US-12 over Christiana Creek
FairCass County, Michigan · In Adamsville · Structure no. 000000000001432
- Built
- 1941
- 84 years old, rebuilt 1993
- Condition
- Fair
- inspected April 2023
- Type
- Box Beam or Girders - Single or Spread
- Prestressed Concrete
- Length
- 45 ft
- 1 main span
- Daily traffic
- 8,072
- 2007 count
- Owner
- State
- State Highway Agency
About this bridge
US-12 over Christiana Creek is a prestressed concrete box beam or girders - single or spread carrying US-12 over Christiana Creek in Cass County, Michigan. It was built in 1941 and reconstructed in 1993, so it is 84 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 8,072 vehicles a day, roughly 8% of them trucks, projected to reach 10,122 by 2018. The structure is 45 ft (13.7 m) long and 47 ft wide. If it were closed, the detour would be 3.7 mi (6 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 | 7 Good | Some minor problems. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 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 Christiana Creek built?
It was built in 1941, making it 84 years old in 2025. It was reconstructed in 1993.
What condition is US-12 over Christiana Creek 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-12 over Christiana Creek carry?
About 8,072 vehicles per day (2007 count), of which roughly 8% are trucks.
How long is US-12 over Christiana Creek?
The structure is 45 ft (13.7 m) long with a longest span of 44 ft (13.4 m) and a deck 47 ft wide.
Who owns US-12 over Christiana Creek?
It is owned by the State Highway Agency.