Mill Pond

Upper End of Harbor· Knox, Maine· Built 1915· Earth· 20 ft tall

Key Takeaway

Mill Pond is classified as unknown in Maine. It was completed in 1915 and is 111 years old. Its primary use is fire protection.

Physical Details

Dam Height 20 ft (taller than 74.1% in ME)
Dam Length100 ft
Dam TypeEarth
Max Storage0 acre-ft
Normal Storage150 acre-ft
Surface Area15 acres
Drainage Area0 sq mi
Year Completed1915 (111 years old)
Year Modified1974
NID IDME96042

Safety Information

Unknown

Hazard potential has not been determined.

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

Emergency Action Plan: No
State Regulated: Yes
Regulatory Agency: MEMA

Ownership

Hugh Greenway

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Mill Pond?

Mill Pond is classified as Unknown. Hazard potential has not been determined. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Mill Pond?

Mill Pond is owned by Hugh Greenway (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Mill Pond built?

Mill Pond was completed in 1915, making it 111 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 Mill Pond?

Mill Pond serves the following purposes: Fire Protection, Stock, Or Small Fish Pond, Fish And Wildlife Pond. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Mill Pond?

Mill Pond 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.

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.