Mcknight RD over Perry Highway-Us 19
GoodAllegheny County, Pennsylvania · 200 North of SR 4086 · Structure no. 000000000001916
- Built
- 1953
- 72 years old, rebuilt 2016
- Condition
- Good
- inspected April 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 109 ft
- 1 main span
- Daily traffic
- 10,653
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
Mcknight RD over Perry Highway-Us 19 is a steel stringer/multi-beam or girder carrying Mcknight RD over Perry Highway-Us 19 in Allegheny County, Pennsylvania. It was built in 1953 and reconstructed in 2016, so it is 72 years old, older than the Pennsylvania average of 54.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 10,653 vehicles a day, roughly 2% of them trucks, projected to reach 12,023 by 2032. The structure is 109 ft (33.2 m) long and 44 ft wide. If it were closed, the detour would be 3.7 mi (6 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Mcknight RD over Perry Highway-Us 19 built?
It was built in 1953, making it 72 years old in 2025. It was reconstructed in 2016.
What condition is Mcknight RD over Perry Highway-Us 19 in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2023.
How much traffic does Mcknight RD over Perry Highway-Us 19 carry?
About 10,653 vehicles per day (2024 count), of which roughly 2% are trucks.
How long is Mcknight RD over Perry Highway-Us 19?
The structure is 109 ft (33.2 m) long with a longest span of 100 ft (30.5 m) and a deck 44 ft wide.
Who owns Mcknight RD over Perry Highway-Us 19?
It is owned by the State Highway Agency.