Mn 4 over Big Cottonwood River
GoodBrown County, Minnesota · 4.3 MI S of JCT TH 14 · Structure no. 08008
- Built
- 2024
- 1 years old
- Condition
- Good
- inspected December 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 231 ft
- 3 main spans
- Daily traffic
- 1,581
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
Mn 4 over Big Cottonwood River is a prestressed concrete stringer/multi-beam or girder carrying Mn 4 over Big Cottonwood River in Brown County, Minnesota. It was built in 2024, so it is 1 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 1,581 vehicles a day, roughly 4% of them trucks, projected to reach 2,300 by 2042. The structure is 231 ft (70.4 m) long and 43 ft wide. If it were closed, the detour would be 37.9 mi (61 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 4 over Big Cottonwood River built?
It was built in 2024, making it 1 years old in 2025.
What condition is Mn 4 over Big 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 December 2024.
How much traffic does Mn 4 over Big Cottonwood River carry?
About 1,581 vehicles per day (2022 count), of which roughly 4% are trucks.
How long is Mn 4 over Big Cottonwood River?
The structure is 231 ft (70.4 m) long with a longest span of 130 ft (39.5 m) and a deck 43 ft wide.
Who owns Mn 4 over Big Cottonwood River?
It is owned by the State Highway Agency.