Lower Sunset
Key Takeaway
Lower Sunset is classified as low hazard in California. Its primary use is water supply.
Physical Details
| Dam Height | 38 ft (taller than 43.2% in CA) |
| Dam Length | 420 ft |
| Dam Type | Earth |
| Max Storage | 860 acre-ft |
| Surface Area | 41 acres |
| Drainage Area | 2 sq mi |
| NID ID | CA00636 |
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 Lower Sunset?
Lower Sunset 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 Lower Sunset?
Lower Sunset is owned by Alpine Land and Reservoir Company (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
What is the primary purpose of Lower Sunset?
Lower Sunset 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 Lower Sunset?
Lower Sunset has a dam height of 38 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 Lower Sunset last inspected?
Lower Sunset was last inspected on May 31, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.