I 90 over Aoi; Mississippi River
FairWinona County, Minnesota · At Minn/Wisc State Line · Structure no. 85801
- Built
- 2016
- 9 years old
- Condition
- Fair
- inspected October 2024
- Type
- Segmental Box Girder
- Prestressed Concrete
- Length
- 2,593 ft
- 4 main spans
- Daily traffic
- 13,950
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
I 90 over Aoi; Mississippi River is a prestressed concrete segmental box girder carrying I 90 over Aoi; Mississippi River in Winona County, Minnesota. It was built in 2016, so it is 9 years old, younger than the Minnesota average of 38.5 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 13,950 vehicles a day, roughly 13% of them trucks, projected to reach 13,000 by 2041. The structure is 2,593 ft (790.2 m) long and 45 ft wide. If it were closed, the detour would be 16.2 mi (26 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 | 7 Good | Some minor problems. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I 90 over Aoi; Mississippi River built?
It was built in 2016, making it 9 years old in 2025.
What condition is I 90 over Aoi; Mississippi River 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 October 2024.
How much traffic does I 90 over Aoi; Mississippi River carry?
About 13,950 vehicles per day (2021 count), of which roughly 13% are trucks.
How long is I 90 over Aoi; Mississippi River?
The structure is 2,593 ft (790.2 m) long with a longest span of 508 ft (154.8 m) and a deck 45 ft wide.
Who owns I 90 over Aoi; Mississippi River?
It is owned by the State Highway Agency.