US-31 over Commercial ST
FairBenzie County, Michigan · N Lts of Benzonia · Structure no. 000000000000760
- Built
- 2000
- 25 years old
- Condition
- Fair
- inspected April 2023
- Type
- Arch - Deck
- Concrete
- Length
- 150 ft
- 3 main spans
- Daily traffic
- 9,566
- 2007 count
- Owner
- State
- State Highway Agency
About this bridge
US-31 over Commercial ST is a concrete arch - deck carrying US-31 over Commercial ST in Benzie County, Michigan. It was built in 2000, so it is 25 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 5 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 9,566 vehicles a day, roughly 4% of them trucks, projected to reach 12,869 by 2018. The structure is 150 ft (45.7 m) long and 48 ft wide. If it were closed, the detour would be 8.1 mi (13 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 |
|---|---|---|
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 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-31 over Commercial ST built?
It was built in 2000, making it 25 years old in 2025.
What condition is US-31 over Commercial ST 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 April 2023.
How much traffic does US-31 over Commercial ST carry?
About 9,566 vehicles per day (2007 count), of which roughly 4% are trucks.
How long is US-31 over Commercial ST?
The structure is 150 ft (45.7 m) long with a longest span of 50 ft (15.2 m) and a deck 48 ft wide.
Who owns US-31 over Commercial ST?
It is owned by the State Highway Agency.