Csah 20 over I 90
GoodFreeborn County, Minnesota · 3.5 MI W of JCT TH 35 · Structure no. 24817
- Built
- 1968
- 57 years old
- Condition
- Good
- inspected August 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 262 ft
- 4 main spans
- Daily traffic
- 800
- 2017 count
- Owner
- State
- State Highway Agency
About this bridge
Csah 20 over I 90 is a prestressed concrete stringer/multi-beam or girder carrying Csah 20 over I 90 in Freeborn County, Minnesota. It was built in 1968, so it is 57 years old, older than the Minnesota average of 38.5 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 800 vehicles a day, projected to reach 800 by 2039. The structure is 262 ft (80 m) long and 40 ft wide. If it were closed, the detour would be 6.8 mi (11 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Csah 20 over I 90 built?
It was built in 1968, making it 57 years old in 2025.
What condition is Csah 20 over I 90 in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in August 2023.
How much traffic does Csah 20 over I 90 carry?
About 800 vehicles per day (2017 count).
How long is Csah 20 over I 90?
The structure is 262 ft (80 m) long with a longest span of 86 ft (26.1 m) and a deck 40 ft wide.
Who owns Csah 20 over I 90?
It is owned by the State Highway Agency.