Harmony Lake Dam

Harmony Lake Dam is an earth dam located in Dutchess County, New York, built in 1931. It carries a Significant hazard potential classification and has a satisfactory condition assessment.

About Harmony Lake Dam

The primary purpose of Harmony Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Harmony Re Llc;jlc Equities, Llc (private). It impounds the Tr-e Branch Croton River near Akins Corners.

The dam stands 16 feet tall and stretches 160 feet across, creates a reservoir covering 7 acres, has a maximum storage capacity of 112 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1931, the structure is well-established, with more than 75 years 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 satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 11/07/2024.

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Significant HazardSatisfactory ConditionEmergency Action Plan: Yes

Location

StateNew York
CountyDutchess
Nearest CityAkins Corners
River/StreamTr-e Branch Croton River
Coordinates41.55167, -73.63472

Physical Characteristics

Dam TypeEarth
NID Height16 ft
Dam Height16 ft
Dam Length160 ft
Year Completed1931 (95 years old)

Storage & Hydraulics

NID Storage112 acre-ft
Max Storage112 acre-ft
Normal Storage84 acre-ft
Surface Area7 acres
Drainage Area0 sq mi
Max Discharge60 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeRecreation
OwnerHARMONY RE LLC;JLC Equities, LLC
Owner TypePrivate
Hazard ClassificationSignificant
Condition AssessmentSatisfactory
Last Inspection11/07/2024
Emergency Action PlanYes

Identifiers

NID IDNY01494
Federal IDNY01494
More InfoState Dam Safety Program

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