Lake Pocatello Dam

TR-MONHAGEN BROOK· Orange, New York· Built 1922· Earth· 14 ft tall
Significant Hazard Recreation Private

Key Takeaway

Lake Pocatello Dam is classified as significant hazard in New York. It was completed in 1922 and is 104 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 Length450 ft
Dam TypeEarth
Max Storage136 acre-ft
Normal Storage52 acre-ft
Surface Area24 acres
Drainage Area0 sq mi
Max Discharge550 cfs
Year Completed1922 (104 years old)
NID IDNY01102

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: December 2, 2020
State Regulated: Yes
Regulatory Agency: NYS DEC

Ownership

Estate of THOMAS D'AMATO

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Lake Pocatello Dam?

Lake Pocatello 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 Lake Pocatello Dam?

Lake Pocatello Dam is owned by Estate of THOMAS D'AMATO (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Lake Pocatello Dam built?

Lake Pocatello Dam was completed in 1922, making it 104 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 Lake Pocatello Dam?

Lake Pocatello 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 Lake Pocatello Dam?

Lake Pocatello 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 Lake Pocatello Dam last inspected?

Lake Pocatello Dam was last inspected on December 2, 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.