Hunnewell Lake

Hunnewell Lake is a rockfill dam located in Aroostook County, Maine, built in 1968. It carries a Significant hazard potential classification and has a poor condition assessment.

About Hunnewell Lake

Hunnewell Lake is a dam in Aroostook, Maine. The dam is owned by Ifw/state Of Maine (state). It impounds the Thibeault Stream.

The dam stands 12 feet tall and stretches 280 feet across, creates a reservoir covering 65 acres, has a maximum storage capacity of 575 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1968, the structure is well into its service life at over 50 years old.

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 10/28/2020.

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Significant HazardPoor ConditionEmergency Action Plan: Yes

Location

StateMaine
CountyAroostook
River/StreamThibeault Stream
Coordinates47.16148, -68.81886

Physical Characteristics

Dam TypeRockfill
NID Height12 ft
Dam Height12 ft
Dam Length280 ft
Year Completed1968 (58 years old)

Storage & Hydraulics

NID Storage575 acre-ft
Max Storage575 acre-ft
Normal Storage380 acre-ft
Surface Area65 acres
Drainage Area1 sq mi

Ownership & Safety

PurposeOther
OwnerIFW/State of Maine
Owner TypeState
Hazard ClassificationSignificant
Condition AssessmentPoor
Last Inspection10/28/2020
Emergency Action PlanYes

Identifiers

NID IDME00497
Federal IDME00497
More InfoState Dam Safety Program