Sly Pond Dam

TR-HALFWAY CREEK· Washington, New York· Built 1896· Earth· 14 ft tall
Significant Hazard Recreation Private

Key Takeaway

Sly Pond Dam is classified as significant hazard in New York. It was completed in 1896 and is 130 years old. Its primary use is recreation. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Height 14 ft (taller than 33.5% in NY)
Dam Length216 ft
Dam TypeEarth
Max Storage816 acre-ft
Normal Storage459 acre-ft
Surface Area51 acres
Drainage Area1 sq mi
Year Completed1896 (130 years old)
NID IDNY00885

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 2, 2018
State Regulated: Yes
Regulatory Agency: NYS DEC

Ownership

BOY SCOUTS OF AMERICA-MOHICAN COUNCIL

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Sly Pond Dam?

Sly 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 Sly Pond Dam?

Sly Pond Dam is owned by BOY SCOUTS OF AMERICA-MOHICAN COUNCIL (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Sly Pond Dam built?

Sly Pond Dam was completed in 1896, making it 130 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 Sly Pond Dam?

Sly 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 Sly Pond Dam?

Sly Pond 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 Sly Pond Dam last inspected?

Sly Pond Dam was last inspected on November 2, 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.