Seventh Street Br over Allegh Riv 10 ST By-Pass
FairAllegheny County, Pennsylvania · AL03 7th ST Bridge · Structure no. 000000000002382
- Built
- 1926
- 99 years old, rebuilt 2017
- Condition
- Fair
- inspected May 2023
- Type
- Suspension
- Steel Continuous
- Length
- 1,061 ft
- 3 main spans
- Daily traffic
- 9,900
- 2017 count
- Owner
- County
- County Highway Agency
About this bridge
Seventh Street Br over Allegh Riv 10 ST By-Pass is a steel continuous suspension carrying Seventh Street Br over Allegh Riv 10 ST By-Pass in Allegheny County, Pennsylvania. It was built in 1926 and reconstructed in 2017, so it is 99 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 9,900 vehicles a day, roughly 5% of them trucks, projected to reach 11,680 by 2037. The structure is 1,061 ft (323.4 m) long and 37 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 Seventh Street Br over Allegh Riv 10 ST By-Pass built?
It was built in 1926, making it 99 years old in 2025. It was reconstructed in 2017.
What condition is Seventh Street Br over Allegh Riv 10 ST By-Pass 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 May 2023.
How much traffic does Seventh Street Br over Allegh Riv 10 ST By-Pass carry?
About 9,900 vehicles per day (2017 count), of which roughly 5% are trucks.
How long is Seventh Street Br over Allegh Riv 10 ST By-Pass?
The structure is 1,061 ft (323.4 m) long with a longest span of 442 ft (134.7 m) and a deck 37 ft wide.
Who owns Seventh Street Br over Allegh Riv 10 ST By-Pass?
It is owned by the County Highway Agency.