231 ST over Ck
FairLake County, South Dakota · 2N & 3.2W Madison · Structure no. 000000040098110
- Built
- 1940
- 85 years old
- Condition
- Fair
- inspected August 2023
- Type
- Culvert
- Concrete Continuous
- Length
- 27 ft
- 3 main spans
- Daily traffic
- 55
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
231 ST over Ck is a concrete continuous culvert carrying 231 ST over Ck in Lake County, South Dakota. It was built in 1940, so it is 85 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 5 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 55 vehicles a day, roughly 2% of them trucks, projected to reach 55 by 2032. The structure is 27 ft (8.2 m) long. 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 |
|---|---|---|
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
| Culvert | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 231 ST over Ck built?
It was built in 1940, making it 85 years old in 2025.
What condition is 231 ST 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 2023.
How much traffic does 231 ST over Ck carry?
About 55 vehicles per day (2022 count), of which roughly 2% are trucks.
How long is 231 ST over Ck?
The structure is 27 ft (8.2 m) long with a longest span of 8 ft (2.4 m).
Who owns 231 ST over Ck?
It is owned by the County Highway Agency.