Structure 1100041 · Mercer County, NJ

Rosedale Rd(cr604) over Stony Brook

Carries Rosedale Rd(cr604) over Stony Brook, 1.74 Mi East Of Carter RD.

Overall conditionFair

Set by its lowest-rated component: Deck at 6 of 9.

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructure7/9 · Good
Substructure7/9 · Good
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT78 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 7/9Substructure 7/9

78 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 box-beam bridge.

Built200917 years old
Length78.1 ft23.8 m
Daily traffic9,614counted 2023
Last inspectedMarch 2023every 24 months

Location

StateNew Jersey
CountyMercer
Location1.74 Mi East Of Carter RD
CarriesRosedale Rd(cr604)
CrossesStony Brook
Coordinates40.34560, -74.68989

Physical Characteristics

MaterialPrestressed Concrete
DesignBox Beam - Multiple
Total Length78.1 ft (23.8 m)
Max Span73.2 ft (22.3 m)
Deck Width53.1 ft (16.2 m)
Deck Area385.6 sq m
Main Spans1
Year Built2009

Traffic

Avg Daily Traffic9,614 (2023)
Truck Traffic4%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMarch 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number1100041

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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