Structure 1012170 · Hunterdon County, NJ
Carries Rt. 31 over Wildlife Underpass, 0.11 Mi S Of CR 618.
A culvert 22 ft across. Lengths are drawn to scale; at this length a semi-truck would be a speck. Each part is colored by its latest inspection rating. The inventory records lengths but not heights, so those are drawn as typical for a culvert.
| State | New Jersey |
| County | Hunterdon |
| Location | 0.11 Mi S Of CR 618 |
| Carries | Rt. 31 |
| Crosses | Wildlife Underpass |
| Coordinates | 40.57919, -74.86153 |
| Material | Concrete |
| Design | Culvert |
| Total Length | 22.0 ft (6.7 m) |
| Max Span | 22.0 ft (6.7 m) |
| Deck Area | 187.6 sq m |
| Main Spans | 1 |
| Year Built | 1998 |
| Avg Daily Traffic | 23,214 (2024) |
| Truck Traffic | 4% |
| Lanes On Bridge | 4 |
| Last Inspection | June 2024 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Scour Critical | Not applicable |
| Structure Number | 1012170 |
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."
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.