Pa309 (lr153) over Tumble Brook
Fair Condition56 years old34,519 vehicles/day
Location
| State | Pennsylvania |
| County | Lehigh |
| Location | 0.4 Mi.s.of SR 2028 |
| Carries | Pa309 (lr153) |
| Crosses | Tumble Brook |
| Coordinates | 40.51843, -75.38596 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 5 (Fair) |
| Channel/Waterway | 4 (Poor) |
| Scour Critical | 4 — Foundations need monitoring |
Physical Characteristics
| Material | Concrete |
| Design | Slab |
| Total Length | 25.9 ft (7.9 m) |
| Max Span | 24.9 ft (7.6 m) |
| Deck Width | 76.1 ft (23.2 m) |
| Deck Area | 183.3 sq m |
| Main Spans | 1 |
| Year Built | 1970 (reconstructed 1987) |
Traffic
| Avg Daily Traffic | 34,519 (2024) |
| Truck Traffic | 10% |
| Lanes On Bridge | 4 |
Inspection & Ownership
| Last Inspection | December 2023 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000023145 |