Grassy Pond

Grassy Pond is a concrete dam located in Knox County, Maine, built in 1962. It carries a Low hazard potential classification.

About Grassy Pond

The primary purpose of Grassy Pond is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by The Maine Water Company (private). It impounds the Grassy Pond Outlet.

The dam stands 11 feet tall and stretches 48 feet across, creates a reservoir covering 136 acres, and has a maximum storage capacity of 272 acre-feet. Completed in 1962, the structure is well into its service life at over 50 years 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. The most recent inspection on record was 05/04/2018.

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Low HazardNot Rated ConditionEmergency Action Plan: Not Required

Location

StateMaine
CountyKnox
River/StreamGrassy Pond Outlet
Coordinates44.20368, -69.18568

Physical Characteristics

Dam TypeConcrete
NID Height11 ft
Dam Height11 ft
Dam Length48 ft
Year Completed1962 (64 years old)

Storage & Hydraulics

NID Storage272 acre-ft
Max Storage272 acre-ft
Normal Storage136 acre-ft
Surface Area136 acres

Ownership & Safety

PurposeWater Supply
OwnerThe Maine Water Company
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentNot Rated
Last Inspection05/04/2018
Emergency Action PlanNot Required

Identifiers

NID IDME96047
Federal IDME96047
More InfoState Dam Safety Program

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