Lenape Lake Dam

Lenape Lake Dam is an earth dam located in Sullivan County, New York, built in 1920. It carries a Low hazard potential classification.

About Lenape Lake Dam

The primary purpose of Lenape Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Lenape Lake Inc (private). It impounds the Tr-matawa Lake near Morsston.

The dam stands 20 feet tall and stretches 75 feet across, creates a reservoir covering 26 acres, and has a maximum storage capacity of 260 acre-feet. Completed in 1920, the structure is over a century old.

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 01/19/2010. That was over 16 years ago.

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Low HazardNot Rated ConditionEmergency Action Plan: Not Required

Location

StateNew York
CountySullivan
Nearest CityMorsston
River/StreamTr-matawa Lake
Coordinates41.86167, -74.81833

Physical Characteristics

Dam TypeEarth
NID Height20 ft
Dam Height20 ft
Dam Length75 ft
Year Completed1920 (106 years old)

Storage & Hydraulics

NID Storage260 acre-ft
Max Storage260 acre-ft
Normal Storage220 acre-ft
Surface Area26 acres
Max Discharge95 cfs
Spillway TypeControlled

Ownership & Safety

PurposeRecreation
OwnerLENAPE LAKE INC
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentNot Rated
Last Inspection01/19/2010
Emergency Action PlanNot Required

Identifiers

NID IDNY01281
Federal IDNY01281
More InfoState Dam Safety Program

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