Donner Lake
Key Takeaway
Donner Lake is classified as significant hazard in California. It was completed in 1927 and is 99 years old. Its primary use is water supply. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 16 ft (taller than 9.6% in CA) |
| Dam Length | 45 ft |
| Dam Type | Buttress |
| Max Storage | 10.3K acre-ft |
| Surface Area | 960 acres |
| Drainage Area | 14 sq mi |
| Year Completed | 1927 (99 years old) |
| NID ID | CA00537 |
Safety Information
No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
Truckee Meadows Water Authority
Public Utility
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Low Hazard 12 ftFrequently Asked Questions
What is the hazard classification of Donner Lake?
Donner Lake is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Donner Lake?
Donner Lake is owned by Truckee Meadows Water Authority (Public Utility). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Donner Lake built?
Donner Lake was completed in 1927, making it 99 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 Donner Lake?
Donner Lake serves the following purposes: Water Supply, Irrigation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Donner Lake?
Donner Lake has a dam height of 16 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 Donner Lake last inspected?
Donner Lake was last inspected on August 26, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.