Sleepy Hollow No. 2
Key Takeaway
Sleepy Hollow No. 2 is classified as high hazard in California. It was completed in 1949 and is 77 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 | 39 ft (taller than 44.4% in CA) |
| Dam Length | 600 ft |
| Dam Type | Earth |
| Max Storage | 104 acre-ft |
| Surface Area | 5 acres |
| Drainage Area | 1 sq mi |
| Year Completed | 1949 (77 years old) |
| NID ID | CA00590 |
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
Sleepy Hollow Properties
Private
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What is the hazard classification of Sleepy Hollow No. 2?
Sleepy Hollow No. 2 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 Sleepy Hollow No. 2?
Sleepy Hollow No. 2 is owned by Sleepy Hollow Properties (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Sleepy Hollow No. 2 built?
Sleepy Hollow No. 2 was completed in 1949, making it 77 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 Sleepy Hollow No. 2?
Sleepy Hollow No. 2 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 Sleepy Hollow No. 2?
Sleepy Hollow No. 2 has a dam height of 39 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 Sleepy Hollow No. 2 last inspected?
Sleepy Hollow No. 2 was last inspected on August 10, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.