Aao Road over Big Dead River
GoodMarquette County, Michigan · 0.05 MI W of Aat Road · Structure no. 000000000006566
- Built
- 2003
- 22 years old
- Condition
- Good
- inspected October 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 107 ft
- 1 main span
- Daily traffic
- 80
- 2002 count
- Owner
- County
- County Highway Agency
About this bridge
Aao Road over Big Dead River is a prestressed concrete box beam or girders - multiple carrying Aao Road over Big Dead River in Marquette County, Michigan. It was built in 2003, so it is 22 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 80 vehicles a day, roughly 10% of them trucks, projected to reach 100 by 2022. The structure is 107 ft (32.6 m) long and 31 ft wide. If it were closed, the detour would be 51 mi (82 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 Aao Road over Big Dead River built?
It was built in 2003, making it 22 years old in 2025.
What condition is Aao Road over Big Dead 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 October 2023.
How much traffic does Aao Road over Big Dead River carry?
About 80 vehicles per day (2002 count), of which roughly 10% are trucks.
How long is Aao Road over Big Dead River?
The structure is 107 ft (32.6 m) long with a longest span of 102 ft (31.1 m) and a deck 31 ft wide.
Who owns Aao Road over Big Dead River?
It is owned by the County Highway Agency.