Shiloh Ranch
Key Takeaway
Shiloh Ranch is classified as high hazard in California. It was completed in 1991 and is 35 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 | 61 ft (taller than 68.4% in CA) |
| Dam Length | 635 ft |
| Dam Type | Earth |
| Max Storage | 432 acre-ft |
| Surface Area | 26 acres |
| Drainage Area | 0 sq mi |
| Year Completed | 1991 (35 years old) |
| NID ID | CA01320 |
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
Shiloh Homeowners' Association
Private
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High Hazard 49 ftFrequently Asked Questions
What is the hazard classification of Shiloh Ranch?
Shiloh Ranch 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 Shiloh Ranch?
Shiloh Ranch is owned by Shiloh Homeowners' Association (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Shiloh Ranch built?
Shiloh Ranch was completed in 1991, making it 35 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 Shiloh Ranch?
Shiloh Ranch serves the following purposes: Water Supply, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Shiloh Ranch?
Shiloh Ranch has a dam height of 61 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 Shiloh Ranch last inspected?
Shiloh Ranch was last inspected on November 2, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.