Lermond Pond

Lermond Pond is a concrete dam located in Knox County, Maine, built in 1850. It carries a Significant hazard potential classification and has a poor condition assessment.

About Lermond Pond

The primary purpose of Lermond Pond 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 Richard Morgan (private). It impounds the Mill Stream.

The dam stands 12 feet tall and stretches 350 feet across, creates a reservoir covering 171 acres, has a maximum storage capacity of 670 acre-feet, and collects water from a drainage area of 13 square miles. Completed in 1850, the structure is one of the older dams in the region, with over a century and a half of service.

This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. Its condition is rated poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. An emergency action plan is in place for this dam. The most recent inspection on record was 11/15/2017.

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Significant HazardPoor ConditionEmergency Action Plan: Yes

Location

StateMaine
CountyKnox
River/StreamMill Stream
Coordinates44.21506, -69.22224

Physical Characteristics

Dam TypeConcrete
NID Height12 ft
Dam Height12 ft
Dam Length350 ft
Year Completed1850 (176 years old)

Storage & Hydraulics

NID Storage670 acre-ft
Max Storage670 acre-ft
Normal Storage520 acre-ft
Surface Area171 acres
Drainage Area13 sq mi

Ownership & Safety

PurposeHydroelectric
OwnerRichard Morgan
Owner TypePrivate
Hazard ClassificationSignificant
Condition AssessmentPoor
Last Inspection11/15/2017
Emergency Action PlanYes

Identifiers

NID IDME00058
Federal IDME00058
More InfoState Dam Safety Program

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