SD034 over Willow Ck
FairButte County, South Dakota · 0.7 E JCT US 85 · Structure no. 000000010099394
- Built
- 1939
- 86 years old, rebuilt 1964
- Condition
- Fair
- inspected February 2024
- Type
- Culvert
- Concrete Continuous
- Length
- 25 ft
- 2 main spans
- Daily traffic
- 3,961
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
SD034 over Willow Ck is a concrete continuous culvert carrying SD034 over Willow Ck in Butte County, South Dakota. It was built in 1939 and reconstructed in 1964, so it is 86 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 3,961 vehicles a day, roughly 23% of them trucks, projected to reach 5,684 by 2044. The structure is 25 ft (7.6 m) long. If it were closed, the detour would be 23 mi (37 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 |
|---|---|---|
| Channel and channel protection | 7 Good | Some minor problems. |
| Culvert | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SD034 over Willow Ck built?
It was built in 1939, making it 86 years old in 2025. It was reconstructed in 1964.
What condition is SD034 over Willow 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 February 2024.
How much traffic does SD034 over Willow Ck carry?
About 3,961 vehicles per day (2024 count), of which roughly 23% are trucks.
How long is SD034 over Willow Ck?
The structure is 25 ft (7.6 m) long with a longest span of 12 ft (3.7 m).
Who owns SD034 over Willow Ck?
It is owned by the State Highway Agency.