Montsweag

Montsweag is a concrete dam located in Lincoln County, Maine, built in 1941. It carries a Low hazard potential classification.

About Montsweag

Montsweag is a dam in Lincoln, Maine. The dam is owned by Wiscasset (local government). It impounds the Montsweag Brook (upper) near Woolwich.

The dam stands 18 feet tall and stretches 245 feet across, creates a reservoir covering 18 acres, and has a maximum storage capacity of 196 acre-feet. Completed in 1941, the structure is well-established, with more than 75 years of service.

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 05/14/2020.

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Low HazardNot Rated ConditionEmergency Action Plan: Not Required

Location

StateMaine
CountyLincoln
Nearest CityWoolwich
River/StreamMontsweag Brook (upper)
Coordinates44.00298, -69.70198

Physical Characteristics

Dam TypeConcrete
NID Height18 ft
Dam Height18 ft
Dam Length245 ft
Year Completed1941 (85 years old)

Storage & Hydraulics

NID Storage196 acre-ft
Max Storage196 acre-ft
Normal Storage150 acre-ft
Surface Area18 acres

Ownership & Safety

PurposeOther
OwnerWiscasset
Owner TypeLocal Government
Hazard ClassificationLow
Condition AssessmentNot Rated
Last Inspection05/14/2020
Emergency Action PlanNot Required

Identifiers

NID IDME00451
Federal IDME00451
More InfoState Dam Safety Program

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