Mn 1 over Blackduck River
GoodBeltrami County, Minnesota · 10.4 MI E of Redby · Structure no. 04015
- Built
- 2013
- 12 years old
- Condition
- Good
- inspected May 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 122 ft
- 1 main span
- Daily traffic
- 342
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
Mn 1 over Blackduck River is a prestressed concrete stringer/multi-beam or girder carrying Mn 1 over Blackduck River in Beltrami County, Minnesota. It was built in 2013, so it is 12 years old, younger than the Minnesota average of 38.5 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 342 vehicles a day, roughly 18% of them trucks, projected to reach 305 by 2041. The structure is 122 ft (37.3 m) long and 39 ft wide. If it were closed, the detour would be 21.7 mi (35 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 8 Very Good | No problems noted. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Mn 1 over Blackduck River built?
It was built in 2013, making it 12 years old in 2025.
What condition is Mn 1 over Blackduck River in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in May 2024.
How much traffic does Mn 1 over Blackduck River carry?
About 342 vehicles per day (2021 count), of which roughly 18% are trucks.
How long is Mn 1 over Blackduck River?
The structure is 122 ft (37.3 m) long with a longest span of 119 ft (36.3 m) and a deck 39 ft wide.
Who owns Mn 1 over Blackduck River?
It is owned by the State Highway Agency.