Maranacook Lake

Mill Stream· Kennebec, Maine· Built 1820· Concrete· 12 ft tall
Low Hazard Other Recreation Local Government

Key Takeaway

Maranacook Lake is classified as low hazard in Maine. It was completed in 1820 and is 206 years old. Its primary use is other.

Physical Details

Dam Height 12 ft (taller than 32.9% in ME)
Dam Length95 ft
Dam TypeConcrete
Max Storage2.4K acre-ft
Normal Storage2.1K acre-ft
Surface Area1,673 acres
Drainage Area25 sq mi
Year Completed1820 (206 years old)
Year Modified1965
NID IDME00099

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: February 6, 2017
State Regulated: Yes
Regulatory Agency: MEMA

Ownership

Winthrop/ Readfield

Local Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Maranacook Lake?

Maranacook 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 Maranacook Lake?

Maranacook Lake is owned by Winthrop/ Readfield (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Maranacook Lake built?

Maranacook Lake was completed in 1820, making it 206 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 Maranacook Lake?

Maranacook Lake serves the following purposes: Other, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Maranacook Lake?

Maranacook Lake has a dam height of 12 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 Maranacook Lake last inspected?

Maranacook Lake was last inspected on February 6, 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.