I78 WB over Lamington River
FairHunterdon County, New Jersey · 4.2 MI West of I-287 · Structure no. 1018176
- Built
- 1965
- 60 years old
- Condition
- Fair
- inspected June 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 103 ft
- 2 main spans
- Daily traffic
- 64,537
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
I78 WB over Lamington River is a prestressed concrete stringer/multi-beam or girder carrying I78 WB over Lamington River in Hunterdon 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 64,537 vehicles a day, roughly 14% of them trucks, projected to reach 78,747 by 2043. The structure is 103 ft (31.4 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 I78 WB over Lamington River built?
It was built in 1965, making it 60 years old in 2025.
What condition is I78 WB over Lamington River 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 June 2023.
How much traffic does I78 WB over Lamington River carry?
About 64,537 vehicles per day (2023 count), of which roughly 14% are trucks.
How long is I78 WB over Lamington River?
The structure is 103 ft (31.4 m) long with a longest span of 49 ft (14.9 m) and a deck 56 ft wide.
Who owns I78 WB over Lamington River?
It is owned by the State Highway Agency.