Keewaydin Lake

Mill Brook· Oxford, Maine· Built 1850· Concrete· 11 ft tall

Key Takeaway

Keewaydin Lake is classified as low hazard in Maine. It was completed in 1850 and is 176 years old. Its primary use is flood risk reduction.

Physical Details

Dam Height 11 ft (taller than 27.3% in ME)
Dam Length173 ft
Dam TypeConcrete
Max Storage1.4K acre-ft
Normal Storage1.1K acre-ft
Surface Area307 acres
Drainage Area10 sq mi
Year Completed1850 (176 years old)
Year Modified1974
NID IDME00076

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: October 12, 2017
State Regulated: Yes
Regulatory Agency: MEMA

Ownership

Stoneham

Local Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Keewaydin Lake?

Keewaydin Lake 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 Keewaydin Lake?

Keewaydin Lake is owned by Stoneham (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Keewaydin Lake built?

Keewaydin Lake was completed in 1850, making it 176 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 Keewaydin Lake?

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

How tall is Keewaydin Lake?

Keewaydin Lake has a dam height of 11 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 Keewaydin Lake last inspected?

Keewaydin Lake was last inspected on October 12, 2017. 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.