I-78 over Union Avenue
FairUnion County, New Jersey · 0.3 MI West of Gsp · Structure no. 2011158
- Built
- 1976
- 49 years old, rebuilt 2010
- Condition
- Fair
- inspected April 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 92 ft
- 1 main span
- Daily traffic
- 202,840
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
I-78 over Union Avenue is a steel stringer/multi-beam or girder carrying I-78 over Union Avenue in Union County, New Jersey. It was built in 1976 and reconstructed in 2010, so it is 49 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 202,840 vehicles a day, roughly 9% of them trucks, projected to reach 245,700 by 2042. The structure is 92 ft (28 m) long and 244 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 | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I-78 over Union Avenue built?
It was built in 1976, making it 49 years old in 2025. It was reconstructed in 2010.
What condition is I-78 over Union Avenue 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 April 2024.
How much traffic does I-78 over Union Avenue carry?
About 202,840 vehicles per day (2024 count), of which roughly 9% are trucks.
How long is I-78 over Union Avenue?
The structure is 92 ft (28 m) long with a longest span of 88 ft (26.8 m) and a deck 244 ft wide.
Who owns I-78 over Union Avenue?
It is owned by the State Highway Agency.