Structure 1662151 · Passaic County, NJ

Long Hill RD Cr631 over Montclair-boonton Line

Carries Long Hill RD Cr631 over Montclair-boonton Line, 0.3 Mi SW Us46&cr631 Jct.

Overall conditionFair

Set by its lowest-rated component: Substructure at 5 of 9.

How ratings work
Deck7/9 · Good
Superstructure6/9 · Satisfactory
Substructuresets the rating5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT106 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 6/9Substructure 5/9 · sets the rating

106 ft end to end, longest span 51 ft. 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 slab bridge.

Built198442 years old
Length106.0 ft32.3 m
Daily traffic9,780counted 2023
Last inspectedJanuary 2023every 24 months

Location

StateNew Jersey
CountyPassaic
Location0.3 Mi SW Us46&cr631 Jct
CarriesLong Hill RD Cr631
CrossesMontclair-boonton Line
Coordinates40.87344, -74.20672

Physical Characteristics

MaterialPrestressed Concrete
DesignSlab
Total Length106.0 ft (32.3 m)
Max Span50.9 ft (15.5 m)
Deck Width64.0 ft (19.5 m)
Deck Area629.9 sq m
Main Spans3
Year Built1984

Traffic

Avg Daily Traffic9,780 (2023)
Truck Traffic4%
Lanes On Bridge4

Inspection & Ownership

Last InspectionJanuary 2023
Inspection FrequencyEvery 24 months
OwnerUnknown
Historical SignificanceHistorical significance is not determined
Scour CriticalNot applicable
Structure Number1662151

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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