T-556 Great Belt over Trib To Thorn Creek
Poor Condition69 years old200 vehicles/day
Location
| State | Pennsylvania |
| County | Butler |
| Location | 0.45 Mi NE Of SR 2010 |
| Carries | T-556 Great Belt |
| Crosses | Trib To Thorn Creek |
| Coordinates | 40.78049, -79.82930 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 4 (Poor) |
| Superstructure | 4 (Poor) |
| Substructure | 5 (Fair) |
| Channel/Waterway | 4 (Poor) |
| Scour Critical | 3 — Scour critical |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 29.9 ft (9.1 m) |
| Max Span | 27.9 ft (8.5 m) |
| Deck Width | 32.2 ft (9.8 m) |
| Deck Area | 89.2 sq m |
| Main Spans | 1 |
| Year Built | 1957 |
Traffic
| Avg Daily Traffic | 200 (2017) |
| Truck Traffic | 9% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 523 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000008239 |