Flattail Lake Dam

TR-SLATE-BOTTOM CREEK· Erie, New York· Built 1940· Earth· 14 ft tall
Low Hazard Fish And Wildlife Pond State Government

Key Takeaway

Flattail Lake Dam is classified as low hazard in New York. It was completed in 1940 and is 86 years old. Its primary use is fish and wildlife pond.

Physical Details

Dam Height 14 ft (taller than 33.5% in NY)
Dam Length500 ft
Dam TypeEarth
Max Storage54 acre-ft
Normal Storage36 acre-ft
Surface Area8 acres
Year Completed1940 (86 years old)
NID IDNY14937

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: May 6, 2013
State Regulated: Yes
Regulatory Agency: NYS DEC

Ownership

NYS DEC

State Government

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Windsor Park Dam

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Freemans Dam

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Green Lake Dam

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Harry Yates Farm Pond Dam

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Mckinley Mall Retention Pond Dam

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Frequently Asked Questions

What is the hazard classification of Flattail Lake Dam?

Flattail 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 Flattail Lake Dam?

Flattail Lake Dam is owned by NYS DEC (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Flattail Lake Dam built?

Flattail Lake Dam was completed in 1940, making it 86 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 Flattail Lake Dam?

Flattail Lake Dam serves the following purposes: Fish And Wildlife Pond. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Flattail Lake Dam?

Flattail Lake Dam has a dam height of 14 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 Flattail Lake Dam last inspected?

Flattail Lake Dam was last inspected on May 6, 2013. 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.