I-78 WB over I-287 SB & Ramp G
PoorSomerset County, New Jersey · At I-287 Interchange · Structure no. 1817152
- Built
- 1963
- 62 years old, rebuilt 1986
- Condition
- Poor
- inspected June 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 178 ft
- 3 main spans
- Daily traffic
- 28,041
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
I-78 WB over I-287 SB & Ramp G is a steel stringer/multi-beam or girder carrying I-78 WB over I-287 SB & Ramp G in Somerset County, New Jersey. It was built in 1963 and reconstructed in 1986, so it is 62 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 28,041 vehicles a day, roughly 9% of them trucks, projected to reach 34,215 by 2044. The structure is 178 ft (54.3 m) long and 45 ft wide. If it were closed, the detour would be 9.9 mi (16 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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 I-287 SB & Ramp G built?
It was built in 1963, making it 62 years old in 2025. It was reconstructed in 1986.
What condition is I-78 WB over I-287 SB & Ramp G in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in June 2024.
How much traffic does I-78 WB over I-287 SB & Ramp G carry?
About 28,041 vehicles per day (2024 count), of which roughly 9% are trucks.
How long is I-78 WB over I-287 SB & Ramp G?
The structure is 178 ft (54.3 m) long with a longest span of 69 ft (21 m) and a deck 45 ft wide.
Who owns I-78 WB over I-287 SB & Ramp G?
It is owned by the State Highway Agency.