Loon Lake

Loon Lake is a concrete dam located in Piscataquis County, Maine, built in 1914. It carries a Low hazard potential classification and has a satisfactory condition assessment.

About Loon Lake

The primary purpose of Loon Lake is hydroelectric. The dam generates hydroelectric power by channeling water through turbines, converting the energy of flowing water into electricity. It impounds the Loon Stream.

The dam stands 17 feet tall and stretches 511 feet across, creates a reservoir covering 1,600 acres, has a maximum storage capacity of 10,537 acre-feet, and collects water from a drainage area of 60 square miles. Completed in 1914, 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 07/12/2018.

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Low HazardSatisfactory ConditionEmergency Action Plan: Not Required

Location

StateMaine
CountyPiscataquis
River/StreamLoon Stream
Coordinates46.13090, -69.60090

Physical Characteristics

Dam TypeConcrete
NID Height17 ft
Dam Height17 ft
Dam Length511 ft
Year Completed1914 (112 years old)

Storage & Hydraulics

NID Storage10,537 acre-ft
Max Storage10,537 acre-ft
Normal Storage10,537 acre-ft
Surface Area1,600 acres
Drainage Area60 sq mi
Spillway TypeNone

Ownership & Safety

PurposeHydroelectric
Owner TypeNot Listed
Hazard ClassificationLow
Condition AssessmentSatisfactory
Last Inspection07/12/2018
Emergency Action PlanNot Required

Identifiers

NID IDME00212
Federal IDME00212
More InfoState Dam Safety Program

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