Structure 3800027 · Hudson County, NJ

Nj-495 over Jfk BLVD E N&s Marginal

Carries Nj-495 over Jfk BLVD E N&s Marginal, Lincoln Tunnel Helix.

Overall conditionFair

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

How ratings work
Decksets the rating5/9 · Fair
Superstructure6/9 · Satisfactory
Substructure6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT449 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 6/9Substructure 6/9

449 ft end to end, longest span 143 ft: about 6 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 girder bridge.

Built1937rebuilt 1955
Length449.1 ft136.9 m
Daily traffic146,870counted 2023
Last inspectedMay 2023every 24 months

Location

StateNew Jersey
CountyHudson
LocationLincoln Tunnel Helix
CarriesNj-495
CrossesJfk BLVD E N&s Marginal
Coordinates40.76793, -74.02231

Physical Characteristics

MaterialSteel
DesignGirder and Floorbeam
Total Length449.1 ft (136.9 m)
Max Span143.0 ft (43.6 m)
Deck Width130.6 ft (39.8 m)
Deck Area5448.6 sq m
Main Spans5
Year Built1937 (reconstructed 1955)

Traffic

Avg Daily Traffic146,870 (2023)
Truck Traffic5%
Lanes On Bridge7
Lanes Under Bridge10

Inspection & Ownership

Last InspectionMay 2023
Inspection FrequencyEvery 24 months
OwnerOther State Agencies
Historical SignificanceBridge is eligible for the National Register
Scour CriticalNot applicable
Structure Number3800027

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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