New Bass Lake
Key Takeaway
New Bass Lake is classified as high hazard in California. It was completed in 1978 and is 48 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 | 26 ft (taller than 24.8% in CA) |
| Dam Length | 1,400 ft |
| Dam Type | Earth |
| Max Storage | 745 acre-ft |
| Surface Area | 62 acres |
| Drainage Area | 0 sq mi |
| Year Completed | 1978 (48 years old) |
| NID ID | CA01087 |
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
El Dorado Hills Community Services District
Local Government
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Significant Hazard 42 ftFrequently Asked Questions
What is the hazard classification of New Bass Lake?
New Bass Lake 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 New Bass Lake?
New Bass Lake is owned by El Dorado Hills Community Services District (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was New Bass Lake built?
New Bass Lake was completed in 1978, making it 48 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 New Bass Lake?
New Bass Lake serves the following purposes: Water Supply, Irrigation, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is New Bass Lake?
New Bass Lake has a dam height of 26 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 New Bass Lake last inspected?
New Bass Lake was last inspected on November 16, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.