Structure 1401149 · Morris County, NJ

Furnace Road over Black River

Carries Furnace Road over Black River, 0.6mls.ne Route 24.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructure7/9 · Good
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT38 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 6/9 · sets the ratingSubstructure 7/9

38 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 slab bridge.

Built1980rebuilt 1996
Length38.1 ft11.6 m
Daily traffic1,815counted 2023
Last inspectedJuly 2023every 24 months

Location

StateNew Jersey
CountyMorris
Location0.6mls.ne Route 24
CarriesFurnace Road
CrossesBlack River
Coordinates40.78739, -74.71992

Physical Characteristics

MaterialPrestressed Concrete
DesignSlab
Total Length38.1 ft (11.6 m)
Max Span33.1 ft (10.1 m)
Deck Width31.5 ft (9.6 m)
Deck Area111.4 sq m
Main Spans1
Year Built1980 (reconstructed 1996)

Traffic

Avg Daily Traffic1,815 (2023)
Truck Traffic3%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJuly 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical7 — Countermeasures installed
Structure Number1401149

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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