Structure 1204151 · Middlesex County, NJ

US 1 over Amboy Avenue (cr 501)

Carries US 1 over Amboy Avenue (cr 501), 0.75 Mi N Of I287&rt1 Jct.

Overall conditionGood

Set by its lowest-rated component: Deck and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructure8/9 · Very Good
Substructuresets the rating7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT86 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 8/9Substructure 7/9 · sets the rating

86 ft end to end. Lengths and the car 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.

Built1956rebuilt 2008
Length86.0 ft26.2 m
Daily traffic104,694counted 2022
Last inspectedAugust 2024every 24 months

Location

StateNew Jersey
CountyMiddlesex
Location0.75 Mi N Of I287&rt1 Jct
CarriesUS 1
CrossesAmboy Avenue (cr 501)
Coordinates40.53594, -74.34367

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length86.0 ft (26.2 m)
Max Span80.1 ft (24.4 m)
Deck Width114.2 ft (34.8 m)
Deck Area911.8 sq m
Main Spans1
Year Built1956 (reconstructed 2008)

Traffic

Avg Daily Traffic104,694 (2022)
Truck Traffic4%
Lanes On Bridge8
Lanes Under Bridge2

Inspection & Ownership

Last InspectionAugust 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour CriticalNot applicable
Structure Number1204151

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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