I-78 Westbound over Beaver Brook
FairHunterdon County, New Jersey · .76 MI W. of I-78 Exit 17 · Structure no. 1016161
- Built
- 1958
- 67 years old
- Condition
- Fair
- inspected March 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 65 ft
- 1 main span
- Daily traffic
- 50,226
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
I-78 Westbound over Beaver Brook is a prestressed concrete stringer/multi-beam or girder carrying I-78 Westbound over Beaver Brook 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 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 50,226 vehicles a day, roughly 9% of them trucks, projected to reach 60,272 by 2044. The structure is 65 ft (19.8 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 | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| 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 I-78 Westbound over Beaver Brook built?
It was built in 1958, making it 67 years old in 2025.
What condition is I-78 Westbound over Beaver Brook 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 2024.
How much traffic does I-78 Westbound over Beaver Brook carry?
About 50,226 vehicles per day (2024 count), of which roughly 9% are trucks.
How long is I-78 Westbound over Beaver Brook?
The structure is 65 ft (19.8 m) long with a longest span of 59 ft (18 m) and a deck 57 ft wide.
Who owns I-78 Westbound over Beaver Brook?
It is owned by the State Highway Agency.