Structure 360802N · Ocean County, NJ

Birch ST (cr 77) over Gsp NB

Carries Birch ST (cr 77) over Gsp NB, 2 Mi S Of Rt37 & Gsp Jct.

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
CAR · 15 FT115 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

115 ft end to end. Lengths and the car 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.

Built201115 years old
Length115.2 ft35.1 m
Daily traffic5,576counted 2023
Last inspectedFebruary 2023every 24 months

Location

StateNew Jersey
CountyOcean
Location2 Mi S Of Rt37 & Gsp Jct
CarriesBirch ST (cr 77)
CrossesGsp NB
Coordinates39.93303, -74.20849

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length115.2 ft (35.1 m)
Max Span107.9 ft (32.9 m)
Deck Width58.1 ft (17.7 m)
Deck Area621.3 sq m
Main Spans1
Year Built2011

Traffic

Avg Daily Traffic5,576 (2023)
Truck Traffic3%
Lanes On Bridge2
Lanes Under Bridge3

Inspection & Ownership

Last InspectionFebruary 2023
Inspection FrequencyEvery 24 months
OwnerState Toll Authority
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number360802N

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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