Structure 1400965 · Morris County, NJ

Co. RT 642 over Rockaway River

Carries Co. RT 642 over Rockaway River, 0.5 Mi. South Of RTE 80.

Overall conditionFair

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

How ratings work
Deck6/9 · Satisfactory
Superstructure6/9 · Satisfactory
Substructuresets the rating5/9 · Fair
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT55 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 5/9 · sets the rating

55 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 box-beam bridge.

Built1928rebuilt 1994
Length55.1 ft16.8 m
Daily traffic5,854counted 2023
Last inspectedJune 2023every 24 months

Location

StateNew Jersey
CountyMorris
Location0.5 Mi. South Of RTE 80
CarriesCo. RT 642
CrossesRockaway River
Coordinates40.90472, -74.59928

Physical Characteristics

MaterialPrestressed Concrete
DesignBox Beam - Multiple
Total Length55.1 ft (16.8 m)
Max Span53.1 ft (16.2 m)
Deck Width40.7 ft (12.4 m)
Deck Area208.3 sq m
Main Spans1
Year Built1928 (reconstructed 1994)

Traffic

Avg Daily Traffic5,854 (2023)
Truck Traffic4%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJune 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical3 — Scour critical
Structure Number1400965

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.

Nearby Bridges