Sleepy Hollow Dam

MURDERERS CREEK· Greene, New York· Built 1972· Earth· 83 ft tall

High Hazard Recreation Water Supply Private

Key Takeaway

Sleepy Hollow Dam is classified as high hazard in New York. It was completed in 1972 and is 54 years old. Its primary use is recreation. 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	83 ft (taller than 97.4% in NY)
Dam Length	750 ft
Dam Type	Earth
Max Storage	13.5K acre-ft
Normal Storage	8.4K acre-ft

Surface Area	324 acres
Drainage Area	13 sq mi
Max Discharge	14,100 cfs
Year Completed	1972 (54 years old)
NID ID	NY00142

Safety Information

High Hazard

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?

Emergency Action Plan: Yes

Last Inspection: August 6, 2020

State Regulated: Yes

Regulatory Agency: NYS DEC

Ownership

ASSOC OF PROPERTY OWNERS OF SLEEPY HOLLOW LAKE, INC.

Private

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Stuyvesant Falls

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Coxsackie Reservoir Dam

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Frequently Asked Questions

What is the hazard classification of Sleepy Hollow Dam?

Sleepy Hollow Dam 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 Dam?

Sleepy Hollow Dam is owned by ASSOC OF PROPERTY OWNERS OF SLEEPY HOLLOW LAKE, INC. (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Sleepy Hollow Dam built?

Sleepy Hollow Dam was completed in 1972, making it 54 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 Dam?

Sleepy Hollow Dam serves the following purposes: Recreation, Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Sleepy Hollow Dam?

Sleepy Hollow Dam has a dam height of 83 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 Dam last inspected?

Sleepy Hollow Dam was last inspected on August 6, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.

Data from the National Inventory of Dams (NID) maintained by the US Army Corps of Engineers. Dam conditions may have changed since the last update. This site is not affiliated with USACE. Do not use for emergency planning — contact your local dam safety program.