Ramp R over Union R R
Fair Condition52 years old3,419 vehicles/day
Location
| State | Pennsylvania |
| County | Allegheny |
| Location | Triboro Expressway |
| Carries | Ramp R |
| Crosses | Union R R |
| Coordinates | 40.39534, -79.83702 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 6 (Satisfactory) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 1157.2 ft (352.7 m) |
| Max Span | 124.0 ft (37.8 m) |
| Deck Width | 32.2 ft (9.8 m) |
| Deck Area | 3456.5 sq m |
| Main Spans | 11 |
| Year Built | 1974 (reconstructed 2010) |
Traffic
| Avg Daily Traffic | 3,419 (2024) |
| Truck Traffic | 4% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 823 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000001549 |