Structure 1602151 · Passaic County, NJ

Nj 4 Ramp B over Nj 20 Southbound

Carries Nj 4 Ramp B over Nj 20 Southbound, 1 Mile North Of RT 80.

Overall conditionPoor

Set by its lowest-rated component: Deck at 4 of 9.

How ratings work
Decksets the rating4/9 · Poor
Superstructure5/9 · Fair
Substructure6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT155 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 4/9 · sets the ratingSuperstructure 5/9Substructure 6/9

155 ft end to end, longest span 78 ft: about 2 semi-trucks nose to tail. Lengths and the semi-truck on the deck are drawn to the same scale. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a multi-beam bridge.

Built196066 years old
Length154.9 ft47.2 m
Daily traffic10,500counted 2024
Last inspectedJuly 2024every 24 months

Location

StateNew Jersey
CountyPassaic
Location1 Mile North Of RT 80
CarriesNj 4 Ramp B
CrossesNj 20 Southbound
Coordinates40.91692, -74.13241

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length154.9 ft (47.2 m)
Max Span78.1 ft (23.8 m)
Deck Width29.9 ft (9.1 m)
Deck Area429.5 sq m
Main Spans3
Year Built1960

Traffic

Avg Daily Traffic10,500 (2024)
Truck Traffic4%
Lanes On Bridge1
Lanes Under Bridge2

Inspection & Ownership

Last InspectionJuly 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour CriticalNot applicable
Structure Number1602151

How Bridge Ratings Work

Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."

0Failed
1Imminent failure
2Critical
3Serious
4Poor
5Fair
6Satisfactory
7Good
8Very good
9Excellent
Good · lowest component 7–9
Fair · lowest component 5–6
Poor · lowest component 0–4

A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.

Nearby Bridges