I-78 Westbound over US 22 Westbound
FairHunterdon County, New Jersey · 1.0 MI W of Nj 31 NB Jct. · Structure no. 1018154
- Built
- 1968
- 57 years old, rebuilt 1985
- Condition
- Fair
- inspected March 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 70 ft
- 1 main span
- Daily traffic
- 65,400
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
I-78 Westbound over US 22 Westbound is a steel stringer/multi-beam or girder carrying I-78 Westbound over US 22 Westbound in Hunterdon County, New Jersey. It was built in 1968 and reconstructed in 1985, so it is 57 years old, younger 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 65,400 vehicles a day, roughly 4% of them trucks, projected to reach 79,800 by 2043. The structure is 70 ft (21.3 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 | 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 Westbound over US 22 Westbound built?
It was built in 1968, making it 57 years old in 2025. It was reconstructed in 1985.
What condition is I-78 Westbound over US 22 Westbound 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 March 2023.
How much traffic does I-78 Westbound over US 22 Westbound carry?
About 65,400 vehicles per day (2023 count), of which roughly 4% are trucks.
How long is I-78 Westbound over US 22 Westbound?
The structure is 70 ft (21.3 m) long with a longest span of 64 ft (19.5 m) and a deck 56 ft wide.
Who owns I-78 Westbound over US 22 Westbound?
It is owned by the State Highway Agency.