Structure 382305C · Union County, NJ

278 over Amboy Avenue

Carries 278 over Amboy Avenue, Elizabeth Nj.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 8 of 9.

How ratings work
Decksets the rating8/9 · Very Good
Superstructuresets the rating8/9 · Very Good
Substructuresets the rating8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT1,506 FT OVERALL250 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 8/9

1,506 ft end to end, longest span 177 ft: about 4.2 football fields. 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.

Built20179 years old
Length1505.9 ft459 m
Daily traffic32,714counted 2023
Last inspectedAugust 2023every 24 months

Location

StateNew Jersey
CountyUnion
LocationElizabeth Nj
Carries278
CrossesAmboy Avenue
Coordinates40.63692, -74.20390

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignStringer/Multi-beam
Total Length1505.9 ft (459 m)
Max Span176.8 ft (53.9 m)
Deck Width56.1 ft (17.1 m)
Deck Area7848.9 sq m
Main Spans9
Year Built2017

Traffic

Avg Daily Traffic32,714 (2023)
Truck Traffic9%
Lanes On Bridge3
Lanes Under Bridge4

Inspection & Ownership

Last InspectionAugust 2023
Inspection FrequencyEvery 24 months
OwnerLocal Toll Authority
Historical SignificanceHistorical significance is not determined
Scour CriticalNot applicable
Structure Number382305C

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.

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