T-506 Kohlmeyer RD over Slippery Rock Creek
FairButler County, Pennsylvania · 0.9 MI S. of SR 4012 · Structure no. 000000000008290
- Built
- 1940
- 85 years old, rebuilt 2005
- Condition
- Fair
- inspected December 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 43 ft
- 1 main span
- Daily traffic
- 100
- 2018 count
- Owner
- County
- County Highway Agency
About this bridge
T-506 Kohlmeyer RD over Slippery Rock Creek is a steel stringer/multi-beam or girder carrying T-506 Kohlmeyer RD over Slippery Rock Creek in Butler County, Pennsylvania. It was built in 1940 and reconstructed in 2005, 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 6 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 140 by 2038. The structure is 43 ft (13.1 m) long and 17 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was T-506 Kohlmeyer RD over Slippery Rock Creek built?
It was built in 1940, making it 85 years old in 2025. It was reconstructed in 2005.
What condition is T-506 Kohlmeyer RD over Slippery Rock 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 December 2023.
How much traffic does T-506 Kohlmeyer RD over Slippery Rock Creek carry?
About 100 vehicles per day (2018 count), of which roughly 9% are trucks.
How long is T-506 Kohlmeyer RD over Slippery Rock Creek?
The structure is 43 ft (13.1 m) long with a longest span of 39 ft (11.9 m) and a deck 17 ft wide.
Who owns T-506 Kohlmeyer RD over Slippery Rock Creek?
It is owned by the County Highway Agency.