IRR US018 over Stinking Water Ck
FairCounty 102, South Dakota · 4.8 NE JCT Sd 391 · Structure no. 000000057430424
- Built
- 1948
- 77 years old
- Condition
- Fair
- inspected September 2023
- Type
- Culvert
- Concrete Continuous
- Length
- 31 ft
- 3 main spans
- Daily traffic
- 1,130
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
IRR US018 over Stinking Water Ck is a concrete continuous culvert carrying IRR US018 over Stinking Water Ck in County 102, South Dakota. It was built in 1948, so it is 77 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 1,130 vehicles a day, roughly 13% of them trucks, projected to reach 1,504 by 2044. The structure is 31 ft (9.5 m) long. If it were closed, the detour would be 31.1 mi (50 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was IRR US018 over Stinking Water Ck built?
It was built in 1948, making it 77 years old in 2025.
What condition is IRR US018 over Stinking Water 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 September 2023.
How much traffic does IRR US018 over Stinking Water Ck carry?
About 1,130 vehicles per day (2024 count), of which roughly 13% are trucks.
How long is IRR US018 over Stinking Water Ck?
The structure is 31 ft (9.5 m) long with a longest span of 10 ft (3 m).
Who owns IRR US018 over Stinking Water Ck?
It is owned by the State Highway Agency.