Mn 4 over Watonwan River
GoodWatonwan County, Minnesota · 7.2 MI N of ST James · Structure no. 83039
- Built
- 2012
- 13 years old
- Condition
- Good
- inspected September 2024
- Type
- Slab
- Concrete Continuous
- Length
- 123 ft
- 3 main spans
- Daily traffic
- 893
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
Mn 4 over Watonwan River is a concrete continuous slab carrying Mn 4 over Watonwan River in Watonwan County, Minnesota. It was built in 2012, so it is 13 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 893 vehicles a day, roughly 19% of them trucks, projected to reach 1,200 by 2041. The structure is 123 ft (37.4 m) long and 51 ft wide. If it were closed, the detour would be 9.9 mi (16 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Mn 4 over Watonwan River built?
It was built in 2012, making it 13 years old in 2025.
What condition is Mn 4 over Watonwan 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 Watonwan River carry?
About 893 vehicles per day (2021 count), of which roughly 19% are trucks.
How long is Mn 4 over Watonwan River?
The structure is 123 ft (37.4 m) long with a longest span of 46 ft (14 m) and a deck 51 ft wide.
Who owns Mn 4 over Watonwan River?
It is owned by the State Highway Agency.