Structure 2115166 · Warren County, NJ

Mt.herman RD (655) over I-80 EB

Carries Mt.herman RD (655) over I-80 EB, 5.1mi East Of US 46.

Overall conditionGood

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

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

Elevation

Side view, colored by inspection rating
CAR · 15 FT111 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

111 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 multi-beam bridge.

Built197056 years old
Length110.9 ft33.8 m
Daily traffic2,451counted 2023
Last inspectedMay 2023every 24 months

Location

StateNew Jersey
CountyWarren
Location5.1mi East Of US 46
CarriesMt.herman RD (655)
CrossesI-80 EB
Coordinates40.93488, -75.01482

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length110.9 ft (33.8 m)
Max Span106.0 ft (32.3 m)
Deck Width40.0 ft (12.2 m)
Deck Area412.4 sq m
Main Spans1
Year Built1970

Traffic

Avg Daily Traffic2,451 (2023)
Truck Traffic3%
Lanes On Bridge2
Lanes Under Bridge4

Inspection & Ownership

Last InspectionMay 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour CriticalNot applicable
Structure Number2115166

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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