Centennial
Key Takeaway
Centennial 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 | 62 ft (taller than 68.9% in CA) |
| Dam Length | 530 ft |
| Dam Type | Earth |
| Max Storage | 655 acre-ft |
| Surface Area | 33 acres |
| Drainage Area | 3 sq mi |
| Year Completed | 1990 (36 years old) |
| NID ID | CA01246 |
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
City of Willits
Local Government
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What is the hazard classification of Centennial?
Centennial 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 Centennial?
Centennial is owned by City of Willits (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Centennial built?
Centennial 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 Centennial?
Centennial serves the following purposes: Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Centennial?
Centennial has a dam height of 62 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 Centennial last inspected?
Centennial was last inspected on October 26, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.