US-12 over Conrail Service Road
FairWashtenaw County, Michigan · 0.9 MI W of Wayne CO Line · Structure no. 000000000010845
- Built
- 1944
- 81 years old, rebuilt 1995
- Condition
- Fair
- inspected July 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 139 ft
- 3 main spans
- Daily traffic
- 11,500
- 2007 count
- Owner
- State
- State Highway Agency
About this bridge
US-12 over Conrail Service Road is a prestressed concrete box beam or girders - multiple carrying US-12 over Conrail Service Road in Washtenaw County, Michigan. It was built in 1944 and reconstructed in 1995, so it is 81 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 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 11,500 vehicles a day, roughly 5% of them trucks, projected to reach 15,734 by 2018. The structure is 139 ft (42.3 m) long and 74 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 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-12 over Conrail Service Road built?
It was built in 1944, making it 81 years old in 2025. It was reconstructed in 1995.
What condition is US-12 over Conrail Service Road 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 July 2024.
How much traffic does US-12 over Conrail Service Road carry?
About 11,500 vehicles per day (2007 count), of which roughly 5% are trucks.
How long is US-12 over Conrail Service Road?
The structure is 139 ft (42.3 m) long with a longest span of 56 ft (17 m) and a deck 74 ft wide.
Who owns US-12 over Conrail Service Road?
It is owned by the State Highway Agency.