I090 W over County RD
FairJackson County, South Dakota · 3.6 NW Sd 240 Interchange · Structure no. 000000036090087
- Built
- 1974
- 51 years old
- Condition
- Fair
- inspected April 2024
- Type
- Slab
- Concrete Continuous
- Length
- 140 ft
- 3 main spans
- Daily traffic
- 3,504
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
I090 W over County RD is a concrete continuous slab carrying I090 W over County RD in Jackson County, South Dakota. It was built in 1974, so it is 51 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 3,504 vehicles a day, roughly 28% of them trucks, projected to reach 4,927 by 2044. The structure is 140 ft (42.8 m) long and 43 ft wide.
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 |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I090 W over County RD built?
It was built in 1974, making it 51 years old in 2025.
What condition is I090 W over County RD 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 April 2024.
How much traffic does I090 W over County RD carry?
About 3,504 vehicles per day (2024 count), of which roughly 28% are trucks.
How long is I090 W over County RD?
The structure is 140 ft (42.8 m) long with a longest span of 52 ft (15.8 m) and a deck 43 ft wide.
Who owns I090 W over County RD?
It is owned by the State Highway Agency.