Nj 4 Ramp B over Nj 20 Southbound
PoorPassaic County, New Jersey · 1 Mile North of Rt 80 · Structure no. 1602151
- Built
- 1960
- 65 years old
- Condition
- Poor
- inspected July 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 155 ft
- 3 main spans
- Daily traffic
- 10,500
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
Nj 4 Ramp B over Nj 20 Southbound is a steel stringer/multi-beam or girder carrying Nj 4 Ramp B over Nj 20 Southbound in Passaic County, New Jersey. It was built in 1960, so it is 65 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 10,500 vehicles a day, roughly 4% of them trucks, projected to reach 12,800 by 2044. The structure is 155 ft (47.2 m) long and 30 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 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 Nj 4 Ramp B over Nj 20 Southbound built?
It was built in 1960, making it 65 years old in 2025.
What condition is Nj 4 Ramp B over Nj 20 Southbound 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 July 2024.
How much traffic does Nj 4 Ramp B over Nj 20 Southbound carry?
About 10,500 vehicles per day (2024 count), of which roughly 4% are trucks.
How long is Nj 4 Ramp B over Nj 20 Southbound?
The structure is 155 ft (47.2 m) long with a longest span of 78 ft (23.8 m) and a deck 30 ft wide.
Who owns Nj 4 Ramp B over Nj 20 Southbound?
It is owned by the State Highway Agency.