I090 E over Polo Ck
FairLawrence County, South Dakota · 1 E US 85 S Interch · Structure no. 000000041162082
- Built
- 1971
- 54 years old
- Condition
- Fair
- inspected January 2023
- Type
- Slab
- Concrete Continuous
- Length
- 106 ft
- 3 main spans
- Daily traffic
- 7,590
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
I090 E over Polo Ck is a concrete continuous slab carrying I090 E over Polo 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 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 7,590 vehicles a day, roughly 17% of them trucks, projected to reach 11,916 by 2044. The structure is 106 ft (32.3 m) long and 41 ft wide. 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 |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I090 E over Polo Ck built?
It was built in 1971, making it 54 years old in 2025.
What condition is I090 E over Polo 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 January 2023.
How much traffic does I090 E over Polo Ck carry?
About 7,590 vehicles per day (2024 count), of which roughly 17% are trucks.
How long is I090 E over Polo Ck?
The structure is 106 ft (32.3 m) long with a longest span of 38 ft (11.6 m) and a deck 41 ft wide.
Who owns I090 E over Polo Ck?
It is owned by the State Highway Agency.