Csah 4 over Little Cobb River
FairWaseca County, Minnesota · 0.2 MI W of JCT TH 83 · Structure no. 91686
- Built
- 1978
- 47 years old
- Condition
- Fair
- inspected December 2021
- Type
- Culvert
- Concrete
- Length
- 27 ft
- 2 main spans
- Daily traffic
- 100
- 2016 count
- Owner
- County
- County Highway Agency
About this bridge
Csah 4 over Little Cobb River is a concrete culvert carrying Csah 4 over Little Cobb River in Waseca County, Minnesota. It was built in 1978, so it is 47 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 100 vehicles a day, projected to reach 100 by 2039. The structure is 27 ft (8.2 m) long. If it were closed, the detour would be 1.9 mi (3 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 |
|---|---|---|
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
| Culvert | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Csah 4 over Little Cobb River built?
It was built in 1978, making it 47 years old in 2025.
What condition is Csah 4 over Little Cobb 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 December 2021.
How much traffic does Csah 4 over Little Cobb River carry?
About 100 vehicles per day (2016 count).
How long is Csah 4 over Little Cobb River?
The structure is 27 ft (8.2 m) long with a longest span of 11 ft (3.5 m).
Who owns Csah 4 over Little Cobb River?
It is owned by the County Highway Agency.