US085 over Miller Ck
FairLawrence County, South Dakota · 0.3 S I 90 Interch · Structure no. 000000041156089
- Built
- 1971
- 54 years old
- Condition
- Fair
- inspected June 2023
- Type
- Culvert
- Concrete Continuous
- Length
- 24 ft
- 2 main spans
- Daily traffic
- 5,754
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US085 over Miller Ck is a concrete continuous culvert carrying US085 over Miller Ck in Lawrence County, South Dakota. It was built in 1971, so it is 54 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 5,754 vehicles a day, roughly 14% of them trucks, projected to reach 7,786 by 2043. The structure is 24 ft (7.3 m) long. If it were closed, the detour would be 0.6 mi (1 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 US085 over Miller Ck built?
It was built in 1971, making it 54 years old in 2025.
What condition is US085 over Miller 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 June 2023.
How much traffic does US085 over Miller Ck carry?
About 5,754 vehicles per day (2023 count), of which roughly 14% are trucks.
How long is US085 over Miller Ck?
The structure is 24 ft (7.3 m) long with a longest span of 11 ft (3.5 m).
Who owns US085 over Miller Ck?
It is owned by the State Highway Agency.