Mallard Lake Dam

TR-RIPPONAN RIVER· Westchester, New York· Built 1939· Masonry· 11 ft tall
Low Hazard Recreation Not Listed

Key Takeaway

Mallard Lake Dam is classified as low hazard in New York. It was completed in 1939 and is 87 years old. Its primary use is recreation.

Physical Details

Dam Height 11 ft (taller than 19.5% in NY)
Dam Length300 ft
Dam TypeMasonry
Max Storage100 acre-ft
Normal Storage55 acre-ft
Surface Area15 acres
Drainage Area0 sq mi
Max Discharge186 cfs
Year Completed1939 (87 years old)
NID IDNY01508

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: August 10, 1999
State Regulated: Yes
Regulatory Agency: NYS DEC

Ownership

MICHAEL SHIMKIN

Not Listed

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Mallard Lake Dam?

Mallard 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 Mallard Lake Dam?

Mallard Lake Dam is owned by MICHAEL SHIMKIN (Not Listed). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Mallard Lake Dam built?

Mallard Lake Dam was completed in 1939, making it 87 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 Mallard Lake Dam?

Mallard 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 Mallard Lake Dam?

Mallard Lake Dam has a dam height of 11 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 Mallard Lake Dam last inspected?

Mallard Lake Dam was last inspected on August 10, 1999. 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.