Popolopen Lake

Popolopen Creek· Orange, New York· Earth· 15 ft tall
High Hazard Water Supply -1 Fish And Wildlife Pond Recreation Federal Government

Key Takeaway

Popolopen Lake is classified as high hazard in New York. Its primary use is water supply. High hazard means loss of life is likely if the dam fails — it does not indicate the dam's current condition. Learn more.

Physical Details

Dam Height 15 ft (taller than 37.1% in NY)
Dam Length218 ft
Dam TypeEarth
Max Storage1.0K acre-ft
Normal Storage1.0K acre-ft
Surface Area145 acres
Drainage Area6 sq mi
Max Discharge565 cfs
Year Modified1948
NID IDNY00768

Safety Information

High Hazard

Loss of human life is likely if the dam fails.

Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?

Emergency Action Plan: Yes
Last Inspection: September 13, 2019
State Regulated: Yes
Regulatory Agency: NYS DEC

Ownership

West Point

Federal Government

Nearby Dams

Mine Lake

Orange, NY

Significant Hazard 22 ft

Stillwell

Orange, NY

High Hazard 62 ft

Bull Pond Dam

Orange, NY

Low Hazard 8 ft

Wilkins Pond

Orange, NY

Low Hazard 7 ft

Massawippa Lake Dam

Orange, NY

Low Hazard 22 ft

Lake Georgena

Orange, NY

Low Hazard 15 ft

Barnes Dam

Orange, NY

Low Hazard 24 ft

Lake Te-Ata Dam

Orange, NY

Significant Hazard 60 ft

Frequently Asked Questions

What is the hazard classification of Popolopen Lake?

Popolopen Lake is classified as High Hazard. Loss of human life is likely if the dam fails. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Popolopen Lake?

Popolopen Lake is owned by West Point (Federal Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

What is the primary purpose of Popolopen Lake?

Popolopen Lake serves the following purposes: Water Supply, -1, Fish And Wildlife Pond, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Popolopen Lake?

Popolopen Lake 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 Popolopen Lake last inspected?

Popolopen Lake was last inspected on September 13, 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.