Mn 4 over Little Cottonwood River
GoodBrown County, Minnesota · 7.2 MI S of JCT TH 14 · Structure no. 08006
- Built
- 2011
- 14 years old
- Condition
- Good
- inspected September 2024
- Type
- Tee Beam
- Concrete
- Length
- 106 ft
- 3 main spans
- Daily traffic
- 1,057
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
Mn 4 over Little Cottonwood River is a concrete tee beam carrying Mn 4 over Little Cottonwood River in Brown County, Minnesota. It was built in 2011, so it is 14 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 1,057 vehicles a day, roughly 34% of them trucks, projected to reach 1,300 by 2042. The structure is 106 ft (32.2 m) long and 43 ft wide. If it were closed, the detour would be 6.8 mi (11 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 | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Mn 4 over Little Cottonwood River built?
It was built in 2011, making it 14 years old in 2025.
What condition is Mn 4 over Little Cottonwood 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 September 2024.
How much traffic does Mn 4 over Little Cottonwood River carry?
About 1,057 vehicles per day (2022 count), of which roughly 34% are trucks.
How long is Mn 4 over Little Cottonwood River?
The structure is 106 ft (32.2 m) long with a longest span of 35 ft (10.7 m) and a deck 43 ft wide.
Who owns Mn 4 over Little Cottonwood River?
It is owned by the State Highway Agency.