Mill Pond

Allen Brook· Knox, Maine· Built 1920· Concrete· 15 ft tall

Key Takeaway

Mill Pond is classified as low hazard in Maine. It was completed in 1920 and is 106 years old. Its primary use is fish and wildlife pond.

Physical Details

Dam Height 15 ft (taller than 51.7% in ME)
Dam Length40 ft
Dam TypeConcrete
Max Storage210 acre-ft
Normal Storage180 acre-ft
Surface Area33 acres
Drainage Area0 sq mi
Year Completed1920 (106 years old)
Year Modified1964
NID IDME00507

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: May 16, 2018
State Regulated: Yes
Regulatory Agency: MEMA

Ownership

Nancy Dyer Gray

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Mill Pond?

Mill Pond 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 Mill Pond?

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

When was Mill Pond built?

Mill Pond was completed in 1920, making it 106 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: Fish And Wildlife Pond, Other, Recreation. 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 15 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 Mill Pond last inspected?

Mill Pond was last inspected on May 16, 2018. 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.