Backbone RD over Little Sewickley Creek
Fair Condition106 years old200 vehicles/day
Location
| State | Pennsylvania |
| County | Allegheny |
| Location | Sl02 Little Sew Crk # 2 |
| Carries | Backbone RD |
| Crosses | Little Sewickley Creek |
| Coordinates | 40.56702, -80.17281 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 8 (Very Good) |
| Superstructure | 7 (Good) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 5 (Fair) |
| Scour Critical | 7 — Countermeasures installed |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Box Beam - Multiple |
| Total Length | 42.0 ft (12.8 m) |
| Max Span | 40.0 ft (12.2 m) |
| Deck Width | 23.0 ft (7 m) |
| Deck Area | 89.6 sq m |
| Main Spans | 1 |
| Year Built | 1920 (reconstructed 2019) |
Traffic
| Avg Daily Traffic | 200 (2023) |
| Truck Traffic | 6% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 823 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000002670 |