Upper Sunset Lake
Key Takeaway
Upper Sunset Lake is classified as low hazard in California. It was completed in 1904 and is 122 years old. Its primary use is water supply.
Physical Details
| Dam Height | 22 ft (taller than 18.8% in CA) |
| Dam Length | 70 ft |
| Dam Type | Earth |
| Max Storage | 200 acre-ft |
| Surface Area | 27 acres |
| Drainage Area | 0 sq mi |
| Year Completed | 1904 (122 years old) |
| NID ID | CA00639 |
Safety Information
No probable loss of human life and low economic/environmental losses expected.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
Alpine Land and Reservoir Company
Private
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Low Hazard 40 ftFrequently Asked Questions
What is the hazard classification of Upper Sunset Lake?
Upper Sunset Lake is classified as Low Hazard. No probable loss of human life and low economic/environmental losses expected. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Upper Sunset Lake?
Upper Sunset Lake is owned by Alpine Land and Reservoir Company (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Upper Sunset Lake built?
Upper Sunset Lake was completed in 1904, making it 122 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 Upper Sunset Lake?
Upper Sunset 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 Upper Sunset Lake?
Upper Sunset Lake has a dam height of 22 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 Upper Sunset Lake last inspected?
Upper Sunset Lake was last inspected on May 31, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.