Pa 309 By-pass over Highland Avenue
Good Condition68 years old63,375 vehicles/day
Location
| State | Pennsylvania |
| County | Montgomery |
| Location | Upper Dublin 3257h07 |
| Carries | Pa 309 By-pass |
| Crosses | Highland Avenue |
| Coordinates | 40.14824, -75.20413 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 149.9 ft (45.7 m) |
| Max Span | 74.1 ft (22.6 m) |
| Deck Width | 92.5 ft (28.2 m) |
| Deck Area | 1288.7 sq m |
| Main Spans | 3 |
| Year Built | 1958 (reconstructed 2006) |
Traffic
| Avg Daily Traffic | 63,375 (2024) |
| Truck Traffic | 3% |
| Lanes On Bridge | 2 |
| Lanes Under Bridge | 2 |
Inspection & Ownership
| Last Inspection | 822 |
| Inspection Frequency | Every 48 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000027383 |