Upper Little River

Upper Little River is a concrete dam located in Waldo County, Maine, built in 1910. It carries a Significant hazard potential classification and has a unsatisfactory condition assessment.

About Upper Little River

The primary purpose of Upper Little River is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Belfast Water District (public utility). It impounds the Little River.

The dam stands 34 feet tall and stretches 169 feet across, creates a reservoir covering 49 acres, has a maximum storage capacity of 850 acre-feet, and collects water from a drainage area of 13 square miles. Completed in 1910, the structure is over a century 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 unsatisfactory, indicating serious safety deficiencies exist that require immediate attention or remedial action. An emergency action plan is in place for this dam. The most recent inspection on record was 08/13/2022.

At 34 feet, this dam is taller than 80% of dams nationwide.

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Significant HazardUnsatisfactory ConditionEmergency Action Plan: Yes

Location

StateMaine
CountyWaldo
River/StreamLittle River
Coordinates44.39889, -69.00389

Physical Characteristics

Dam TypeConcrete
NID Height34 ft
Dam Height34 ft
Dam Length169 ft
Year Completed1910 (116 years old)

Storage & Hydraulics

NID Storage850 acre-ft
Max Storage850 acre-ft
Normal Storage480 acre-ft
Surface Area49 acres
Drainage Area13 sq mi

Ownership & Safety

PurposeRecreation
OwnerBelfast Water District
Owner TypePublic Utility
Hazard ClassificationSignificant
Condition AssessmentUnsatisfactory
Last Inspection08/13/2022
Emergency Action PlanYes

Identifiers

NID IDME00289
Federal IDME00289
More InfoState Dam Safety Program

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