Lotus Lake Dam

BROWN CREEK· Suffolk, New York· Built 1980· Earth· 6 ft tall

Significant Hazard Recreation Local Government

Key Takeaway

Lotus Lake Dam is classified as significant hazard in New York. It was completed in 1980 and is 46 years old. Its primary use is recreation. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Height	6 ft (taller than 0.3% in NY)
Dam Length	540 ft
Dam Type	Earth
Max Storage	27 acre-ft
Normal Storage	16 acre-ft

Surface Area	11 acres
Drainage Area	7 sq mi
Max Discharge	40 cfs
Year Completed	1980 (46 years old)
NID ID	NY14108

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: No

Last Inspection: November 8, 2018

State Regulated: Yes

Regulatory Agency: NYS DEC

Ownership

SUFFOLK COUNTY DEPARTMENT OF PARKS, RECREATION & CONVERVATION

Local Government

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Frequently Asked Questions

What is the hazard classification of Lotus Lake Dam?

Lotus Lake Dam 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 Lotus Lake Dam?

Lotus Lake Dam is owned by SUFFOLK COUNTY DEPARTMENT OF PARKS, RECREATION & CONVERVATION (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Lotus Lake Dam built?

Lotus Lake Dam was completed in 1980, making it 46 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 Lotus Lake Dam?

Lotus 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 Lotus Lake Dam?

Lotus Lake Dam has a dam height of 6 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 Lotus Lake Dam last inspected?

Lotus Lake Dam was last inspected on November 8, 2018. 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.