Mn 37 over East Swan River
FairSt. Louis County, Minnesota · 3.1 MI E of JCT TH 169 · Structure no. 8811
- Built
- 1953
- 72 years old
- Condition
- Fair
- inspected May 2024
- Type
- Culvert
- Concrete
- Length
- 27 ft
- 2 main spans
- Daily traffic
- 6,400
- 2019 count
- Owner
- State
- State Highway Agency
About this bridge
Mn 37 over East Swan River is a concrete culvert carrying Mn 37 over East Swan River in St. Louis County, Minnesota. It was built in 1953, so it is 72 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 6,400 vehicles a day, roughly 7% of them trucks, projected to reach 6,500 by 2039. The structure is 27 ft (8.2 m) long. If it were closed, the detour would be 6.8 mi (11 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 Mn 37 over East Swan River built?
It was built in 1953, making it 72 years old in 2025.
What condition is Mn 37 over East Swan 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 May 2024.
How much traffic does Mn 37 over East Swan River carry?
About 6,400 vehicles per day (2019 count), of which roughly 7% are trucks.
How long is Mn 37 over East Swan River?
The structure is 27 ft (8.2 m) long with a longest span of 12 ft (3.7 m).
Who owns Mn 37 over East Swan River?
It is owned by the State Highway Agency.