Las Llajas
Key Takeaway
Las Llajas is classified as high hazard in California. It was completed in 1981 and is 45 years old. Its primary use is flood risk reduction. High hazard means loss of life is likely if the dam fails — it does not indicate the dam's current condition. Learn more.
Physical Details
| Dam Height | 96 ft (taller than 81.2% in CA) |
| Dam Length | 580 ft |
| Dam Type | Earth |
| Max Storage | 1.3K acre-ft |
| Surface Area | 46 acres |
| Drainage Area | 7 sq mi |
| Year Completed | 1981 (45 years old) |
| NID ID | CA01217 |
Safety Information
Loss of human life is likely if the dam fails.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
Ventura County Watershed Protection District
Local Government
Nearby Dams
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High Hazard 67 ftFrequently Asked Questions
What is the hazard classification of Las Llajas?
Las Llajas is classified as High Hazard. Loss of human life is likely if the dam fails. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Las Llajas?
Las Llajas is owned by Ventura County Watershed Protection District (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Las Llajas built?
Las Llajas was completed in 1981, making it 45 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.
What is the primary purpose of Las Llajas?
Las Llajas serves the following purposes: Flood Risk Reduction, Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Las Llajas?
Las Llajas has a dam height of 96 ft. Dam height is measured from the natural streambed at the downstream toe to the top of the dam, and may differ from the visible height.
When was Las Llajas last inspected?
Las Llajas was last inspected on August 10, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.