M 12 over Redwood River
GoodLyon County, Minnesota · 0.2 MI N of JCT Csah 5 · Structure no. 42556
- Built
- 2002
- 23 years old
- Condition
- Good
- inspected October 2023
- Type
- Slab
- Concrete Continuous
- Length
- 107 ft
- 3 main spans
- Daily traffic
- 20
- 2002 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
M 12 over Redwood River is a concrete continuous slab carrying M 12 over Redwood River in Lyon County, Minnesota. It was built in 2002, so it is 23 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 20 vehicles a day, projected to reach 20 by 2029. The structure is 107 ft (32.5 m) long and 31 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was M 12 over Redwood River built?
It was built in 2002, making it 23 years old in 2025.
What condition is M 12 over Redwood 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 October 2023.
How much traffic does M 12 over Redwood River carry?
About 20 vehicles per day (2002 count).
How long is M 12 over Redwood River?
The structure is 107 ft (32.5 m) long with a longest span of 40 ft (12.2 m) and a deck 31 ft wide.
Who owns M 12 over Redwood River?
It is owned by the City or Municipal Highway Agency.