Structure 1050168 · Hunterdon County, NJ

Thomas Street over High Brd Indus - Abnd

Carries Thomas Street over High Brd Indus - Abnd, 2.2mi N Of I78&nj31 Jct.

Overall conditionPoor

Set by its lowest-rated component: Superstructure at 4 of 9.

How ratings work
Deck6/9 · Satisfactory
Superstructuresets the rating4/9 · Poor
Substructure6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT94 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 4/9 · sets the ratingSubstructure 6/9

94 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 girder bridge.

Built193789 years old
Length94.2 ft28.7 m
Daily traffic638counted 2023
Last inspectedSeptember 2023every 24 months

Location

StateNew Jersey
CountyHunterdon
Location2.2mi N Of I78&nj31 Jct
CarriesThomas Street
CrossesHigh Brd Indus - Abnd
Coordinates40.66980, -74.89189

Physical Characteristics

MaterialSteel
DesignGirder and Floorbeam
Total Length94.2 ft (28.7 m)
Max Span87.9 ft (26.8 m)
Deck Width25.6 ft (7.8 m)
Deck Area223.9 sq m
Main Spans1
Year Built1937

Traffic

Avg Daily Traffic638 (2023)
Truck Traffic1%
Lanes On Bridge2

Inspection & Ownership

Last InspectionSeptember 2023
Inspection FrequencyEvery 24 months
OwnerUnknown
Historical SignificanceHistorical significance is not determined
Scour CriticalNot applicable
Structure Number1050168

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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