US-45 over Br Ontonagon River
FairGogebic County, Michigan · 0.5 MI N of Watersmeet · Structure no. 000000000002973
- Built
- 1953
- 72 years old
- Condition
- Fair
- inspected May 2024
- Type
- Tee Beam
- Concrete
- Length
- 39 ft
- 1 main span
- Daily traffic
- 3,202
- 2007 count
- Owner
- State
- State Highway Agency
About this bridge
US-45 over Br Ontonagon River is a concrete tee beam carrying US-45 over Br Ontonagon River in Gogebic County, Michigan. It was built in 1953, so it is 72 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 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 3,202 vehicles a day, roughly 4% of them trucks, projected to reach 4,085 by 2018. The structure is 39 ft (11.9 m) long and 43 ft wide. If it were closed, the detour would be 3.7 mi (6 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US-45 over Br Ontonagon River built?
It was built in 1953, making it 72 years old in 2025.
What condition is US-45 over Br Ontonagon 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 May 2024.
How much traffic does US-45 over Br Ontonagon River carry?
About 3,202 vehicles per day (2007 count), of which roughly 4% are trucks.
How long is US-45 over Br Ontonagon River?
The structure is 39 ft (11.9 m) long with a longest span of 38 ft (11.7 m) and a deck 43 ft wide.
Who owns US-45 over Br Ontonagon River?
It is owned by the State Highway Agency.