Structure 1400547 · Morris County, NJ
Carries Long Hill RD Cr604 over Great Brook, 2.8mi SE Of I-287 Exit 30.
A culvert 20 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 | Morris |
| Location | 2.8mi SE Of I-287 Exit 30 |
| Carries | Long Hill RD Cr604 |
| Crosses | Great Brook |
| Coordinates | 40.71729, -74.48797 |
| Material | Concrete |
| Design | Culvert |
| Total Length | 20.0 ft (6.1 m) |
| Max Span | 20.0 ft (6.1 m) |
| Deck Width | 28.2 ft (8.6 m) |
| Deck Area | 52.5 sq m |
| Main Spans | 1 |
| Year Built | 1993 |
| Avg Daily Traffic | 5,468 (2023) |
| Truck Traffic | 3% |
| Lanes On Bridge | 2 |
| Last Inspection | June 2023 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Scour Critical | 8 — Stable, low risk |
| Structure Number | 1400547 |
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.