US-23 over Swan River
GoodPresque Isle County, Michigan · 1.8 MI NW of M-65 · Structure no. 000000000008963
- Built
- 1939
- 86 years old, rebuilt 2020
- Condition
- Good
- inspected May 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 44 ft
- 1 main span
- Daily traffic
- 3,242
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
US-23 over Swan River is a prestressed concrete stringer/multi-beam or girder carrying US-23 over Swan River in Presque Isle County, Michigan. It was built in 1939 and reconstructed in 2020, so it is 86 years old, older than the Michigan average of 48.3 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 3,242 vehicles a day, roughly 5% of them trucks. The structure is 44 ft (13.4 m) long and 47 ft wide. If it were closed, the detour would be 19.3 mi (31 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 | 7 Good | Some minor problems. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US-23 over Swan River built?
It was built in 1939, making it 86 years old in 2025. It was reconstructed in 2020.
What condition is US-23 over Swan 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 May 2023.
How much traffic does US-23 over Swan River carry?
About 3,242 vehicles per day (2022 count), of which roughly 5% are trucks.
How long is US-23 over Swan River?
The structure is 44 ft (13.4 m) long with a longest span of 43 ft (13 m) and a deck 47 ft wide.
Who owns US-23 over Swan River?
It is owned by the State Highway Agency.