Structure 2010169 · Union County, NJ

CR 577 over I-78

Carries CR 577 over I-78, 0.74 Mi E Of 78-24 Jct.

Overall conditionGood

Set by its lowest-rated component: Superstructure and Substructure at 7 of 9.

How ratings work
Deck9/9 · Excellent
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT330 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 9/9Superstructure 7/9 · sets the ratingSubstructure 7/9 · sets the rating

330 ft end to end, longest span 81 ft: about 5 semi-trucks nose to tail. Lengths and the semi-truck 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.

Built196759 years old
Length330.1 ft100.6 m
Daily traffic16,015counted 2024
Last inspectedJuly 2024every 24 months

Location

StateNew Jersey
CountyUnion
Location0.74 Mi E Of 78-24 Jct
CarriesCR 577
CrossesI-78
Coordinates40.71281, -74.30814

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length330.1 ft (100.6 m)
Max Span81.0 ft (24.7 m)
Deck Width56.4 ft (17.2 m)
Deck Area1730.3 sq m
Main Spans4
Year Built1967

Traffic

Avg Daily Traffic16,015 (2024)
Truck Traffic4%
Lanes On Bridge2
Lanes Under Bridge11

Inspection & Ownership

Last InspectionJuly 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour CriticalNot applicable
Structure Number2010169

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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