Nj 31 over Willoughby Brook
Fair Condition96 years old24,297 vehicles/day
Location
| State | New Jersey |
| County | Hunterdon |
| Location | 0.99 Mi North Of CR 513 |
| Carries | Nj 31 |
| Crosses | Willoughby Brook |
| Coordinates | 40.67162, -74.91513 |
Condition Ratings
| Overall Condition | Fair |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 3 — Scour critical |
Physical Characteristics
| Material | Concrete |
| Design | Arch - Deck |
| Total Length | 28.9 ft (8.8 m) |
| Max Span | 28.9 ft (8.8 m) |
| Deck Width | 44.0 ft (13.4 m) |
| Deck Area | 117.9 sq m |
| Main Spans | 1 |
| Year Built | 1930 |
Traffic
| Avg Daily Traffic | 24,297 (2023) |
| Truck Traffic | 4% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 323 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 1013152 |