Mn 371 over Steamboat River
FairCass County, Minnesota · 7.8 MI S of JCT TH 2 · Structure no. 11004
- Built
- 1993
- 32 years old
- Condition
- Fair
- inspected April 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 88 ft
- 1 main span
- Daily traffic
- 2,885
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
Mn 371 over Steamboat River is a prestressed concrete stringer/multi-beam or girder carrying Mn 371 over Steamboat River in Cass County, Minnesota. It was built in 1993, so it is 32 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 2,885 vehicles a day, roughly 9% of them trucks, projected to reach 3,150 by 2041. The structure is 88 ft (26.7 m) long and 50 ft wide. If it were closed, the detour would be 39.1 mi (63 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 | 8 Very Good | No problems noted. |
| 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 371 over Steamboat River built?
It was built in 1993, making it 32 years old in 2025.
What condition is Mn 371 over Steamboat 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 April 2023.
How much traffic does Mn 371 over Steamboat River carry?
About 2,885 vehicles per day (2021 count), of which roughly 9% are trucks.
How long is Mn 371 over Steamboat River?
The structure is 88 ft (26.7 m) long with a longest span of 83 ft (25.3 m) and a deck 50 ft wide.
Who owns Mn 371 over Steamboat River?
It is owned by the State Highway Agency.