Structure 1210152 · Middlesex County, NJ

US 9 NB over CR 604 (green St)

Carries US 9 NB over CR 604 (green St), 1.76 Mi N Of Nj 184.

Overall conditionFair

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

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

Elevation

Side view, colored by inspection rating
CAR · 15 FT67 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 6/9Substructure 5/9 · sets the rating

67 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.

Built193789 years old
Length66.9 ft20.4 m
Daily traffic23,799counted 2023
Last inspectedJuly 2023every 24 months

Location

StateNew Jersey
CountyMiddlesex
Location1.76 Mi N Of Nj 184
CarriesUS 9 NB
CrossesCR 604 (green St)
Coordinates40.55854, -74.29469

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length66.9 ft (20.4 m)
Max Span61.0 ft (18.6 m)
Deck Width43.3 ft (13.2 m)
Deck Area269.3 sq m
Main Spans1
Year Built1937

Traffic

Avg Daily Traffic23,799 (2023)
Truck Traffic4%
Lanes On Bridge2
Lanes Under Bridge1

Inspection & Ownership

Last InspectionJuly 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number1210152

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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