I090 E over Platte Ck
FairAurora County, South Dakota · 3.2 W White Lake Interch · Structure no. 000000002014138
- Built
- 1964
- 61 years old
- Condition
- Fair
- inspected September 2022
- Type
- Slab
- Concrete Continuous
- Length
- 106 ft
- 3 main spans
- Daily traffic
- 4,425
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
I090 E over Platte Ck is a concrete continuous slab carrying I090 E over Platte Ck in Aurora County, South Dakota. It was built in 1964, so it is 61 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 4,425 vehicles a day, roughly 32% of them trucks, projected to reach 6,403 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 | 7 Good | Some minor problems. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I090 E over Platte Ck built?
It was built in 1964, making it 61 years old in 2025.
What condition is I090 E over Platte 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 2022.
How much traffic does I090 E over Platte Ck carry?
About 4,425 vehicles per day (2024 count), of which roughly 32% are trucks.
How long is I090 E over Platte Ck?
The structure is 106 ft (32.3 m) long with a longest span of 40 ft (12.2 m) and a deck 41 ft wide.
Who owns I090 E over Platte Ck?
It is owned by the State Highway Agency.