Pa Tpk (I-76) over T-485 Slope Hill RD
FairWestmoreland County, Pennsylvania · East of Carpentertown · Structure no. 000000000036849
- Built
- 1939
- 86 years old, rebuilt 2003
- Condition
- Fair
- inspected June 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 57 ft
- 1 main span
- Daily traffic
- 34,232
- 2022 count
- Owner
- Toll Authority
- State Toll Authority
About this bridge
Pa Tpk (I-76) over T-485 Slope Hill RD is a prestressed concrete box beam or girders - multiple carrying Pa Tpk (I-76) over T-485 Slope Hill RD in Westmoreland County, Pennsylvania. It was built in 1939 and reconstructed in 2003, so it is 86 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 34,232 vehicles a day, roughly 32% of them trucks, projected to reach 42,113 by 2042. The structure is 57 ft (17.4 m) long and 91 ft wide. If it were closed, the detour would be 6.2 mi (10 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. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Pa Tpk (I-76) over T-485 Slope Hill RD built?
It was built in 1939, making it 86 years old in 2025. It was reconstructed in 2003.
What condition is Pa Tpk (I-76) over T-485 Slope Hill RD 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 June 2024.
How much traffic does Pa Tpk (I-76) over T-485 Slope Hill RD carry?
About 34,232 vehicles per day (2022 count), of which roughly 32% are trucks.
How long is Pa Tpk (I-76) over T-485 Slope Hill RD?
The structure is 57 ft (17.4 m) long with a longest span of 54 ft (16.5 m) and a deck 91 ft wide.
Who owns Pa Tpk (I-76) over T-485 Slope Hill RD?
It is owned by the State Toll Authority.