31st Street Bridge over Alleg.Riv. Rrs Locals
FairAllegheny County, Pennsylvania · 31st Street Bridge · Structure no. 000000000001672
- Built
- 1928
- 97 years old, rebuilt 2013
- Condition
- Fair
- inspected June 2023
- Type
- Arch - Deck
- Steel
- Length
- 2,729 ft
- 3 main spans
- Daily traffic
- 9,812
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
31st Street Bridge over Alleg.Riv. Rrs Locals is a steel arch - deck carrying 31st Street Bridge over Alleg.Riv. Rrs Locals in Allegheny County, Pennsylvania. It was built in 1928 and reconstructed in 2013, 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 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 9,812 vehicles a day, roughly 11% of them trucks, projected to reach 7,840 by 2032. The structure is 2,729 ft (831.8 m) long and 44 ft wide. If it were closed, the detour would be 3.1 mi (5 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 31st Street Bridge over Alleg.Riv. Rrs Locals built?
It was built in 1928, making it 97 years old in 2025. It was reconstructed in 2013.
What condition is 31st Street Bridge over Alleg.Riv. Rrs Locals 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 2023.
How much traffic does 31st Street Bridge over Alleg.Riv. Rrs Locals carry?
About 9,812 vehicles per day (2024 count), of which roughly 11% are trucks.
How long is 31st Street Bridge over Alleg.Riv. Rrs Locals?
The structure is 2,729 ft (831.8 m) long with a longest span of 380 ft (115.8 m) and a deck 44 ft wide.
Who owns 31st Street Bridge over Alleg.Riv. Rrs Locals?
It is owned by the State Highway Agency.