Csah 4 over Zumbro River
FairWabasha County, Minnesota · 1.1 MI SE of JCT Csah 13 · Structure no. 79524
- Built
- 1982
- 43 years old
- Condition
- Fair
- inspected November 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 531 ft
- 5 main spans
- Daily traffic
- 770
- 2018 count
- Owner
- County
- County Highway Agency
About this bridge
Csah 4 over Zumbro River is a prestressed concrete stringer/multi-beam or girder carrying Csah 4 over Zumbro River in Wabasha County, Minnesota. It was built in 1982, so it is 43 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 770 vehicles a day, projected to reach 620 by 2038. The structure is 531 ft (161.8 m) long and 35 ft wide. If it were closed, the detour would be 11.2 mi (18 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 | 7 Good | Some minor problems. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Csah 4 over Zumbro River built?
It was built in 1982, making it 43 years old in 2025.
What condition is Csah 4 over Zumbro 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 November 2024.
How much traffic does Csah 4 over Zumbro River carry?
About 770 vehicles per day (2018 count).
How long is Csah 4 over Zumbro River?
The structure is 531 ft (161.8 m) long with a longest span of 105 ft (32.1 m) and a deck 35 ft wide.
Who owns Csah 4 over Zumbro River?
It is owned by the County Highway Agency.