Structure 1418151 · Morris County, NJ

I-280 EB over Whippany River

Carries I-280 EB over Whippany River, 1.4 Mi SE Of 280-80 Jct.

Overall conditionGood

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

How ratings work
Deck8/9 · Very Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT200 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 7/9 · sets the ratingSubstructure 7/9 · sets the rating

200 ft end to end, longest span 97 ft: about 3 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.

Built1970rebuilt 2012
Length200.1 ft61 m
Daily traffic26,100counted 2024
Last inspectedJune 2024every 24 months

Location

StateNew Jersey
CountyMorris
Location1.4 Mi SE Of 280-80 Jct
CarriesI-280 EB
CrossesWhippany River
Coordinates40.84502, -74.34883

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length200.1 ft (61 m)
Max Span97.1 ft (29.6 m)
Deck Width44.3 ft (13.5 m)
Deck Area823.5 sq m
Main Spans2
Year Built1970 (reconstructed 2012)

Traffic

Avg Daily Traffic26,100 (2024)
Truck Traffic9%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJune 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical8 — Stable, low risk
Structure Number1418151

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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