T-473 Ray Road over N Br Slippery Rock CR
FairPosted for loadButler County, Pennsylvania · 500 Ft from Int W/T-476 · Structure no. 000000000008256
- Built
- 1940
- 85 years old, rebuilt 1983
- Condition
- Fair
- inspected August 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 36 ft
- 1 main span
- Daily traffic
- 50
- 2017 count
- Owner
- Town / Township
- Town or Township Highway Agency
About this bridge
T-473 Ray Road over N Br Slippery Rock CR is a steel stringer/multi-beam or girder carrying T-473 Ray Road over N Br Slippery Rock CR in Butler County, Pennsylvania. It was built in 1940 and reconstructed in 1983, so it is 85 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. Its operating status is: posted for load restriction.
It carries about 50 vehicles a day, roughly 9% of them trucks, projected to reach 75 by 2037. The structure is 36 ft (11 m) long and 14 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 | 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 | 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-473 Ray Road over N Br Slippery Rock CR built?
It was built in 1940, making it 85 years old in 2025. It was reconstructed in 1983.
What condition is T-473 Ray Road over N Br Slippery Rock CR 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 August 2023.
How much traffic does T-473 Ray Road over N Br Slippery Rock CR carry?
About 50 vehicles per day (2017 count), of which roughly 9% are trucks.
How long is T-473 Ray Road over N Br Slippery Rock CR?
The structure is 36 ft (11 m) long with a longest span of 34 ft (10.4 m) and a deck 14 ft wide.
Who owns T-473 Ray Road over N Br Slippery Rock CR?
It is owned by the Town or Township Highway Agency.