William Penn HWY over Lr 744 Union RR Thompson
FairAllegheny County, Pennsylvania · Hall Station Bridge · Structure no. 000000000001575
- Built
- 1942
- 83 years old, rebuilt 1989
- Condition
- Fair
- inspected July 2023
- Type
- Truss - Deck
- Steel Continuous
- Length
- 1,252 ft
- 4 main spans
- Daily traffic
- 22,920
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
William Penn HWY over Lr 744 Union RR Thompson is a steel continuous truss - deck carrying William Penn HWY over Lr 744 Union RR Thompson in Allegheny County, Pennsylvania. It was built in 1942 and reconstructed in 1989, so it is 83 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 22,920 vehicles a day, roughly 2% of them trucks, projected to reach 36,265 by 2032. The structure is 1,252 ft (381.6 m) long and 67 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 | 7 Good | Some minor problems. |
| 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was William Penn HWY over Lr 744 Union RR Thompson built?
It was built in 1942, making it 83 years old in 2025. It was reconstructed in 1989.
What condition is William Penn HWY over Lr 744 Union RR Thompson 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 July 2023.
How much traffic does William Penn HWY over Lr 744 Union RR Thompson carry?
About 22,920 vehicles per day (2024 count), of which roughly 2% are trucks.
How long is William Penn HWY over Lr 744 Union RR Thompson?
The structure is 1,252 ft (381.6 m) long with a longest span of 400 ft (121.9 m) and a deck 67 ft wide.
Who owns William Penn HWY over Lr 744 Union RR Thompson?
It is owned by the State Highway Agency.