Dead River Road over Route I-78
FairSomerset County, New Jersey · 1.24 MI W of I-78 Exit 36 · Structure no. 1817165
- Built
- 1965
- 60 years old
- Condition
- Fair
- inspected June 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 226 ft
- 4 main spans
- Daily traffic
- 1,231
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
Dead River Road over Route I-78 is a prestressed concrete stringer/multi-beam or girder carrying Dead River Road over Route I-78 in Somerset 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 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 1,231 vehicles a day, roughly 1% of them trucks, projected to reach 1,476 by 2043. The structure is 226 ft (68.9 m) long and 45 ft wide. If it were closed, the detour would be 5 mi (8 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Dead River Road over Route I-78 built?
It was built in 1965, making it 60 years old in 2025.
What condition is Dead River 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 June 2023.
How much traffic does Dead River Road over Route I-78 carry?
About 1,231 vehicles per day (2023 count), of which roughly 1% are trucks.
How long is Dead River Road over Route I-78?
The structure is 226 ft (68.9 m) long with a longest span of 82 ft (25 m) and a deck 45 ft wide.
Who owns Dead River Road over Route I-78?
It is owned by the State Highway Agency.