475 Avenue over South Fork Whetstone Rv
GoodGrant County, South Dakota · 3W & 0.3N Milbank · Structure no. 000000026260067
- Built
- 2008
- 17 years old
- Condition
- Good
- inspected August 2024
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 66 ft
- 1 main span
- Daily traffic
- 20
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
475 Avenue over South Fork Whetstone Rv is a prestressed concrete tee beam carrying 475 Avenue over South Fork Whetstone Rv in Grant County, South Dakota. It was built in 2008, so it is 17 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 20 vehicles a day, roughly 2% of them trucks, projected to reach 20 by 2032. The structure is 66 ft (20.2 m) long and 31 ft wide. If it were closed, the detour would be 1.9 mi (3 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 475 Avenue over South Fork Whetstone Rv built?
It was built in 2008, making it 17 years old in 2025.
What condition is 475 Avenue over South Fork Whetstone Rv in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in August 2024.
How much traffic does 475 Avenue over South Fork Whetstone Rv carry?
About 20 vehicles per day (2022 count), of which roughly 2% are trucks.
How long is 475 Avenue over South Fork Whetstone Rv?
The structure is 66 ft (20.2 m) long with a longest span of 65 ft (19.8 m) and a deck 31 ft wide.
Who owns 475 Avenue over South Fork Whetstone Rv?
It is owned by the County Highway Agency.