Lounsbury Pond Dam

DICKEY BROOK· Westchester, New York· Built 1919· Masonry· 15 ft tall
Significant Hazard Recreation Local Government

Key Takeaway

Lounsbury Pond Dam is classified as significant hazard in New York. It was completed in 1919 and is 107 years old. Its primary use is recreation. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Height 15 ft (taller than 37.1% in NY)
Dam Length80 ft
Dam TypeMasonry
Max Storage40 acre-ft
Normal Storage30 acre-ft
Surface Area8 acres
Max Discharge120 cfs
Year Completed1919 (107 years old)
NID IDNY13524

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: Yes
Last Inspection: November 6, 2020
State Regulated: Yes
Regulatory Agency: NYS DEC

Ownership

WESTCHESTER COUNTY DEPT OF PARKS & RECREATION

Local Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Lounsbury Pond Dam?

Lounsbury Pond 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 Lounsbury Pond Dam?

Lounsbury Pond Dam is owned by WESTCHESTER COUNTY DEPT OF PARKS & RECREATION (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Lounsbury Pond Dam built?

Lounsbury Pond Dam was completed in 1919, making it 107 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 Lounsbury Pond Dam?

Lounsbury Pond 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 Lounsbury Pond Dam?

Lounsbury Pond 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 Lounsbury Pond Dam last inspected?

Lounsbury Pond Dam was last inspected on November 6, 2020. 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.