Structure M08577S · Middlesex County, NJ

Nj Tpk Nso-nsi Rwy over Nj Tp U Turn

Carries Nj Tpk Nso-nsi Rwy over Nj Tp U Turn, 1.3 Mi S Inter 10.

Overall conditionFair

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

How ratings work
Deck6/9 · Satisfactory
Superstructuresets the rating5/9 · Fair
Substructuresets the rating5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT217 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 5/9 · sets the ratingSubstructure 5/9 · sets the rating

217 ft end to end, longest span 88 ft: about 3 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.

Built1950rebuilt 1955
Length216.9 ft66.1 m
Daily traffic100,270counted 2023
Last inspectedApril 2023every 24 months

Location

StateNew Jersey
CountyMiddlesex
Location1.3 Mi S Inter 10
CarriesNj Tpk Nso-nsi Rwy
CrossesNj Tp U Turn
Coordinates40.50520, -74.37772

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length216.9 ft (66.1 m)
Max Span87.9 ft (26.8 m)
Deck Width113.8 ft (34.7 m)
Deck Area2293.7 sq m
Main Spans3
Year Built1950 (reconstructed 1955)

Traffic

Avg Daily Traffic100,270 (2023)
Truck Traffic13%
Lanes On Bridge6
Lanes Under Bridge2

Inspection & Ownership

Last InspectionApril 2023
Inspection FrequencyEvery 24 months
OwnerState Toll Authority
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure NumberM08577S

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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