Phoenix
Key Takeaway
Phoenix is classified as high hazard in California. It was completed in 1880 and is 146 years old. Its primary use is other. 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 | 52 ft (taller than 61.5% in CA) |
| Dam Length | 795 ft |
| Dam Type | Earth |
| Max Storage | 455 acre-ft |
| Surface Area | 76 acres |
| Drainage Area | 24 sq mi |
| Year Completed | 1880 (146 years old) |
| NID ID | CA00389 |
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
Tuolumne Utilities District
Public Utility
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High Hazard 70 ftFrequently Asked Questions
What is the hazard classification of Phoenix?
Phoenix 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 Phoenix?
Phoenix is owned by Tuolumne Utilities District (Public Utility). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Phoenix built?
Phoenix was completed in 1880, making it 146 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 Phoenix?
Phoenix serves the following purposes: Other, Irrigation, Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Phoenix?
Phoenix has a dam height of 52 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 Phoenix last inspected?
Phoenix was last inspected on September 22, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.