I-78 WB over Washing Valley RD(CR620)
PoorSomerset County, New Jersey · 1.1 MI East of I-287 JCT · Structure no. 1817158
- Built
- 1965
- 60 years old
- Condition
- Poor
- inspected July 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 207 ft
- 3 main spans
- Daily traffic
- 42,420
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
I-78 WB over Washing Valley RD(CR620) is a prestressed concrete stringer/multi-beam or girder carrying I-78 WB over Washing Valley RD(CR620) in Somerset County, New Jersey. It was built in 1965, so it is 60 years old, older than the New Jersey average of 58.5 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 42,420 vehicles a day, roughly 9% of them trucks, projected to reach 51,760 by 2044. The structure is 207 ft (63.1 m) long and 57 ft wide. If it were closed, the detour would be 1.2 mi (2 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I-78 WB over Washing Valley RD(CR620) built?
It was built in 1965, making it 60 years old in 2025.
What condition is I-78 WB over Washing Valley RD(CR620) in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in July 2024.
How much traffic does I-78 WB over Washing Valley RD(CR620) carry?
About 42,420 vehicles per day (2024 count), of which roughly 9% are trucks.
How long is I-78 WB over Washing Valley RD(CR620)?
The structure is 207 ft (63.1 m) long with a longest span of 95 ft (29 m) and a deck 57 ft wide.
Who owns I-78 WB over Washing Valley RD(CR620)?
It is owned by the State Highway Agency.