S Branch RD over S Br of Au Sable River
FairIosco County, Michigan · 1.5 MI N of Long Lake · Structure no. 000000000004143
- Built
- 1979
- 46 years old
- Condition
- Fair
- inspected June 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 54 ft
- 1 main span
- Daily traffic
- 1,100
- 2006 count
- Owner
- County
- County Highway Agency
About this bridge
S Branch RD over S Br of Au Sable River is a prestressed concrete box beam or girders - multiple carrying S Branch RD over S Br of Au Sable River in Iosco County, Michigan. It was built in 1979, so it is 46 years old, younger than the Michigan average of 48.3 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 1,100 vehicles a day, roughly 10% of them trucks, projected to reach 1,980 by 2026. The structure is 54 ft (16.4 m) long and 37 ft wide. If it were closed, the detour would be 3.1 mi (5 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 S Branch RD over S Br of Au Sable River built?
It was built in 1979, making it 46 years old in 2025.
What condition is S Branch RD over S Br of Au Sable River in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in June 2023.
How much traffic does S Branch RD over S Br of Au Sable River carry?
About 1,100 vehicles per day (2006 count), of which roughly 10% are trucks.
How long is S Branch RD over S Br of Au Sable River?
The structure is 54 ft (16.4 m) long with a longest span of 50 ft (15.2 m) and a deck 37 ft wide.
Who owns S Branch RD over S Br of Au Sable River?
It is owned by the County Highway Agency.