Structure 1400985 · Morris County, NJ

Randolph AVE Cr662 over Jacksons Brook

Carries Randolph AVE Cr662 over Jacksons Brook, 1.1 Mi.south Of RT US 46.

Overall conditionFair

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

How ratings work
Decksets the rating5/9 · Fair
Superstructuresets the rating5/9 · Fair
Substructure6/9 · Satisfactory
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT44 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 5/9 · sets the ratingSubstructure 6/9

44 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 slab bridge.

Built197749 years old
Length44.0 ft13.4 m
Daily traffic7,133counted 2023
Last inspectedAugust 2023every 24 months

Location

StateNew Jersey
CountyMorris
Location1.1 Mi.south Of RT US 46
CarriesRandolph AVE Cr662
CrossesJacksons Brook
Coordinates40.86935, -74.59690

Physical Characteristics

MaterialPrestressed Concrete
DesignSlab
Total Length44.0 ft (13.4 m)
Max Span42.0 ft (12.8 m)
Deck Width51.8 ft (15.8 m)
Deck Area211.7 sq m
Main Spans1
Year Built1977

Traffic

Avg Daily Traffic7,133 (2023)
Truck Traffic3%
Lanes On Bridge2

Inspection & Ownership

Last InspectionAugust 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number1400985

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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