US-23|MACKINAW Ave over Little Black River
GoodCheboygan County, Michigan · In Cheboygan Mackinaw Av · Structure no. 000000000001494
- Built
- 2016
- 9 years old
- Condition
- Good
- inspected June 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 35 ft
- 1 main span
- Daily traffic
- 3,731
- 2013 count
- Owner
- State
- State Highway Agency
About this bridge
US-23|MACKINAW Ave over Little Black River is a prestressed concrete box beam or girders - multiple carrying US-23|MACKINAW Ave over Little Black River in Cheboygan County, Michigan. It was built in 2016, so it is 9 years old, younger 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 3,731 vehicles a day, roughly 4% of them trucks, projected to reach 4,250 by 2035. The structure is 35 ft (10.7 m) long and 58 ft wide. If it were closed, the detour would be 34.2 mi (55 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 | 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-23|MACKINAW Ave over Little Black River built?
It was built in 2016, making it 9 years old in 2025.
What condition is US-23|MACKINAW Ave over Little Black 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 June 2023.
How much traffic does US-23|MACKINAW Ave over Little Black River carry?
About 3,731 vehicles per day (2013 count), of which roughly 4% are trucks.
How long is US-23|MACKINAW Ave over Little Black River?
The structure is 35 ft (10.7 m) long with a longest span of 35 ft (10.6 m) and a deck 58 ft wide.
Who owns US-23|MACKINAW Ave over Little Black River?
It is owned by the State Highway Agency.