US018 over West Cottonwood Ck
FairTripp County, South Dakota · 2.5 W JCT Sd 53 · Structure no. 000000062075270
- Built
- 1988
- 37 years old
- Condition
- Fair
- inspected March 2021
- Type
- Culvert
- Concrete Continuous
- Length
- 21 ft
- 2 main spans
- Daily traffic
- 1,139
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
US018 over West Cottonwood Ck is a concrete continuous culvert carrying US018 over West Cottonwood Ck in Tripp County, South Dakota. It was built in 1988, so it is 37 years old, younger 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 1,139 vehicles a day, roughly 18% of them trucks, projected to reach 1,546 by 2044. The structure is 21 ft (6.3 m) long. If it were closed, the detour would be 29.8 mi (48 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 US018 over West Cottonwood Ck built?
It was built in 1988, making it 37 years old in 2025.
What condition is US018 over West Cottonwood 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 March 2021.
How much traffic does US018 over West Cottonwood Ck carry?
About 1,139 vehicles per day (2024 count), of which roughly 18% are trucks.
How long is US018 over West Cottonwood Ck?
The structure is 21 ft (6.3 m) long with a longest span of 10 ft (3 m).
Who owns US018 over West Cottonwood Ck?
It is owned by the State Highway Agency.