Structure 361288A · Middlesex County, NJ

Gsp NB over US Route 9 SB

Carries Gsp NB over US Route 9 SB, 1.92 Mi South Of US 1.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT253 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 6/9 · sets the ratingSubstructure 7/9

253 ft end to end, longest span 126 ft: about 4 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 girder bridge.

Built194878 years old
Length253.0 ft77.1 m
Daily traffic21,281counted 2023
Last inspectedMarch 2023every 24 months

Location

StateNew Jersey
CountyMiddlesex
Location1.92 Mi South Of US 1
CarriesGsp NB
CrossesUS Route 9 SB
Coordinates40.53093, -74.29787

Physical Characteristics

MaterialSteel
DesignGirder and Floorbeam
Total Length253.0 ft (77.1 m)
Max Span126.0 ft (38.4 m)
Deck Width51.2 ft (15.6 m)
Deck Area1202.8 sq m
Main Spans3
Year Built1948

Traffic

Avg Daily Traffic21,281 (2023)
Truck Traffic1%
Lanes On Bridge2
Lanes Under Bridge3

Inspection & Ownership

Last InspectionMarch 2023
Inspection FrequencyEvery 24 months
OwnerState Toll Authority
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number361288A

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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