Drift Road over Route I-78
FairSomerset County, New Jersey · At I-78 Exit 41 · Structure no. 1817178
- Built
- 1965
- 60 years old, rebuilt 1994
- Condition
- Fair
- inspected March 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 358 ft
- 5 main spans
- Daily traffic
- 6,930
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
Drift Road over Route I-78 is a prestressed concrete stringer/multi-beam or girder carrying Drift Road over Route I-78 in Somerset County, New Jersey. It was built in 1965 and reconstructed in 1994, 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 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 6,930 vehicles a day, roughly 1% of them trucks, projected to reach 8,455 by 2043. The structure is 358 ft (109.1 m) long and 44 ft wide. If it were closed, the detour would be 3.1 mi (5 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Drift Road over Route I-78 built?
It was built in 1965, making it 60 years old in 2025. It was reconstructed in 1994.
What condition is Drift Road over Route I-78 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 Drift Road over Route I-78 carry?
About 6,930 vehicles per day (2023 count), of which roughly 1% are trucks.
How long is Drift Road over Route I-78?
The structure is 358 ft (109.1 m) long with a longest span of 101 ft (30.8 m) and a deck 44 ft wide.
Who owns Drift Road over Route I-78?
It is owned by the State Highway Agency.