SR 642 over W.b. Susquehanna River
Good Condition39 years old10,757 vehicles/day
Location
| State | Pennsylvania |
| County | Northumberland |
| Location | Milton/island River Br. |
| Carries | SR 642 |
| Crosses | W.b. Susquehanna River |
| Coordinates | 41.01710, -76.85946 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 5 (Fair) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Prestressed Concrete Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 1313.0 ft (400.2 m) |
| Max Span | 146.0 ft (44.5 m) |
| Deck Width | 44.9 ft (13.7 m) |
| Deck Area | 5482.7 sq m |
| Main Spans | 9 |
| Year Built | 1987 |
Traffic
| Avg Daily Traffic | 10,757 (2024) |
| Truck Traffic | 5% |
| Lanes On Bridge | 2 |
| Lanes Under Bridge | 2 |
Inspection & Ownership
| Last Inspection | 923 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000029116 |