Grafton Road over Swan Creek
FairMonroe County, Michigan · 6.5 MI N of US 24 · Structure no. 000000000007298
- Built
- 1926
- 99 years old, rebuilt 1980
- Condition
- Fair
- inspected June 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 45 ft
- 1 main span
- Daily traffic
- 3,030
- 2017 count
- Owner
- County
- County Highway Agency
About this bridge
Grafton Road over Swan Creek is a prestressed concrete box beam or girders - multiple carrying Grafton Road over Swan Creek in Monroe County, Michigan. It was built in 1926 and reconstructed in 1980, so it is 99 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 3,030 vehicles a day, roughly 2% of them trucks, projected to reach 3,484 by 2037. The structure is 45 ft (13.7 m) long and 39 ft wide. If it were closed, the detour would be 11.8 mi (19 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Grafton Road over Swan Creek built?
It was built in 1926, making it 99 years old in 2025. It was reconstructed in 1980.
What condition is Grafton Road over Swan 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 June 2024.
How much traffic does Grafton Road over Swan Creek carry?
About 3,030 vehicles per day (2017 count), of which roughly 2% are trucks.
How long is Grafton Road over Swan Creek?
The structure is 45 ft (13.7 m) long with a longest span of 43 ft (13.1 m) and a deck 39 ft wide.
Who owns Grafton Road over Swan Creek?
It is owned by the County Highway Agency.