31450 471 Ave. over Ck
GoodUnion County, South Dakota · 16.5S Beresford · Structure no. 000000064010175
- Built
- 1955
- 70 years old
- Condition
- Good
- inspected August 2024
- Type
- Culvert
- Concrete Continuous
- Length
- 33 ft
- 4 main spans
- Daily traffic
- 400
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
31450 471 Ave. over Ck is a concrete continuous culvert carrying 31450 471 Ave. over Ck in Union County, South Dakota. It was built in 1955, so it is 70 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 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 400 vehicles a day, roughly 2% of them trucks, projected to reach 400 by 2032. The structure is 33 ft (10.2 m) long. 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 |
|---|---|---|
| Channel and channel protection | 7 Good | Some minor problems. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 31450 471 Ave. over Ck built?
It was built in 1955, making it 70 years old in 2025.
What condition is 31450 471 Ave. over Ck 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 31450 471 Ave. over Ck carry?
About 400 vehicles per day (2022 count), of which roughly 2% are trucks.
How long is 31450 471 Ave. over Ck?
The structure is 33 ft (10.2 m) long with a longest span of 8 ft (2.4 m).
Who owns 31450 471 Ave. over Ck?
It is owned by the County Highway Agency.