I-78 Westbound over North Br Raritan River
GoodSomerset County, New Jersey · 2 MI West of I-287 JCT · Structure no. 1816155
- Built
- 1965
- 60 years old, rebuilt 2023
- Condition
- Good
- inspected May 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 113 ft
- 2 main spans
- Daily traffic
- 56,581
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
I-78 Westbound over North Br Raritan River is a prestressed concrete stringer/multi-beam or girder carrying I-78 Westbound over North Br Raritan River in Somerset County, New Jersey. It was built in 1965 and reconstructed in 2023, 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 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 56,581 vehicles a day, roughly 14% of them trucks, projected to reach 67,898 by 2043. The structure is 113 ft (34.4 m) long and 56 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 9 Excellent | No problems noted. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I-78 Westbound over North Br Raritan River built?
It was built in 1965, making it 60 years old in 2025. It was reconstructed in 2023.
What condition is I-78 Westbound over North Br Raritan 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 May 2023.
How much traffic does I-78 Westbound over North Br Raritan River carry?
About 56,581 vehicles per day (2023 count), of which roughly 14% are trucks.
How long is I-78 Westbound over North Br Raritan River?
The structure is 113 ft (34.4 m) long with a longest span of 54 ft (16.5 m) and a deck 56 ft wide.
Who owns I-78 Westbound over North Br Raritan River?
It is owned by the State Highway Agency.