387th Avenue over Cain Creek
FairBeadle County, South Dakota · 2N of Wolsey · Structure no. 000000003110132
- Built
- 1935
- 90 years old
- Condition
- Fair
- inspected September 2024
- Type
- Slab
- Concrete Continuous
- Length
- 87 ft
- 5 main spans
- Daily traffic
- 2,600
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
387th Avenue over Cain Creek is a concrete continuous slab carrying 387th Avenue over Cain Creek in Beadle County, South Dakota. It was built in 1935, so it is 90 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 2,600 vehicles a day, roughly 2% of them trucks, projected to reach 2,600 by 2032. The structure is 87 ft (26.5 m) long and 33 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 387th Avenue over Cain Creek built?
It was built in 1935, making it 90 years old in 2025.
What condition is 387th Avenue over Cain Creek 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 September 2024.
How much traffic does 387th Avenue over Cain Creek carry?
About 2,600 vehicles per day (2022 count), of which roughly 2% are trucks.
How long is 387th Avenue over Cain Creek?
The structure is 87 ft (26.5 m) long with a longest span of 17 ft (5.2 m) and a deck 33 ft wide.
Who owns 387th Avenue over Cain Creek?
It is owned by the County Highway Agency.