Structure 361353T · Union County, NJ

Madison Hill Cr604 over Garden State Parkway

Carries Madison Hill Cr604 over Garden State Parkway, 3.5 Mile North Of Nj 27.

Overall conditionFair

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

How ratings work
Superstructuresets the rating6/9 · Satisfactory
Substructuresets the rating6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT160 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck not ratedSuperstructure 6/9Substructure 6/9

160 ft end to end, longest span 74 ft: about 2 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 rigid-frame bridge.

Built194878 years old
Length160.1 ft48.8 m
Daily traffic7,997counted 2023
Last inspectedJune 2023every 24 months

Location

StateNew Jersey
CountyUnion
Location3.5 Mile North Of Nj 27
CarriesMadison Hill Cr604
CrossesGarden State Parkway
Coordinates40.61509, -74.31149

Physical Characteristics

MaterialConcrete Continuous
DesignFrame
Total Length160.1 ft (48.8 m)
Max Span74.1 ft (22.6 m)
Deck Width55.1 ft (16.8 m)
Deck Area819.8 sq m
Main Spans2
Year Built1948

Traffic

Avg Daily Traffic7,997 (2023)
Truck Traffic4%
Lanes On Bridge2
Lanes Under Bridge10

Inspection & Ownership

Last InspectionJune 2023
Inspection FrequencyEvery 24 months
OwnerState Toll Authority
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number361353T

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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