M 1 over Tamarack River
PoorPosted for loadCarlton County, Minnesota · In Wright · Structure no. L8781
- Built
- 1940
- 85 years old
- Condition
- Poor
- inspected April 2024
- Type
- Culvert
- Concrete
- Length
- 22 ft
- 2 main spans
- Daily traffic
- 180
- 1977 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
M 1 over Tamarack River is a concrete culvert carrying M 1 over Tamarack River in Carlton County, Minnesota. It was built in 1940, so it is 85 years old, older than the Minnesota average of 38.5 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.
It carries about 180 vehicles a day, roughly 8% of them trucks, projected to reach 180 by 2029. The structure is 22 ft (6.8 m) long. If it were closed, the detour would be 1.2 mi (2 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
| Culvert | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was M 1 over Tamarack River built?
It was built in 1940, making it 85 years old in 2025.
What condition is M 1 over Tamarack River in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in April 2024.
How much traffic does M 1 over Tamarack River carry?
About 180 vehicles per day (1977 count), of which roughly 8% are trucks.
How long is M 1 over Tamarack River?
The structure is 22 ft (6.8 m) long with a longest span of 10 ft (3 m).
Who owns M 1 over Tamarack River?
It is owned by the City or Municipal Highway Agency.