Loon Lake Dam

CHESTER CREEK· Warren, New York· Built 1941· Masonry· 15 ft tall

High Hazard Recreation Local Government

Key Takeaway

Loon Lake Dam is classified as high hazard in New York. It was completed in 1941 and is 85 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	15 ft (taller than 37.1% in NY)
Dam Length	105 ft
Dam Type	Masonry
Max Storage	9.8K acre-ft
Normal Storage	8.9K acre-ft

Surface Area	593 acres
Drainage Area	13 sq mi
Max Discharge	835 cfs
Year Completed	1941 (85 years old)
NID ID	NY00795

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: July 17, 2019

State Regulated: Yes

Regulatory Agency: NYS DEC

Ownership

TOWN OF CHESTER/HORICON/SCHROON

Local Government

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Brant Lake Lower Dam

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Brant Lake Upper Dam

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Dippikill Pond Dam

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Erwin M Fullerton Pond Dam

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Pack Forest Lake Dam

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Daggett Pond Dam

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Frequently Asked Questions

What is the hazard classification of Loon Lake Dam?

Loon Lake 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 Loon Lake Dam?

Loon Lake Dam is owned by TOWN OF CHESTER/HORICON/SCHROON (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Loon Lake Dam built?

Loon Lake Dam was completed in 1941, making it 85 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 Loon Lake Dam?

Loon Lake Dam 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 Loon Lake Dam?

Loon Lake Dam has a dam height of 15 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 Loon Lake Dam last inspected?

Loon Lake Dam was last inspected on July 17, 2019. 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.