Structure 361280A · Middlesex County, NJ

Gsp Ramp Y over US Rt.9 SB & Ramp M

Carries Gsp Ramp Y over US Rt.9 SB & Ramp M, At Gsp & US Rt.9 Jct.

Overall conditionFair

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

How ratings work
Deck6/9 · Satisfactory
Superstructuresets the rating5/9 · Fair
Substructure6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT283 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 5/9 · sets the ratingSubstructure 6/9

283 ft end to end, longest span 155 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 girder bridge.

Built195373 years old
Length283.1 ft86.3 m
Daily traffic51,998counted 2023
Last inspectedMarch 2023every 24 months

Location

StateNew Jersey
CountyMiddlesex
LocationAt Gsp & US Rt.9 Jct
CarriesGsp Ramp Y
CrossesUS Rt.9 SB & Ramp M
Coordinates40.51898, -74.30041

Physical Characteristics

MaterialSteel
DesignGirder and Floorbeam
Total Length283.1 ft (86.3 m)
Max Span154.9 ft (47.2 m)
Deck Width50.9 ft (15.5 m)
Deck Area1337.7 sq m
Main Spans3
Year Built1953

Traffic

Avg Daily Traffic51,998 (2023)
Truck Traffic1%
Lanes On Bridge3
Lanes Under Bridge5

Inspection & Ownership

Last InspectionMarch 2023
Inspection FrequencyEvery 24 months
OwnerState Toll Authority
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number361280A

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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