SR 309 Bypass over Loch Alsh Avenue
Good Condition68 years old63,375 vehicles/day
Location
| State | Pennsylvania |
| County | Montgomery |
| Location | Upper Dublin 3257h06 |
| Carries | SR 309 Bypass |
| Crosses | Loch Alsh Avenue |
| Coordinates | 40.15342, -75.20188 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 8 (Very Good) |
| Substructure | 7 (Good) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 140.1 ft (42.7 m) |
| Max Span | 68.9 ft (21 m) |
| Deck Width | 92.8 ft (28.3 m) |
| Deck Area | 1208.4 sq m |
| Main Spans | 3 |
| Year Built | 1958 (reconstructed 2010) |
Traffic
| Avg Daily Traffic | 63,375 (2024) |
| Truck Traffic | 3% |
| Lanes On Bridge | 2 |
| Lanes Under Bridge | 2 |
Inspection & Ownership
| Last Inspection | 724 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000027384 |