Structure M06747B · Mercer County, NJ

Ramp Tni over Sno Roadway

Carries Ramp Tni over Sno Roadway, At Interchange 8.

Overall conditionGood

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

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

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT269 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

269 ft end to end, longest span 134 ft: about 4 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.

Built201412 years old
Length269.0 ft82 m
Daily traffic4,807counted 2023
Last inspectedJuly 2023every 24 months

Location

StateNew Jersey
CountyMercer
LocationAt Interchange 8
CarriesRamp Tni
CrossesSno Roadway
Coordinates40.26421, -74.51049

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length269.0 ft (82 m)
Max Span133.9 ft (40.8 m)
Deck Width32.2 ft (9.8 m)
Deck Area803.6 sq m
Main Spans2
Year Built2014

Traffic

Avg Daily Traffic4,807 (2023)
Truck Traffic1%
Lanes On Bridge1
Lanes Under Bridge3

Inspection & Ownership

Last InspectionJuly 2023
Inspection FrequencyEvery 24 months
OwnerState Toll Authority
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure NumberM06747B

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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