Mary ST over Plum Creek
Fair Condition96 years old150 vehicles/day
Location
| State | Pennsylvania |
| County | Allegheny |
| Location | 466102 Mary St-plum Boro |
| Carries | Mary ST |
| Crosses | Plum Creek |
| Coordinates | 40.49782, -79.78894 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 5 (Fair) |
| Scour Critical | 4 — Foundations need monitoring |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 36.1 ft (11 m) |
| Max Span | 35.1 ft (10.7 m) |
| Deck Width | 21.0 ft (6.4 m) |
| Deck Area | 70.4 sq m |
| Main Spans | 1 |
| Year Built | 1930 (reconstructed 2004) |
Traffic
| Avg Daily Traffic | 150 (2017) |
| Truck Traffic | 5% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 724 |
| Inspection Frequency | Every 24 months |
| Owner | City/Municipal Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000002690 |