County Route 523 over Walnut Brook
Fair Condition92 years old5,908 vehicles/day
Location
| State | New Jersey |
| County | Hunterdon |
| Location | 0.14 Mi East Of Jct Nj 12 |
| Carries | County Route 523 |
| Crosses | Walnut Brook |
| Coordinates | 40.50501, -74.86923 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 5 (Fair) |
| Channel/Waterway | 5 (Fair) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 28.9 ft (8.8 m) |
| Max Span | 24.0 ft (7.3 m) |
| Deck Width | 37.4 ft (11.4 m) |
| Deck Area | 100.3 sq m |
| Main Spans | 1 |
| Year Built | 1934 |
Traffic
| Avg Daily Traffic | 5,908 (2023) |
| Truck Traffic | 4% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 323 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is eligible for the National Register |
| Structure Number | 1000016 |