Shaw Road over Black River
GoodAlcona County, Michigan · 1.8 W & 0.3 S of Alcona · Structure no. 000000000000012
- Built
- 1994
- 31 years old
- Condition
- Good
- inspected May 2023
- Type
- Slab
- Wood or Timber
- Length
- 29 ft
- 1 main span
- Daily traffic
- 211
- 2003 count
- Owner
- County
- County Highway Agency
About this bridge
Shaw Road over Black River is a wood or timber slab carrying Shaw Road over Black River in Alcona County, Michigan. It was built in 1994, so it is 31 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 211 vehicles a day, roughly 20% of them trucks, projected to reach 290 by 2023. The structure is 29 ft (8.8 m) long and 34 ft wide. If it were closed, the detour would be 6.2 mi (10 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 | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Shaw Road over Black River built?
It was built in 1994, making it 31 years old in 2025.
What condition is Shaw Road over 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 May 2023.
How much traffic does Shaw Road over Black River carry?
About 211 vehicles per day (2003 count), of which roughly 20% are trucks.
How long is Shaw Road over Black River?
The structure is 29 ft (8.8 m) long with a longest span of 28 ft (8.5 m) and a deck 34 ft wide.
Who owns Shaw Road over Black River?
It is owned by the County Highway Agency.