Spring Lake Dam

TR-MAMARONECK RIVER· Westchester, New York· Built 1895· Masonry· 20 ft tall
Significant Hazard Recreation Private

Key Takeaway

Spring Lake Dam is classified as significant hazard in New York. It was completed in 1895 and is 131 years old. Its primary use is recreation. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Height 20 ft (taller than 56.3% in NY)
Dam Length250 ft
Dam TypeMasonry
Max Storage20 acre-ft
Normal Storage18 acre-ft
Surface Area3 acres
Max Discharge80 cfs
Year Completed1895 (131 years old)
NID IDNY13959

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: June 24, 2019
State Regulated: Yes
Regulatory Agency: NYS DEC

Ownership

HARRISON POND SPORTING SOCIETY INC

Private

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Frequently Asked Questions

What is the hazard classification of Spring Lake Dam?

Spring 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 Spring Lake Dam?

Spring Lake Dam is owned by HARRISON POND SPORTING SOCIETY INC (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Spring Lake Dam built?

Spring Lake Dam was completed in 1895, making it 131 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 Spring Lake Dam?

Spring 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 Spring Lake Dam?

Spring Lake Dam has a dam height of 20 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 Spring Lake Dam last inspected?

Spring Lake Dam was last inspected on June 24, 2019. 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.