I 90 over Csah 1
FairOlmsted County, Minnesota · 4.8 MI NE of JCT TH 63 · Structure no. 55806
- Built
- 1969
- 56 years old
- Condition
- Fair
- inspected September 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 157 ft
- 3 main spans
- Daily traffic
- 2,700
- 2014 count
- Owner
- State
- State Highway Agency
About this bridge
I 90 over Csah 1 is a prestressed concrete stringer/multi-beam or girder carrying I 90 over Csah 1 in Olmsted County, Minnesota. It was built in 1969, so it is 56 years old, older 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 2,700 vehicles a day, roughly 24% of them trucks, projected to reach 2,700 by 2034. The structure is 157 ft (48 m) long and 43 ft wide. If it were closed, the detour would be 18 mi (29 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I 90 over Csah 1 built?
It was built in 1969, making it 56 years old in 2025.
What condition is I 90 over Csah 1 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 2024.
How much traffic does I 90 over Csah 1 carry?
About 2,700 vehicles per day (2014 count), of which roughly 24% are trucks.
How long is I 90 over Csah 1?
The structure is 157 ft (48 m) long with a longest span of 58 ft (17.8 m) and a deck 43 ft wide.
Who owns I 90 over Csah 1?
It is owned by the State Highway Agency.