Structure 1603182 · Passaic County, NJ

Route Nj 21 over Monroe ST & Weasel Brook

Carries Route Nj 21 over Monroe ST & Weasel Brook, 0.12 Mi. N. Of Madison ST.

Overall conditionGood

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

How ratings work
Decksets the rating7/9 · Good
Superstructure8/9 · Very Good
Substructuresets the rating7/9 · Good
Channelnot part of overall9/9 · Excellent
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT257 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 8/9Substructure 7/9 · sets the rating

257 ft end to end, longest span 137 ft: about 4 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.

Built199927 years old
Length256.9 ft78.3 m
Daily traffic76,149counted 2023
Last inspectedMarch 2023every 24 months

Location

StateNew Jersey
CountyPassaic
Location0.12 Mi. N. Of Madison ST
CarriesRoute Nj 21
CrossesMonroe ST & Weasel Brook
Coordinates40.86762, -74.11963

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length256.9 ft (78.3 m)
Max Span137.1 ft (41.8 m)
Deck Width89.2 ft (27.2 m)
Deck Area2129.8 sq m
Main Spans2
Year Built1999

Traffic

Avg Daily Traffic76,149 (2023)
Truck Traffic5%
Lanes On Bridge4
Lanes Under Bridge3

Inspection & Ownership

Last InspectionMarch 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical9 — Foundation above flood level
Structure Number1603182

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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