Nj Route 31 over Spruce Run
Fair Condition96 years old24,293 vehicles/day
Location
| State | New Jersey |
| County | Hunterdon |
| Location | 4.7 Mi N Of I-78 Jct |
| Carries | Nj Route 31 |
| Crosses | Spruce Run |
| Coordinates | 40.68715, -74.93401 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 5 (Fair) |
| Superstructure | 5 (Fair) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 5 (Fair) |
| Scour Critical | 4 — Foundations need monitoring |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 71.9 ft (21.9 m) |
| Max Span | 34.1 ft (10.4 m) |
| Deck Width | 44.3 ft (13.5 m) |
| Deck Area | 295.6 sq m |
| Main Spans | 2 |
| Year Built | 1930 |
Traffic
| Avg Daily Traffic | 24,293 (2023) |
| Truck Traffic | 4% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 423 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 1013154 |