T-557 Ohara Road over Thorn Creek
FairButler County, Pennsylvania · 190 Ft NW of SR 2007 · Structure no. 000000000008240
- Built
- 1920
- 105 years old, rebuilt 1990
- Condition
- Fair
- inspected May 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 40 ft
- 1 main span
- Daily traffic
- 100
- 2017 count
- Owner
- County
- County Highway Agency
About this bridge
T-557 Ohara Road over Thorn Creek is a steel stringer/multi-beam or girder carrying T-557 Ohara Road over Thorn Creek in Butler County, Pennsylvania. It was built in 1920 and reconstructed in 1990, so it is 105 years old, older than the Pennsylvania average of 54.8 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 100 vehicles a day, roughly 9% of them trucks, projected to reach 125 by 2037. The structure is 40 ft (12.2 m) long and 18 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 | 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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 T-557 Ohara Road over Thorn Creek built?
It was built in 1920, making it 105 years old in 2025. It was reconstructed in 1990.
What condition is T-557 Ohara Road over Thorn 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 May 2023.
How much traffic does T-557 Ohara Road over Thorn Creek carry?
About 100 vehicles per day (2017 count), of which roughly 9% are trucks.
How long is T-557 Ohara Road over Thorn Creek?
The structure is 40 ft (12.2 m) long with a longest span of 39 ft (11.9 m) and a deck 18 ft wide.
Who owns T-557 Ohara Road over Thorn Creek?
It is owned by the County Highway Agency.