US-24 over Ann Arbor RR
FairMonroe County, Michigan · 0.8 MI N Ohio State Line · Structure no. 000000000007121
- Built
- 1938
- 87 years old, rebuilt 1992
- Condition
- Fair
- inspected August 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 106 ft
- 3 main spans
- Daily traffic
- 11,702
- 2007 count
- Owner
- State
- State Highway Agency
About this bridge
US-24 over Ann Arbor RR is a prestressed concrete box beam or girders - multiple carrying US-24 over Ann Arbor RR in Monroe County, Michigan. It was built in 1938 and reconstructed in 1992, so it is 87 years old, older 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 11,702 vehicles a day, roughly 3% of them trucks, projected to reach 11,138 by 2018. The structure is 106 ft (32.3 m) long and 51 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US-24 over Ann Arbor RR built?
It was built in 1938, making it 87 years old in 2025. It was reconstructed in 1992.
What condition is US-24 over Ann Arbor RR 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 August 2023.
How much traffic does US-24 over Ann Arbor RR carry?
About 11,702 vehicles per day (2007 count), of which roughly 3% are trucks.
How long is US-24 over Ann Arbor RR?
The structure is 106 ft (32.3 m) long with a longest span of 35 ft (10.6 m) and a deck 51 ft wide.
Who owns US-24 over Ann Arbor RR?
It is owned by the State Highway Agency.