Moss Pond Dam #1

MOSS POND BROOK· Essex, New York· Built 1921· Earth· 12 ft tall

Significant Hazard Recreation Private

Key Takeaway

Moss Pond Dam #1 is classified as significant hazard in New York. It was completed in 1921 and is 105 years old. Its primary use is recreation. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Height	12 ft (taller than 23.2% in NY)
Dam Length	130 ft
Dam Type	Earth
Max Storage	65 acre-ft
Normal Storage	40 acre-ft

Surface Area	10 acres
Year Completed	1921 (105 years old)
NID ID	NY13659

Safety Information

Significant Hazard

No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.

Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?

Emergency Action Plan: Yes

Last Inspection: December 5, 2017

State Regulated: Yes

Regulatory Agency: NYS DEC

Ownership

UNDERWOOD CLUB INC;UNDERWOOD CLUB INC;VICKI COLEMAN

Private

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New Pond Dam

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C H Walker Dam

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Tub Mill Pond Dam

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Rockport Pond Dam

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Lower Ausable Lake Dam

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Palmer Lake Dam

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Kingdom Dam

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High Hazard 24 ft

Frequently Asked Questions

What is the hazard classification of Moss Pond Dam #1?

Moss Pond Dam #1 is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Moss Pond Dam #1?

Moss Pond Dam #1 is owned by UNDERWOOD CLUB INC;UNDERWOOD CLUB INC;VICKI COLEMAN (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Moss Pond Dam #1 built?

Moss Pond Dam #1 was completed in 1921, making it 105 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 Moss Pond Dam #1?

Moss Pond Dam #1 serves the following purposes: Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Moss Pond Dam #1?

Moss Pond Dam #1 has a dam height of 12 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 Moss Pond Dam #1 last inspected?

Moss Pond Dam #1 was last inspected on December 5, 2017. 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.