Structure 361169N · Monmouth County, NJ

Holmdel RD (cr 4) over Gsp Nbi & Nbo

Carries Holmdel RD (cr 4) over Gsp Nbi & Nbo, 1.5 Mi SE Of Gsp&rt36 Jct.

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 FT322 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 6/9 · sets the ratingSubstructure 7/9

322 ft end to end, longest span 72 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.

Built195472 years old
Length321.9 ft98.1 m
Daily traffic7,340counted 2024
Last inspectedJune 2024every 24 months

Location

StateNew Jersey
CountyMonmouth
Location1.5 Mi SE Of Gsp&rt36 Jct
CarriesHolmdel RD (cr 4)
CrossesGsp Nbi & Nbo
Coordinates40.40110, -74.18918

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length321.9 ft (98.1 m)
Max Span71.9 ft (21.9 m)
Deck Width41.3 ft (12.6 m)
Deck Area1236.1 sq m
Main Spans5
Year Built1954

Traffic

Avg Daily Traffic7,340 (2024)
Truck Traffic3%
Lanes On Bridge2
Lanes Under Bridge5

Inspection & Ownership

Last InspectionJune 2024
Inspection FrequencyEvery 24 months
OwnerState Toll Authority
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number361169N

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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