Structure 10WD120 · Hunterdon County, NJ

Hamp Road over Alexauken Creek

Carries Hamp Road over Alexauken Creek, 0.25 Mi. West Of US 202.

Overall conditionPoor

Set by its lowest-rated component: Superstructure and Substructure at 2 of 9.

How ratings work
Deck7/9 · Good
Superstructuresets the rating2/9 · Critical
Substructuresets the rating2/9 · Critical
Channelnot part of overall0/9 · Failed
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT55 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 2/9 · sets the ratingSubstructure 2/9 · sets the rating

55 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.

Built1900rebuilt 1994
Length55.1 ft16.8 m
Daily traffic67counted 2021
Last inspectedApril 2023every 24 months

Location

StateNew Jersey
CountyHunterdon
Location0.25 Mi. West Of US 202
CarriesHamp Road
CrossesAlexauken Creek
Coordinates40.39733, -74.92686

Physical Characteristics

MaterialAluminum/Wrought Iron/Cast Iron
DesignTruss - Thru
Total Length55.1 ft (16.8 m)
Max Span54.1 ft (16.5 m)
Deck Width13.1 ft (4 m)
Deck Area67.2 sq m
Main Spans1
Year Built1900 (reconstructed 1994)

Traffic

Avg Daily Traffic67 (2021)
Lanes On Bridge1

Inspection & Ownership

Last InspectionApril 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is eligible for the National Register
Scour Critical2 — Bridge closed (monitoring)
Structure Number10WD120

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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