Structure 29C27 555 00118 · Jackson County, OR
Carries County RD 555 over Whetstone Cr/e Gregory R, 1.18 Milepost.
A culvert 23 ft across with 2 openings. 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 | Oregon |
| County | Jackson |
| Location | 1.18 Milepost |
| Carries | County RD 555 |
| Crosses | Whetstone Cr/e Gregory R |
| Coordinates | 42.41340, -122.86560 |
| Material | Concrete Continuous |
| Design | Culvert |
| Total Length | 23.0 ft (7 m) |
| Max Span | 9.8 ft (3 m) |
| Deck Width | 29.9 ft (9.1 m) |
| Deck Area | 63.7 sq m |
| Main Spans | 2 |
| Year Built | 1960 |
| Avg Daily Traffic | 896 (2020) |
| Truck Traffic | 10% |
| Lanes On Bridge | 2 |
| Last Inspection | July 2023 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Scour Critical | Unknown |
| Structure Number | 29C27 555 00118 |
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.