Ramp S over Ns Rr Union Rr Main ST
Fair Condition52 years old7,111 vehicles/day
Location
| State | Pennsylvania |
| County | Allegheny |
| Location | Triboro Expressway |
| Carries | Ramp S |
| Crosses | Ns Rr Union Rr Main ST |
| Coordinates | 40.39667, -79.83833 |
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 | 1191.9 ft (363.3 m) |
| Max Span | 162.1 ft (49.4 m) |
| Deck Width | 64.0 ft (19.5 m) |
| Deck Area | 7084.4 sq m |
| Main Spans | 8 |
| Year Built | 1974 (reconstructed 2010) |
Traffic
| Avg Daily Traffic | 7,111 (2024) |
| Truck Traffic | 9% |
| Lanes On Bridge | 4 |
| Lanes Under 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 | 000000000001635 |