Nj 4 over Flat Rock Brook
Fair Condition95 years old84,845 vehicles/day
Location
| State | New Jersey |
| County | Bergen |
| Location | 0.5 Mi East Of Nj RT 93 |
| Carries | Nj 4 |
| Crosses | Flat Rock Brook |
| Coordinates | 40.87438, -73.97376 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 8 (Very Good) |
| Superstructure | 8 (Very Good) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 4 — Foundations need monitoring |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Tee Beam |
| Total Length | 24.9 ft (7.6 m) |
| Max Span | 21.0 ft (6.4 m) |
| Deck Width | 99.1 ft (30.2 m) |
| Deck Area | 229.5 sq m |
| Main Spans | 1 |
| Year Built | 1931 (reconstructed 2013) |
Traffic
| Avg Daily Traffic | 84,845 (2024) |
| Truck Traffic | 5% |
| Lanes On Bridge | 5 |
Inspection & Ownership
| Last Inspection | 324 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 0206181 |