Mn 47 over Thains River
FairMille Lacs County, Minnesota · In Isle · Structure no. 91039
- Built
- 1961
- 64 years old
- Condition
- Fair
- inspected August 2024
- Type
- Culvert
- Concrete
- Length
- 27 ft
- 2 main spans
- Daily traffic
- 3,390
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
Mn 47 over Thains River is a concrete culvert carrying Mn 47 over Thains River in Mille Lacs 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 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 3,390 vehicles a day, roughly 8% of them trucks, projected to reach 3,500 by 2041. The structure is 27 ft (8.1 m) long. If it were closed, the detour would be 73.9 mi (119 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 | 8 Very Good | No problems noted. |
| Culvert | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Mn 47 over Thains River built?
It was built in 1961, making it 64 years old in 2025.
What condition is Mn 47 over Thains 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 August 2024.
How much traffic does Mn 47 over Thains River carry?
About 3,390 vehicles per day (2021 count), of which roughly 8% are trucks.
How long is Mn 47 over Thains River?
The structure is 27 ft (8.1 m) long with a longest span of 12 ft (3.8 m).
Who owns Mn 47 over Thains River?
It is owned by the State Highway Agency.