Csah 30 over I 90
FairFreeborn County, Minnesota · 7.9 MI E of JCT TH 35 · Structure no. 9729
- Built
- 1961
- 64 years old
- Condition
- Fair
- inspected September 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 200 ft
- 4 main spans
- Daily traffic
- 470
- 2017 count
- Owner
- State
- State Highway Agency
About this bridge
Csah 30 over I 90 is a prestressed concrete stringer/multi-beam or girder carrying Csah 30 over I 90 in Freeborn County, Minnesota. It was built in 1961, so it is 64 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 5 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 470 vehicles a day, projected to reach 470 by 2039. The structure is 200 ft (61.1 m) long and 33 ft wide. If it were closed, the detour would be 8.7 mi (14 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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 Csah 30 over I 90 built?
It was built in 1961, making it 64 years old in 2025.
What condition is Csah 30 over I 90 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 2023.
How much traffic does Csah 30 over I 90 carry?
About 470 vehicles per day (2017 count).
How long is Csah 30 over I 90?
The structure is 200 ft (61.1 m) long with a longest span of 67 ft (20.5 m) and a deck 33 ft wide.
Who owns Csah 30 over I 90?
It is owned by the State Highway Agency.