Liberty Bridge over Mon R I376 0837 2 Av Arl
Fair Condition98 years old42,292 vehicles/day
Location
| State | Pennsylvania |
| County | Allegheny |
| Location | Liberty Bridge |
| Carries | Liberty Bridge |
| Crosses | Mon R I376 0837 2 Av Arl |
| Coordinates | 40.43299, -79.99663 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 5 (Fair) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 5 (Fair) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Steel Continuous |
| Design | Truss - Deck |
| Total Length | 2663.1 ft (811.7 m) |
| Max Span | 470.1 ft (143.3 m) |
| Deck Width | 49.2 ft (15 m) |
| Deck Area | 12175.5 sq m |
| Main Spans | 15 |
| Year Built | 1928 (reconstructed 2017) |
Traffic
| Avg Daily Traffic | 42,292 (2023) |
| Truck Traffic | 6% |
| Lanes On Bridge | 4 |
| Lanes Under Bridge | 75 |
Inspection & Ownership
| Last Inspection | 423 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is on the National Register of Historic Places |
| Structure Number | 000000000001808 |