Garnsey ST over Great Miami River
FairMiami County, Ohio · Garnsey ST Piqua · Structure no. 5530741
- Built
- 1968
- 57 years old
- Condition
- Fair
- inspected February 2025
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 412 ft
- 4 main spans
- Daily traffic
- 7,242
- 2015 count
- Owner
- County
- County Highway Agency
About this bridge
Garnsey ST over Great Miami River is a steel continuous stringer/multi-beam or girder carrying Garnsey ST over Great Miami River in Miami County, Ohio. It was built in 1968, so it is 57 years old, older than the Ohio average of 47.3 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 7,242 vehicles a day, roughly 5% of them trucks, projected to reach 10,052 by 2038. The structure is 412 ft (125.6 m) long and 39 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Garnsey ST over Great Miami River built?
It was built in 1968, making it 57 years old in 2025.
What condition is Garnsey ST over Great Miami River 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 February 2025.
How much traffic does Garnsey ST over Great Miami River carry?
About 7,242 vehicles per day (2015 count), of which roughly 5% are trucks.
How long is Garnsey ST over Great Miami River?
The structure is 412 ft (125.6 m) long with a longest span of 119 ft (36.3 m) and a deck 39 ft wide.
Who owns Garnsey ST over Great Miami River?
It is owned by the County Highway Agency.