Shawmut

Kennebec River· Somerset, Maine· Built 1912· Concrete· 26 ft tall
Low Hazard Hydroelectric Recreation Not Listed

Key Takeaway

Shawmut is classified as low hazard in Maine. It was completed in 1912 and is 114 years old. Its primary use is hydroelectric.

Physical Details

Dam Height 26 ft (taller than 84.8% in ME)
Dam Length1,480 ft
Dam TypeConcrete
Max Storage5.0K acre-ft
Normal Storage5.0K acre-ft
Surface Area1,310 acres
Drainage Area4,200 sq mi
Max Discharge12,540 cfs
Year Completed1912 (114 years old)
NID IDME00084

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: June 5, 2019
State Regulated: No

Ownership

Not Listed

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Shawmut?

Shawmut 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 Shawmut?

Shawmut is owned by information not available (Not Listed). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Shawmut built?

Shawmut was completed in 1912, making it 114 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 Shawmut?

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

How tall is Shawmut?

Shawmut has a dam height of 26 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 Shawmut last inspected?

Shawmut was last inspected on June 5, 2019. 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.