Structure 1463151 · Morris County, NJ

Main ST CR 511 over Montclair-boonton Line

Carries Main ST CR 511 over Montclair-boonton Line, 340ft N Cr511 & I287 Jct.

Overall conditionFair

Set by its lowest-rated component: Deck and Superstructure and Substructure at 5 of 9.

How ratings work
Decksets the rating5/9 · Fair
Superstructuresets the rating5/9 · Fair
Substructuresets the rating5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT71 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 5/9Substructure 5/9

71 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 girder bridge.

Built192799 years old
Length70.9 ft21.6 m
Daily traffic8,995counted 2023
Last inspectedJanuary 2023every 24 months

Location

StateNew Jersey
CountyMorris
Location340ft N Cr511 & I287 Jct
CarriesMain ST CR 511
CrossesMontclair-boonton Line
Coordinates40.90326, -74.40796

Physical Characteristics

MaterialSteel
DesignGirder and Floorbeam
Total Length70.9 ft (21.6 m)
Max Span65.0 ft (19.8 m)
Deck Width35.4 ft (10.8 m)
Deck Area233.3 sq m
Main Spans1
Year Built1927

Traffic

Avg Daily Traffic8,995 (2023)
Truck Traffic4%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJanuary 2023
Inspection FrequencyEvery 24 months
OwnerUnknown
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number1463151

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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