Castaic RD over Unknown Chan
Good Condition33 years old500 vehicles/day
Location
| State | California |
| County | Los Angeles |
| Location | 0.2 S/o Ridge Route RD |
| Carries | Castaic RD |
| Crosses | Unknown Chan |
| Coordinates | 34.48567, -118.61561 |
Condition Ratings
| Overall Condition | Good |
| Channel/Waterway | 8 (Very Good) |
| Culvert | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete |
| Design | Culvert |
| Total Length | 26.2 ft (8 m) |
| Max Span | 11.8 ft (3.6 m) |
| Deck Width | 41.0 ft (12.5 m) |
| Deck Area | 100 sq m |
| Main Spans | 2 |
| Year Built | 1993 |
Traffic
| Avg Daily Traffic | 500 (2017) |
| Truck Traffic | 1% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 424 |
| Inspection Frequency | Every 48 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 53C2282 |