Structure 1813160 · Somerset County, NJ

North Bridge ST over I-287 SB

Carries North Bridge ST over I-287 SB, 2.2 Mi North Of RT 22 Jct.

Overall conditionFair

Set by its lowest-rated component: Superstructure and Substructure at 6 of 9.

How ratings work
Deck7/9 · Good
Superstructuresets the rating6/9 · Satisfactory
Substructuresets the rating6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT150 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 6/9 · sets the ratingSubstructure 6/9 · sets the rating

150 ft end to end, longest span 71 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.

Built1964rebuilt 2008
Length149.9 ft45.7 m
Daily traffic13,800counted 2024
Last inspectedAugust 2024every 24 months

Location

StateNew Jersey
CountySomerset
Location2.2 Mi North Of RT 22 Jct
CarriesNorth Bridge ST
CrossesI-287 SB
Coordinates40.58334, -74.60820

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length149.9 ft (45.7 m)
Max Span70.9 ft (21.6 m)
Deck Width44.6 ft (13.6 m)
Deck Area621.5 sq m
Main Spans3
Year Built1964 (reconstructed 2008)

Traffic

Avg Daily Traffic13,800 (2024)
Truck Traffic4%
Lanes On Bridge2
Lanes Under Bridge3

Inspection & Ownership

Last InspectionAugust 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour CriticalNot applicable
Structure Number1813160

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