I090 over Alkali Ck
FairMeade County, South Dakota · 0.5 NW B.H. Natl Cemetary · Structure no. 000000047045458
- Built
- 1947
- 78 years old, rebuilt 1963
- Condition
- Fair
- inspected December 2024
- Type
- Culvert
- Concrete Continuous
- Length
- 25 ft
- 2 main spans
- Daily traffic
- 18,840
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
I090 over Alkali Ck is a concrete continuous culvert carrying I090 over Alkali Ck in Meade County, South Dakota. It was built in 1947 and reconstructed in 1963, so it is 78 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 18,840 vehicles a day, roughly 9% of them trucks, projected to reach 26,508 by 2043. The structure is 25 ft (7.5 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 | 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 I090 over Alkali Ck built?
It was built in 1947, making it 78 years old in 2025. It was reconstructed in 1963.
What condition is I090 over Alkali 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 December 2024.
How much traffic does I090 over Alkali Ck carry?
About 18,840 vehicles per day (2023 count), of which roughly 9% are trucks.
How long is I090 over Alkali Ck?
The structure is 25 ft (7.5 m) long with a longest span of 12 ft (3.7 m).
Who owns I090 over Alkali Ck?
It is owned by the State Highway Agency.