Anson

Anson is a concrete dam located in Somerset County, Maine, built in 1923. It carries a Low hazard potential classification and has a satisfactory condition assessment.

About Anson

The primary purpose of Anson is hydroelectric. The dam generates hydroelectric power by channeling water through turbines, converting the energy of flowing water into electricity. The dam is owned by Eagle Creek Renewable Energies, Llc Parent Org (cro) (private). It impounds the Kennebec River near Madison.

The dam stands 36 feet tall and stretches 630 feet across, creates a reservoir covering 698 acres, has a maximum storage capacity of 5,860 acre-feet, and collects water from a drainage area of 3,148 square miles. Completed in 1923, the structure is over a century old.

This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 07/20/2022.

At 36 feet, this dam is taller than 83% of dams nationwide.

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Low HazardSatisfactory ConditionEmergency Action Plan: Not Required

Location

StateMaine
CountySomerset
Nearest CityMadison
River/StreamKennebec River
Coordinates44.79835, -69.88877

Physical Characteristics

Dam TypeConcrete
NID Height36 ft
Dam Height36 ft
Dam Length630 ft
Year Completed1923 (103 years old)

Storage & Hydraulics

NID Storage5,860 acre-ft
Max Storage5,860 acre-ft
Normal Storage5,860 acre-ft
Surface Area698 acres
Drainage Area3,148 sq mi
Max Discharge82,500 cfs
Spillway TypeControlled

Ownership & Safety

PurposeHydroelectric
OwnerEagle Creek Renewable Energies, LLC Parent Org (CRO)
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentSatisfactory
Last Inspection07/20/2022
Emergency Action PlanNot Required

Identifiers

NID IDME00087
Federal IDME00087
More InfoState Dam Safety Program

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