Structure 3001153 · Mercer County, NJ

N Willow+spring ST over D&r Feeder Canal

Carries N Willow+spring ST over D&r Feeder Canal, 0.27 Mi S Of Nj 31 Jct.

Overall conditionFair

Set by its lowest-rated component: Deck and Superstructure and Substructure at 5 of 9.

How ratings work
Decksets the rating5/9 · Fair
Superstructuresets the rating5/9 · Fair
Substructuresets the rating5/9 · Fair
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT40 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 5/9Substructure 5/9

40 ft end to end, longest span 12 ft. 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.

Built1917109 years old
Length40.0 ft12.2 m
Daily traffic6,004counted 2024
Last inspectedSeptember 2024every 24 months

Location

StateNew Jersey
CountyMercer
Location0.27 Mi S Of Nj 31 Jct
CarriesN Willow+spring ST
CrossesD&r Feeder Canal
Coordinates40.22388, -74.76773

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length40.0 ft (12.2 m)
Max Span12.1 ft (3.7 m)
Deck Width166.0 ft (50.6 m)
Deck Area617.3 sq m
Main Spans2
Year Built1917

Traffic

Avg Daily Traffic6,004 (2024)
Truck Traffic3%
Lanes On Bridge4

Inspection & Ownership

Last InspectionSeptember 2024
Inspection FrequencyEvery 24 months
OwnerOther State Agencies
Historical SignificanceHistorical significance is not determined
Scour Critical5 — Stable for scour
Structure Number3001153

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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