Structure 1249167 · Middlesex County, NJ

Bridge ST (cr 669) over Amtrak NE Corridor

Carries Bridge ST (cr 669) over Amtrak NE Corridor, 0.11 Miles North Of Nj 27.

Overall conditionPoor

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

How ratings work
Decksets the rating4/9 · Poor
Superstructuresets the rating4/9 · Poor
Substructuresets the rating4/9 · Poor
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT137 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 4/9Superstructure 4/9Substructure 4/9

137 ft end to end, longest span 66 ft. 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 girder bridge.

Built193294 years old
Length137.1 ft41.8 m
Daily traffic16,708counted 2022
Last inspectedOctober 2024every 24 months

Location

StateNew Jersey
CountyMiddlesex
Location0.11 Miles North Of Nj 27
CarriesBridge ST (cr 669)
CrossesAmtrak NE Corridor
Coordinates40.53629, -74.37524

Physical Characteristics

MaterialSteel
DesignGirder and Floorbeam
Total Length137.1 ft (41.8 m)
Max Span65.9 ft (20.1 m)
Deck Width22.6 ft (6.9 m)
Deck Area288.4 sq m
Main Spans3
Year Built1932

Traffic

Avg Daily Traffic16,708 (2022)
Truck Traffic3%
Lanes On Bridge2

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 24 months
OwnerUnknown
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number1249167

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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