I 90 over Csah 20
FairOlmsted County, Minnesota · 3.1 MI NE of JCT TH 63 · Structure no. 55803
- Built
- 1969
- 56 years old
- Condition
- Fair
- inspected September 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 151 ft
- 3 main spans
- Daily traffic
- 2,700
- 2014 count
- Owner
- State
- State Highway Agency
About this bridge
I 90 over Csah 20 is a prestressed concrete stringer/multi-beam or girder carrying I 90 over Csah 20 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 38% of them trucks, projected to reach 2,700 by 2039. The structure is 151 ft (46.1 m) long and 45 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 | 7 Good | Some minor problems. |
| 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 20 built?
It was built in 1969, making it 56 years old in 2025.
What condition is I 90 over Csah 20 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 20 carry?
About 2,700 vehicles per day (2014 count), of which roughly 38% are trucks.
How long is I 90 over Csah 20?
The structure is 151 ft (46.1 m) long with a longest span of 60 ft (18.2 m) and a deck 45 ft wide.
Who owns I 90 over Csah 20?
It is owned by the State Highway Agency.