Structure 3000168 · Somerset County, NJ

Main St. (rt 527) over Delaware & Raritan Canal

Carries Main St. (rt 527) over Delaware & Raritan Canal, 1.56 Mi North Of I-287.

Overall conditionPoor

Set by its lowest-rated component: Superstructure at 3 of 9.

How ratings work
Deck5/9 · Fair
Superstructuresets the rating3/9 · Serious
Substructure5/9 · Fair
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT94 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 3/9 · sets the ratingSubstructure 5/9

94 ft end to end, longest span 49 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 girder bridge.

Built1920rebuilt 2002
Length94.2 ft28.7 m
Daily traffic14,000counted 2024
Last inspectedApril 2024every 24 months

Location

StateNew Jersey
CountySomerset
Location1.56 Mi North Of I-287
CarriesMain St. (rt 527)
CrossesDelaware & Raritan Canal
Coordinates40.55852, -74.52801

Physical Characteristics

MaterialSteel
DesignGirder and Floorbeam
Total Length94.2 ft (28.7 m)
Max Span48.9 ft (14.9 m)
Deck Width33.1 ft (10.1 m)
Deck Area289.9 sq m
Main Spans2
Year Built1920 (reconstructed 2002)

Traffic

Avg Daily Traffic14,000 (2024)
Truck Traffic4%
Lanes On Bridge2

Inspection & Ownership

Last InspectionApril 2024
Inspection FrequencyEvery 24 months
OwnerOther State Agencies
Historical SignificanceBridge is eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number3000168

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.

Nearby Bridges