Holimont Upper Reservoir Dam

NONE· Cattaraugus, New York· Built 2003· Earth· 35 ft tall
High Hazard Other Private

Key Takeaway

Holimont Upper Reservoir Dam is classified as high hazard in New York. It was completed in 2003 and is 23 years old. Its primary use is other. 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 35 ft (taller than 83.6% in NY)
Dam TypeEarth
Max Storage129 acre-ft
Normal Storage85 acre-ft
Surface Area6 acres
Drainage Area0 sq mi
Year Completed2003 (23 years old)
NID IDNY16105

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: October 31, 2019
State Regulated: Yes
Regulatory Agency: NYS DEC

Ownership

HOLIMONT INC

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Holimont Upper Reservoir Dam?

Holimont Upper Reservoir Dam 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 Holimont Upper Reservoir Dam?

Holimont Upper Reservoir Dam is owned by HOLIMONT INC (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Holimont Upper Reservoir Dam built?

Holimont Upper Reservoir Dam was completed in 2003, making it 23 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 Holimont Upper Reservoir Dam?

Holimont Upper Reservoir Dam serves the following purposes: Other. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Holimont Upper Reservoir Dam?

Holimont Upper Reservoir Dam has a dam height of 35 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 Holimont Upper Reservoir Dam last inspected?

Holimont Upper Reservoir Dam was last inspected on October 31, 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.