Nj 31 over Stony Brook

Good Condition97 years old16,541 vehicles/day

Location

StateNew Jersey
CountyMercer
Location4.2 Mi S Of 31-202 Jct
CarriesNj 31
CrossesStony Brook
Coordinates40.38295, -74.81783

Condition Ratings

Overall ConditionGood
Deck7 (Good)
Superstructure8 (Very Good)
Substructure7 (Good)
Channel/Waterway6 (Satisfactory)
Scour Critical8 — Stable, low risk

Physical Characteristics

MaterialPrestressed Concrete
DesignSlab
Total Length38.1 ft (11.6 m)
Max Span34.1 ft (10.4 m)
Deck Width73.8 ft (22.5 m)
Deck Area261 sq m
Main Spans1
Year Built1929 (reconstructed 2006)

Traffic

Avg Daily Traffic16,541 (2024)
Truck Traffic7%
Lanes On Bridge4

Inspection & Ownership

Last Inspection524
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure Number1119156

Nearby Bridges