Structure 361432B · Union County, NJ

Gsp Ramp Sw-c over Mill Road

Carries Gsp Ramp Sw-c over Mill Road, 0.4 M N Of Gsp/i-78.

Overall conditionGood

Set by its lowest-rated component: Deck and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructure8/9 · Very Good
Substructuresets the rating7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT84 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 8/9Substructure 7/9 · sets the rating

84 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.

Built201115 years old
Length84.0 ft25.6 m
Daily traffic19,699counted 2023
Last inspectedAugust 2023every 24 months

Location

StateNew Jersey
CountyUnion
Location0.4 M N Of Gsp/i-78
CarriesGsp Ramp Sw-c
CrossesMill Road
Coordinates40.71129, -74.24496

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length84.0 ft (25.6 m)
Max Span84.0 ft (25.6 m)
Deck Width29.9 ft (9.1 m)
Deck Area233.0 sq m
Main Spans1
Year Built2011

Traffic

Avg Daily Traffic19,699 (2023)
Truck Traffic1%
Lanes On Bridge1
Lanes Under Bridge2

Inspection & Ownership

Last InspectionAugust 2023
Inspection FrequencyEvery 24 months
OwnerState Toll Authority
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number361432B

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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