S-X
Key Takeaway
S-X is classified as low hazard in California. It was completed in 1917 and is 109 years old. Its primary use is water supply.
Physical Details
| Dam Height | 45 ft (taller than 54% in CA) |
| Dam Length | 650 ft |
| Dam Type | Earth |
| Max Storage | 4.2K acre-ft |
| Surface Area | 330 acres |
| Drainage Area | 12 sq mi |
| Year Completed | 1917 (109 years old) |
| NID ID | CA00461 |
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
Lazy Spade, LLC
Private
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Significant Hazard 28 ftFrequently Asked Questions
What is the hazard classification of S-X?
S-X 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 S-X?
S-X is owned by Lazy Spade, LLC (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was S-X built?
S-X was completed in 1917, making it 109 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 S-X?
S-X 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 S-X?
S-X has a dam height of 45 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 S-X last inspected?
S-X was last inspected on June 7, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.