Millers Mills Dam

UNADILLA RIVER· Herkimer, New York· Built 1917· Earth· 20 ft tall
Low Hazard Recreation Not Listed

Key Takeaway

Millers Mills Dam is classified as low hazard in New York. It was completed in 1917 and is 109 years old. Its primary use is recreation.

Physical Details

Dam Height 20 ft (taller than 56.3% in NY)
Dam Length200 ft
Dam TypeEarth
Max Storage200 acre-ft
Normal Storage200 acre-ft
Surface Area30 acres
Drainage Area11 sq mi
Year Completed1917 (109 years old)
NID IDNY01066

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: September 26, 1997
State Regulated: Yes
Regulatory Agency: NYS DEC

Ownership

EDWIN T. LOOMIS & MARIE GORSLINE

Not Listed

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Millers Mills Dam?

Millers Mills Dam 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 Millers Mills Dam?

Millers Mills Dam is owned by EDWIN T. LOOMIS & MARIE GORSLINE (Not Listed). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Millers Mills Dam built?

Millers Mills Dam was completed in 1917, making it 109 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 Millers Mills Dam?

Millers Mills 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 Millers Mills Dam?

Millers Mills Dam has a dam height of 20 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 Millers Mills Dam last inspected?

Millers Mills Dam was last inspected on September 26, 1997. 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.