474th Avenue over N. Fork Whetstone Rv
GoodRoberts County, South Dakota · 2E & 1.4N of Corona · Structure no. 000000055250396
- Built
- 2003
- 22 years old
- Condition
- Good
- inspected July 2024
- Type
- Slab
- Concrete Continuous
- Length
- 127 ft
- 3 main spans
- Daily traffic
- 125
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
474th Avenue over N. Fork Whetstone Rv is a concrete continuous slab carrying 474th Avenue over N. Fork Whetstone Rv in Roberts County, South Dakota. It was built in 2003, so it is 22 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 125 vehicles a day, roughly 3% of them trucks, projected to reach 137 by 2032. The structure is 127 ft (38.8 m) long and 33 ft wide. If it were closed, the detour would be 3.7 mi (6 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 | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 474th Avenue over N. Fork Whetstone Rv built?
It was built in 2003, making it 22 years old in 2025.
What condition is 474th Avenue over N. 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 July 2024.
How much traffic does 474th Avenue over N. Fork Whetstone Rv carry?
About 125 vehicles per day (2022 count), of which roughly 3% are trucks.
How long is 474th Avenue over N. Fork Whetstone Rv?
The structure is 127 ft (38.8 m) long with a longest span of 46 ft (13.9 m) and a deck 33 ft wide.
Who owns 474th Avenue over N. Fork Whetstone Rv?
It is owned by the County Highway Agency.