Structure 1400348 · Morris County, NJ

Rockaway Valley RD over Stony Brook

Carries Rockaway Valley RD over Stony Brook, 0.47 Mi West Of CR 618.

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 overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT56 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 7/9Substructure 7/9

56 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.

Built198640 years old
Length56.1 ft17.1 m
Daily traffic3,211counted 2023
Last inspectedJuly 2023every 24 months

Location

StateNew Jersey
CountyMorris
Location0.47 Mi West Of CR 618
CarriesRockaway Valley RD
CrossesStony Brook
Coordinates40.94053, -74.42704

Physical Characteristics

MaterialPrestressed Concrete
DesignBox Beam - Multiple
Total Length56.1 ft (17.1 m)
Max Span51.8 ft (15.8 m)
Deck Width32.2 ft (9.8 m)
Deck Area167.6 sq m
Main Spans1
Year Built1986

Traffic

Avg Daily Traffic3,211 (2023)
Truck Traffic4%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJuly 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical8 — Stable, low risk
Structure Number1400348

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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