Mn 40 over Chippewa River
FairChippewa County, Minnesota · 5.6 MI E of Milan · Structure no. 12011
- Built
- 1987
- 38 years old
- Condition
- Fair
- inspected September 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 190 ft
- 2 main spans
- Daily traffic
- 631
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
Mn 40 over Chippewa River is a prestressed concrete stringer/multi-beam or girder carrying Mn 40 over Chippewa River in Chippewa County, Minnesota. It was built in 1987, so it is 38 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 631 vehicles a day, roughly 11% of them trucks, projected to reach 820 by 2041. The structure is 190 ft (57.9 m) long and 46 ft wide. If it were closed, the detour would be 18 mi (29 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 | 7 Good | Some minor problems. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Mn 40 over Chippewa River built?
It was built in 1987, making it 38 years old in 2025.
What condition is Mn 40 over Chippewa 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 September 2024.
How much traffic does Mn 40 over Chippewa River carry?
About 631 vehicles per day (2021 count), of which roughly 11% are trucks.
How long is Mn 40 over Chippewa River?
The structure is 190 ft (57.9 m) long with a longest span of 93 ft (28.2 m) and a deck 46 ft wide.
Who owns Mn 40 over Chippewa River?
It is owned by the State Highway Agency.