US-2 over Black River
PoorMackinac County, Michigan · 11.5 MI E of M-117 · Structure no. 000000000005930
- Built
- 1939
- 86 years old
- Condition
- Poor
- inspected June 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 55 ft
- 1 main span
- Daily traffic
- 3,586
- 2007 count
- Owner
- State
- State Highway Agency
About this bridge
US-2 over Black River is a steel stringer/multi-beam or girder carrying US-2 over Black River in Mackinac County, Michigan. It was built in 1939, 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 3,586 vehicles a day, roughly 14% of them trucks, projected to reach 6,083 by 2018. The structure is 55 ft (16.8 m) long and 41 ft wide. If it were closed, the detour would be 19.9 mi (32 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Superstructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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-2 over Black River built?
It was built in 1939, making it 86 years old in 2025.
What condition is US-2 over Black River in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in June 2024.
How much traffic does US-2 over Black River carry?
About 3,586 vehicles per day (2007 count), of which roughly 14% are trucks.
How long is US-2 over Black River?
The structure is 55 ft (16.8 m) long with a longest span of 55 ft (16.7 m) and a deck 41 ft wide.
Who owns US-2 over Black River?
It is owned by the State Highway Agency.