I-78 Eastbound over North Branch Raritan Riv
FairSomerset County, New Jersey · 2 MI West of I-287 · Structure no. 1816154
- Built
- 1965
- 60 years old
- Condition
- Fair
- inspected May 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 113 ft
- 2 main spans
- Daily traffic
- 56,582
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
I-78 Eastbound over North Branch Raritan Riv is a prestressed concrete stringer/multi-beam or girder carrying I-78 Eastbound over North Branch Raritan Riv 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 fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 56,582 vehicles a day, roughly 14% of them trucks, projected to reach 67,899 by 2043. The structure is 113 ft (34.4 m) long and 56 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 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 Eastbound over North Branch Raritan Riv built?
It was built in 1965, making it 60 years old in 2025.
What condition is I-78 Eastbound over North Branch Raritan Riv in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in May 2023.
How much traffic does I-78 Eastbound over North Branch Raritan Riv carry?
About 56,582 vehicles per day (2023 count), of which roughly 14% are trucks.
How long is I-78 Eastbound over North Branch Raritan Riv?
The structure is 113 ft (34.4 m) long with a longest span of 53 ft (16.2 m) and a deck 56 ft wide.
Who owns I-78 Eastbound over North Branch Raritan Riv?
It is owned by the State Highway Agency.