015 over North Fork Whetstone Rv is a concrete continuous slab carrying SD015 over North Fork Whetstone Rv in Grant County, South Dakota. It was built in 1957, so it is 68 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 1,321 vehicles a day, roughly 7% of them trucks, projected to reach 1,804 by 2044. The structure is 175 ft (53.2 m) long and 34 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SD015 over North Fork Whetstone Rv built?
It was built in 1957, making it 68 years old in 2025.
What condition is SD015 over North 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 SD015 over North Fork Whetstone Rv carry?
About 1,321 vehicles per day (2024 count), of which roughly 7% are trucks.
How long is SD015 over North Fork Whetstone Rv?
The structure is 175 ft (53.2 m) long with a longest span of 35 ft (10.8 m) and a deck 34 ft wide.
Who owns SD015 over North Fork Whetstone Rv?
It is owned by the State Highway Agency.