Tennanah Lake Dam

Significant HazardPoor ConditionEmergency Action Plan: No

Location

CountySullivan
Nearest CityTennanah Lake
River/StreamTROUT BROOK
Coordinates41.89556, -74.98306

Physical Characteristics

Dam TypeConcrete
NID Height17 ft
Dam Height17 ft
Dam Length41 ft
Year Completed1914 (112 years old)

Ownership & Safety

PurposeRecreation
OwnerBLUE MOUNTAIN ASSOCIATES;BLUE MOUNTAIN ASSOCIATES
Owner TypePrivate
Hazard ClassificationSignificant
Condition AssessmentPoor
Last Inspection04/30/2025
Emergency Action PlanNo

Identifiers

NID IDNY00339
Federal IDNY00339
More InfoState Dam Safety Program

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