US-41 over Sturgeon River
FairHoughton County, Michigan · 1.8 MI SE of Chassel · Structure no. 000000000003403
- Built
- 1960
- 65 years old
- Condition
- Fair
- inspected July 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 239 ft
- 4 main spans
- Daily traffic
- 3,883
- 2007 count
- Owner
- State
- State Highway Agency
About this bridge
US-41 over Sturgeon River is a steel stringer/multi-beam or girder carrying US-41 over Sturgeon River in Houghton County, Michigan. It was built in 1960, so it is 65 years old, older than the Michigan average of 48.3 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 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 3,883 vehicles a day, roughly 10% of them trucks, projected to reach 4,337 by 2018. The structure is 239 ft (72.8 m) long and 37 ft wide. If it were closed, the detour would be 62.1 mi (100 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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 US-41 over Sturgeon River built?
It was built in 1960, making it 65 years old in 2025.
What condition is US-41 over Sturgeon 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 July 2023.
How much traffic does US-41 over Sturgeon River carry?
About 3,883 vehicles per day (2007 count), of which roughly 10% are trucks.
How long is US-41 over Sturgeon River?
The structure is 239 ft (72.8 m) long with a longest span of 59 ft (18 m) and a deck 37 ft wide.
Who owns US-41 over Sturgeon River?
It is owned by the State Highway Agency.