Petrillo Lake Dam

BUCK BROOK· Sullivan, New York· Built 1952· Earth· 17 ft tall
Low Hazard Recreation Private

Key Takeaway

Petrillo Lake Dam is classified as low hazard in New York. It was completed in 1952 and is 74 years old. Its primary use is recreation.

Physical Details

Dam Height 17 ft (taller than 46.3% in NY)
Dam Length480 ft
Dam TypeEarth
Max Storage68 acre-ft
Normal Storage41 acre-ft
Surface Area9 acres
Drainage Area0 sq mi
Max Discharge358 cfs
Year Completed1952 (74 years old)
NID IDNY00641

Safety Information

Low Hazard

No probable loss of human life and low economic/environmental losses expected.

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

Emergency Action Plan: No
Last Inspection: June 28, 2017
State Regulated: Yes
Regulatory Agency: NYS DEC

Ownership

BUCK BROOK ACRES, LLC

Private

Nearby Dams

Gossweyler Lake Dam

Sullivan, NY

Significant Hazard 10 ft

Lake Florence Dam

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Low Hazard 7 ft

Tennanah Lake Dam

Sullivan, NY

Significant Hazard 17 ft

Paul Kellam Pond Dam

Sullivan, NY

Low Hazard 11 ft

Crystal Lake Dam

Sullivan, NY

Low Hazard 8 ft

Lake Muskoday Dam

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Low Hazard 17 ft

Cramer-Reichman Dam

Sullivan, NY

Significant Hazard 9 ft

Holcomb Pond Dam

Sullivan, NY

Significant Hazard 10 ft

Frequently Asked Questions

What is the hazard classification of Petrillo Lake Dam?

Petrillo Lake Dam is classified as Low Hazard. No probable loss of human life and low economic/environmental losses expected. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Petrillo Lake Dam?

Petrillo Lake Dam is owned by BUCK BROOK ACRES, LLC (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Petrillo Lake Dam built?

Petrillo Lake Dam was completed in 1952, making it 74 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 Petrillo Lake Dam?

Petrillo 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 Petrillo Lake Dam?

Petrillo Lake Dam has a dam height of 17 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 Petrillo Lake Dam last inspected?

Petrillo Lake Dam was last inspected on June 28, 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.