Tarentum Bridge over NSRR (abdn) Allegheny R
FairAllegheny County, Pennsylvania · Tarentum Bridge · Structure no. 000000000001108
- Built
- 1949
- 76 years old, rebuilt 2012
- Condition
- Fair
- inspected August 2023
- Type
- Truss - Deck
- Steel Continuous
- Length
- 1,784 ft
- 4 main spans
- Daily traffic
- 36,878
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
Tarentum Bridge over NSRR (abdn) Allegheny R is a steel continuous truss - deck carrying Tarentum Bridge over NSRR (abdn) Allegheny R in Allegheny County, Pennsylvania. It was built in 1949 and reconstructed in 2012, so it is 76 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 36,878 vehicles a day, roughly 2% of them trucks, projected to reach 25,394 by 2032. The structure is 1,784 ft (543.8 m) long and 65 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 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 | 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. |
| 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 Tarentum Bridge over NSRR (abdn) Allegheny R built?
It was built in 1949, making it 76 years old in 2025. It was reconstructed in 2012.
What condition is Tarentum Bridge over NSRR (abdn) Allegheny R 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 August 2023.
How much traffic does Tarentum Bridge over NSRR (abdn) Allegheny R carry?
About 36,878 vehicles per day (2024 count), of which roughly 2% are trucks.
How long is Tarentum Bridge over NSRR (abdn) Allegheny R?
The structure is 1,784 ft (543.8 m) long with a longest span of 446 ft (135.9 m) and a deck 65 ft wide.
Who owns Tarentum Bridge over NSRR (abdn) Allegheny R?
It is owned by the State Highway Agency.