Structure M07389A · Middlesex County, NJ

Int 8a Ramp St/tn over Nj Tpk Nso-nsi Sni Sno*

Carries Int 8a Ramp St/tn over Nj Tpk Nso-nsi Sni Sno*, At Int 8a.

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 FT527 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 6/9 · sets the ratingSubstructure 7/9

527 ft end to end, longest span 95 ft: about 7 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 multi-beam bridge.

Built199036 years old
Length526.9 ft160.6 m
Daily traffic30,500counted 2023
Last inspectedMay 2023every 24 months

Location

StateNew Jersey
CountyMiddlesex
LocationAt Int 8a
CarriesInt 8a Ramp St/tn
CrossesNj Tpk Nso-nsi Sni Sno*
Coordinates40.35138, -74.47395

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length526.9 ft (160.6 m)
Max Span95.1 ft (29 m)
Deck Width58.1 ft (17.7 m)
Deck Area2842.6 sq m
Main Spans7
Year Built1990

Traffic

Avg Daily Traffic30,500 (2023)
Truck Traffic15%
Lanes On Bridge2
Lanes Under Bridge14

Inspection & Ownership

Last InspectionMay 2023
Inspection FrequencyEvery 24 months
OwnerState Toll Authority
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure NumberM07389A

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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