Structure 54 1339 · San Bernardino County, CA
Carries State Route 71 over Slaughter Creek, 08-sbd-071-r7.79-chnh.
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 | California |
| County | San Bernardino |
| Location | 08-sbd-071-r7.79-chnh |
| Carries | State Route 71 |
| Crosses | Slaughter Creek |
| Coordinates | 33.93232, -117.66179 |
| Material | Concrete Continuous |
| Design | Culvert |
| Total Length | 20.3 ft (6.2 m) |
| Max Span | 20.3 ft (6.2 m) |
| Deck Width | 367.5 ft (112 m) |
| Deck Area | 694.4 sq m |
| Main Spans | 1 |
| Year Built | 1997 |
| Avg Daily Traffic | 62,000 (2020) |
| Truck Traffic | 8% |
| Lanes On Bridge | 7 |
| Last Inspection | March 2023 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Scour Critical | 8 — Stable, low risk |
| Structure Number | 54 1339 |
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.