Kennywood Blvd over Union RR Thompson Run
PoorAllegheny County, Pennsylvania · Union RR Yard · Structure no. 000000000001277
- Built
- 1928
- 97 years old, rebuilt 1983
- Condition
- Poor
- inspected September 2024
- Type
- Girder and Floorbeam System
- Steel
- Length
- 808 ft
- 8 main spans
- Daily traffic
- 22,325
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
Kennywood Blvd over Union RR Thompson Run is a steel girder and floorbeam system carrying Kennywood Blvd over Union RR Thompson Run in Allegheny County, Pennsylvania. It was built in 1928 and reconstructed in 1983, so it is 97 years old, older than the Pennsylvania average of 54.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 22,325 vehicles a day, roughly 4% of them trucks, projected to reach 22,093 by 2032. The structure is 808 ft (246.3 m) long and 58 ft wide. If it were closed, the detour would be 6.8 mi (11 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Kennywood Blvd over Union RR Thompson Run built?
It was built in 1928, making it 97 years old in 2025. It was reconstructed in 1983.
What condition is Kennywood Blvd over Union RR Thompson Run in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in September 2024.
How much traffic does Kennywood Blvd over Union RR Thompson Run carry?
About 22,325 vehicles per day (2024 count), of which roughly 4% are trucks.
How long is Kennywood Blvd over Union RR Thompson Run?
The structure is 808 ft (246.3 m) long with a longest span of 98 ft (29.9 m) and a deck 58 ft wide.
Who owns Kennywood Blvd over Union RR Thompson Run?
It is owned by the State Highway Agency.