T-426 Coaltown RD over S Br Slippery Rock CR
FairButler County, Pennsylvania · 0.5 MI S. SR 4010 · Structure no. 000000000008175
- Built
- 1923
- 102 years old
- Condition
- Fair
- inspected September 2023
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 58 ft
- 2 main spans
- Daily traffic
- 100
- 2017 count
- Owner
- County
- County Highway Agency
About this bridge
T-426 Coaltown RD over S Br Slippery Rock CR is a steel continuous stringer/multi-beam or girder carrying T-426 Coaltown RD over S Br Slippery Rock CR in Butler County, Pennsylvania. It was built in 1923, so it is 102 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 120 by 2037. The structure is 58 ft (17.7 m) long and 22 ft wide. If it were closed, the detour would be 5 mi (8 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 | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was T-426 Coaltown RD over S Br Slippery Rock CR built?
It was built in 1923, making it 102 years old in 2025.
What condition is T-426 Coaltown RD over S 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 September 2023.
How much traffic does T-426 Coaltown RD over S Br Slippery Rock CR carry?
About 100 vehicles per day (2017 count), of which roughly 9% are trucks.
How long is T-426 Coaltown RD over S Br Slippery Rock CR?
The structure is 58 ft (17.7 m) long with a longest span of 27 ft (8.2 m) and a deck 22 ft wide.
Who owns T-426 Coaltown RD over S Br Slippery Rock CR?
It is owned by the County Highway Agency.