I-78 WB over Landsdown Trail
FairHunterdon County, New Jersey · 1 MI West of Nj 31 · Structure no. 1016155
- Built
- 1958
- 67 years old
- Condition
- Fair
- inspected July 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 122 ft
- 3 main spans
- Daily traffic
- 55,790
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
I-78 WB over Landsdown Trail is a prestressed concrete stringer/multi-beam or girder carrying I-78 WB over Landsdown Trail in Hunterdon County, New Jersey. It was built in 1958, 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 5 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 55,790 vehicles a day, roughly 9% of them trucks, projected to reach 66,948 by 2042. The structure is 122 ft (37.2 m) long and 57 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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 WB over Landsdown Trail built?
It was built in 1958, making it 67 years old in 2025.
What condition is I-78 WB over Landsdown Trail 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 July 2024.
How much traffic does I-78 WB over Landsdown Trail carry?
About 55,790 vehicles per day (2022 count), of which roughly 9% are trucks.
How long is I-78 WB over Landsdown Trail?
The structure is 122 ft (37.2 m) long with a longest span of 43 ft (13.1 m) and a deck 57 ft wide.
Who owns I-78 WB over Landsdown Trail?
It is owned by the State Highway Agency.