Mn 15 over Little Cottonwood River
FairBrown County, Minnesota · 2.1 MI S of TH 68 · Structure no. 08011
- Built
- 1988
- 37 years old
- Condition
- Fair
- inspected June 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 158 ft
- 2 main spans
- Daily traffic
- 3,450
- 2016 count
- Owner
- State
- State Highway Agency
About this bridge
Mn 15 over Little Cottonwood River is a prestressed concrete stringer/multi-beam or girder carrying Mn 15 over Little Cottonwood River in Brown County, Minnesota. It was built in 1988, so it is 37 years old, younger 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 3,450 vehicles a day, roughly 10% of them trucks, projected to reach 3,450 by 2036. The structure is 158 ft (48.2 m) long and 50 ft wide. If it were closed, the detour would be 11.8 mi (19 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 | 7 Good | Some minor problems. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 15 over Little Cottonwood River built?
It was built in 1988, making it 37 years old in 2025.
What condition is Mn 15 over Little Cottonwood 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 June 2023.
How much traffic does Mn 15 over Little Cottonwood River carry?
About 3,450 vehicles per day (2016 count), of which roughly 10% are trucks.
How long is Mn 15 over Little Cottonwood River?
The structure is 158 ft (48.2 m) long with a longest span of 77 ft (23.4 m) and a deck 50 ft wide.
Who owns Mn 15 over Little Cottonwood River?
It is owned by the State Highway Agency.