Emery Mills

Mousam· York, Maine· Built 1889· Stone· 29 ft tall

Key Takeaway

Emery Mills is classified as high hazard in Maine. It was completed in 1889 and is 137 years old. Its primary use is flood risk reduction. 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 29 ft (taller than 88.1% in ME)
Dam Length210 ft
Dam TypeStone
Max Storage16.7K acre-ft
Normal Storage12.7K acre-ft
Surface Area1,005 acres
Drainage Area30 sq mi
Year Completed1889 (137 years old)
Year Modified1999
NID IDME00186

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: August 12, 2021
State Regulated: Yes
Regulatory Agency: MEMA

Ownership

Sanford

Local Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Emery Mills?

Emery Mills 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 Emery Mills?

Emery Mills is owned by Sanford (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Emery Mills built?

Emery Mills was completed in 1889, making it 137 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 Emery Mills?

Emery Mills serves the following purposes: Flood Risk Reduction, Fire Protection, Stock, Or Small Fish Pond, Other, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Emery Mills?

Emery Mills has a dam height of 29 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 Emery Mills last inspected?

Emery Mills was last inspected on August 12, 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.