T520 Thirteen Hill over W.br.susquehanna River
Poor Condition111 years old540 vehicles/day
Location
| State | Pennsylvania |
| County | Cambria |
| Location | .3 Mi.sw.of Watkins |
| Carries | T520 Thirteen Hill |
| Crosses | W.br.susquehanna River |
| Coordinates | 40.61910, -78.76327 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 4 (Poor) |
| Superstructure | 4 (Poor) |
| Substructure | 4 (Poor) |
| Channel/Waterway | 4 (Poor) |
| Scour Critical | 3 — Scour critical |
Physical Characteristics
| Material | Concrete |
| Design | Slab |
| Total Length | 27.9 ft (8.5 m) |
| Max Span | 24.0 ft (7.3 m) |
| Deck Width | 26.2 ft (8 m) |
| Deck Area | 68 sq m |
| Main Spans | 1 |
| Year Built | 1915 |
Traffic
| Avg Daily Traffic | 540 (2024) |
| Truck Traffic | 65% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 324 |
| Inspection Frequency | Every 24 months |
| Owner | Town/Township Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000008731 |