Mn 171 over Red River of the North
FairKittson County, Minnesota · At N Dakota State Line · Structure no. 35007
- Built
- 1982
- 43 years old
- Condition
- Fair
- inspected August 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 2,080 ft
- 18 main spans
- Daily traffic
- 558
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
Mn 171 over Red River of the North is a steel continuous stringer/multi-beam or girder carrying Mn 171 over Red River of the North in Kittson County, Minnesota. It was built in 1982, so it is 43 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 5 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 558 vehicles a day, roughly 22% of them trucks, projected to reach 690 by 2041. The structure is 2,080 ft (634 m) long and 55 ft wide. If it were closed, the detour would be 39.8 mi (64 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 |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Mn 171 over Red River of the North built?
It was built in 1982, making it 43 years old in 2025.
What condition is Mn 171 over Red River of the North 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 171 over Red River of the North carry?
About 558 vehicles per day (2021 count), of which roughly 22% are trucks.
How long is Mn 171 over Red River of the North?
The structure is 2,080 ft (634 m) long with a longest span of 240 ft (73.2 m) and a deck 55 ft wide.
Who owns Mn 171 over Red River of the North?
It is owned by the State Highway Agency.