Structure 18E1206 · Somerset County, NJ

County Route 512 over North Br Raritan River

Carries County Route 512 over North Br Raritan River, 0.77 Mi W Of US 202.

Overall conditionFair

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

How ratings work
Deck6/9 · Satisfactory
Superstructure7/9 · Good
Substructuresets the rating5/9 · Fair
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT58 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 7/9Substructure 5/9 · sets the rating

58 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.

Built200620 years old
Length58.1 ft17.7 m
Daily traffic6,621counted 2023
Last inspectedAugust 2023every 24 months

Location

StateNew Jersey
CountySomerset
Location0.77 Mi W Of US 202
CarriesCounty Route 512
CrossesNorth Br Raritan River
Coordinates40.69133, -74.64717

Physical Characteristics

MaterialSteel
DesignTruss - Thru
Total Length58.1 ft (17.7 m)
Max Span54.1 ft (16.5 m)
Deck Width39.4 ft (12 m)
Deck Area212.4 sq m
Main Spans1
Year Built2006

Traffic

Avg Daily Traffic6,621 (2023)
Truck Traffic3%
Lanes On Bridge2

Inspection & Ownership

Last InspectionAugust 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number18E1206

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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