Structure 1061154 · Hunterdon County, NJ

Buffalo Hollow RD over Raritan Valley Line

Carries Buffalo Hollow RD over Raritan Valley Line, 3.05 Mi NW Nj31 & I78 Jct.

Overall conditionFair

Set by its lowest-rated component: Superstructure and Substructure at 6 of 9.

How ratings work
Deck7/9 · Good
Superstructuresets the rating6/9 · Satisfactory
Substructuresets the rating6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT44 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 6/9 · sets the ratingSubstructure 6/9 · sets the rating

44 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 through truss.

Built200026 years old
Length44.0 ft13.4 m
Daily traffic440counted 2023
Last inspectedJanuary 2023every 24 months

Location

StateNew Jersey
CountyHunterdon
Location3.05 Mi NW Nj31 & I78 Jct
CarriesBuffalo Hollow RD
CrossesRaritan Valley Line
Coordinates40.67746, -74.91232

Physical Characteristics

MaterialSteel
DesignTruss - Thru
Total Length44.0 ft (13.4 m)
Max Span40.0 ft (12.2 m)
Deck Width12.8 ft (3.9 m)
Deck Area52.3 sq m
Main Spans1
Year Built2000

Traffic

Avg Daily Traffic440 (2023)
Truck Traffic3%
Lanes On Bridge1

Inspection & Ownership

Last InspectionJanuary 2023
Inspection FrequencyEvery 24 months
OwnerUnknown
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number1061154

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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