Structure 18F1008 · Somerset County, NJ

Coriell Drive over Chambers Brook

Carries Coriell Drive over Chambers Brook, South Of N.shore Drive.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT45 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

45 ft end to end, longest span 21 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.

Built1930rebuilt 2002
Length44.9 ft13.7 m
Daily traffic609counted 2023
Last inspectedAugust 2023every 24 months

Location

StateNew Jersey
CountySomerset
LocationSouth Of N.shore Drive
CarriesCoriell Drive
CrossesChambers Brook
Coordinates40.64170, -74.62827

Physical Characteristics

MaterialWood or Timber
DesignSlab
Total Length44.9 ft (13.7 m)
Max Span21.0 ft (6.4 m)
Deck Width17.4 ft (5.3 m)
Deck Area72.6 sq m
Main Spans2
Year Built1930 (reconstructed 2002)

Traffic

Avg Daily Traffic609 (2023)
Truck Traffic1%
Lanes On Bridge1

Inspection & Ownership

Last InspectionAugust 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number18F1008

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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