SR 642 over W.B. Susquehanna River
GoodNorthumberland County, Pennsylvania · Milton/Island River Br. · Structure no. 000000000029116
- Built
- 1987
- 38 years old
- Condition
- Good
- inspected September 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 1,313 ft
- 9 main spans
- Daily traffic
- 10,757
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
SR 642 over W.B. Susquehanna River is a prestressed concrete continuous stringer/multi-beam or girder carrying SR 642 over W.B. Susquehanna River in Northumberland County, Pennsylvania. It was built in 1987, so it is 38 years old, younger than the Pennsylvania average of 54.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 10,757 vehicles a day, roughly 5% of them trucks, projected to reach 14,234 by 2032. The structure is 1,313 ft (400.2 m) long and 45 ft wide. If it were closed, the detour would be 11.2 mi (18 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SR 642 over W.B. Susquehanna River built?
It was built in 1987, making it 38 years old in 2025.
What condition is SR 642 over W.B. Susquehanna River in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2023.
How much traffic does SR 642 over W.B. Susquehanna River carry?
About 10,757 vehicles per day (2024 count), of which roughly 5% are trucks.
How long is SR 642 over W.B. Susquehanna River?
The structure is 1,313 ft (400.2 m) long with a longest span of 146 ft (44.5 m) and a deck 45 ft wide.
Who owns SR 642 over W.B. Susquehanna River?
It is owned by the State Highway Agency.