Structure 3000158 · Middlesex County, NJ

Old Route 27 over Delaware & Raritan Canal

Carries Old Route 27 over Delaware & Raritan Canal, 200 Ft S Of New RT 27.

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 overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT31 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 7/9Substructure 5/9 · sets the rating

31 ft end to end, longest span 14 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 multi-beam bridge.

Built1957rebuilt 1991
Length30.8 ft9.4 m
Daily traffic122counted 2024
Last inspectedSeptember 2024every 24 months

Location

StateNew Jersey
CountyMiddlesex
Location200 Ft S Of New RT 27
CarriesOld Route 27
CrossesDelaware & Raritan Canal
Coordinates40.37413, -74.61838

Physical Characteristics

MaterialWood or Timber
DesignStringer/Multi-beam
Total Length30.8 ft (9.4 m)
Max Span14.1 ft (4.3 m)
Deck Width29.9 ft (9.1 m)
Deck Area85.5 sq m
Main Spans2
Year Built1957 (reconstructed 1991)

Traffic

Avg Daily Traffic122 (2024)
Truck Traffic1%
Lanes On Bridge2

Inspection & Ownership

Last InspectionSeptember 2024
Inspection FrequencyEvery 24 months
OwnerOther State Agencies
Historical SignificanceHistorical significance is not determined
Scour Critical8 — Stable, low risk
Structure Number3000158

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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