I-78 EB over Leigh Street
FairHunterdon County, New Jersey · .7 MI East of I-78 EXIT15 · Structure no. 1016158
- Built
- 1958
- 67 years old, rebuilt 1985
- Condition
- Fair
- inspected March 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 62 ft
- 1 main span
- Daily traffic
- 99,483
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
I-78 EB over Leigh Street is a prestressed concrete stringer/multi-beam or girder carrying I-78 EB over Leigh Street in Hunterdon County, New Jersey. It was built in 1958 and reconstructed in 1985, so it is 67 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 99,483 vehicles a day, roughly 9% of them trucks, projected to reach 121,389 by 2043. The structure is 62 ft (18.9 m) long and 57 ft wide. If it were closed, the detour would be 1.9 mi (3 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. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I-78 EB over Leigh Street built?
It was built in 1958, making it 67 years old in 2025. It was reconstructed in 1985.
What condition is I-78 EB over Leigh Street 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 EB over Leigh Street carry?
About 99,483 vehicles per day (2023 count), of which roughly 9% are trucks.
How long is I-78 EB over Leigh Street?
The structure is 62 ft (18.9 m) long with a longest span of 58 ft (17.7 m) and a deck 57 ft wide.
Who owns I-78 EB over Leigh Street?
It is owned by the State Highway Agency.