Homestake Tailings
Key Takeaway
Homestake Tailings is classified as high hazard in California. It was completed in 1990 and is 36 years old. Its primary use is water supply. 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 | 169 ft (taller than 92.5% in CA) |
| Dam Length | 11,670 ft |
| Dam Type | Earth |
| Max Storage | 32.4K acre-ft |
| Surface Area | 412 acres |
| Drainage Area | 2 sq mi |
| Year Completed | 1990 (36 years old) |
| NID ID | CA01205 |
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
Homestake Mining Company
Private
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Low Hazard 43 ftFrequently Asked Questions
What is the hazard classification of Homestake Tailings?
Homestake Tailings 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 Homestake Tailings?
Homestake Tailings is owned by Homestake Mining Company (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Homestake Tailings built?
Homestake Tailings was completed in 1990, making it 36 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 Homestake Tailings?
Homestake Tailings serves the following purposes: Water Supply, Tailings. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Homestake Tailings?
Homestake Tailings has a dam height of 169 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 Homestake Tailings last inspected?
Homestake Tailings was last inspected on November 16, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.