Lens Lake Dam

TR-STONY CREEK· Warren, New York· Built 1959· Earth· 12 ft tall
Significant Hazard Flood Risk Reduction Other Recreation State Government

Key Takeaway

Lens Lake Dam is classified as significant hazard in New York. It was completed in 1959 and is 67 years old. Its primary use is flood risk reduction. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Height 12 ft (taller than 23.2% in NY)
Dam Length165 ft
Dam TypeEarth
Max Storage576 acre-ft
Normal Storage384 acre-ft
Surface Area120 acres
Drainage Area2 sq mi
Max Discharge805 cfs
Year Completed1959 (67 years old)
NID IDNY00733

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: May 31, 2017
State Regulated: Yes
Regulatory Agency: NYS DEC

Ownership

NYS DEC DIVISION OF LANDS & FORESTS;NYS DEC DIVISION OF LANDS & FORESTS

State Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Lens Lake Dam?

Lens 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 Lens Lake Dam?

Lens Lake Dam is owned by NYS DEC DIVISION OF LANDS & FORESTS;NYS DEC DIVISION OF LANDS & FORESTS (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Lens Lake Dam built?

Lens Lake Dam was completed in 1959, making it 67 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 Lens Lake Dam?

Lens Lake Dam serves the following purposes: Flood Risk Reduction, Other, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Lens Lake Dam?

Lens Lake Dam has a dam height of 12 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 Lens Lake Dam last inspected?

Lens Lake Dam was last inspected on May 31, 2017. 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.