Lake Wyandotte
Key Takeaway
Lake Wyandotte is classified as high hazard in California. It was completed in 1924 and is 102 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 | 46 ft (taller than 55.4% in CA) |
| Dam Length | 900 ft |
| Dam Type | Earth |
| Max Storage | 313 acre-ft |
| Surface Area | 18 acres |
| Drainage Area | 3 sq mi |
| Year Completed | 1924 (102 years old) |
| NID ID | CA00267 |
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
South Feather Water and Power Agency
Public Utility
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High Hazard 37 ftCannon Ranch
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Significant Hazard 17 ftThermalito Forebay
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High Hazard 91 ftFrequently Asked Questions
What is the hazard classification of Lake Wyandotte?
Lake Wyandotte 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 Lake Wyandotte?
Lake Wyandotte is owned by South Feather Water and Power Agency (Public Utility). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Lake Wyandotte built?
Lake Wyandotte was completed in 1924, making it 102 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 Lake Wyandotte?
Lake Wyandotte 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 Lake Wyandotte?
Lake Wyandotte has a dam height of 46 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 Lake Wyandotte last inspected?
Lake Wyandotte was last inspected on October 20, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.