Herkimer

West Canada Creek· Herkimer, New York· Built 1922· Gravity· 12 ft tall
Low Hazard Hydroelectric Private

Key Takeaway

Herkimer is classified as low hazard in New York. It was completed in 1922 and is 104 years old. Its primary use is hydroelectric.

Physical Details

Dam Height 12 ft (taller than 23.2% in NY)
Dam Length351 ft
Dam TypeGravity
Max Storage163 acre-ft
Normal Storage163 acre-ft
Surface Area19 acres
Drainage Area558 sq mi
Max Discharge20,000 cfs
Year Completed1922 (104 years old)
NID IDNY01579

Safety Information

Low Hazard

No probable loss of human life and low economic/environmental losses expected.

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

Emergency Action Plan: No
Last Inspection: August 26, 2021
State Regulated: No

Ownership

ECOsponsible, LLC

Private

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Frequently Asked Questions

What is the hazard classification of Herkimer?

Herkimer is classified as Low Hazard. No probable loss of human life and low economic/environmental losses expected. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Herkimer?

Herkimer is owned by ECOsponsible, LLC (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Herkimer built?

Herkimer 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 Herkimer?

Herkimer serves the following purposes: Hydroelectric. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Herkimer?

Herkimer 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 Herkimer last inspected?

Herkimer was last inspected on August 26, 2021. 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.