31160 474th Ave over Ck
FairUnion County, South Dakota · 2E & 13.6S Beresford · Structure no. 000000064040146
- Built
- 1945
- 80 years old, rebuilt 1987
- Condition
- Fair
- inspected August 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 25 ft
- 1 main span
- Daily traffic
- 35
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
31160 474th Ave over Ck is a steel stringer/multi-beam or girder carrying 31160 474th Ave over Ck in Union County, South Dakota. It was built in 1945 and reconstructed in 1987, so it is 80 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 35 vehicles a day, roughly 2% of them trucks, projected to reach 35 by 2032. The structure is 25 ft (7.5 m) long and 28 ft wide. If it were closed, the detour would be 3.1 mi (5 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 | 8 Very Good | No problems noted. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 31160 474th Ave over Ck built?
It was built in 1945, making it 80 years old in 2025. It was reconstructed in 1987.
What condition is 31160 474th Ave over 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 August 2024.
How much traffic does 31160 474th Ave over Ck carry?
About 35 vehicles per day (2022 count), of which roughly 2% are trucks.
How long is 31160 474th Ave over Ck?
The structure is 25 ft (7.5 m) long with a longest span of 23 ft (6.9 m) and a deck 28 ft wide.
Who owns 31160 474th Ave over Ck?
It is owned by the County Highway Agency.