Edgewood Lake Lower Dam

Edgewood Lake Lower Dam is an earth dam located in Sullivan County, New York, built in 1945. It carries a Significant hazard potential classification and has a poor condition assessment.

About Edgewood Lake Lower Dam

The primary purpose of Edgewood Lake Lower Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Dt Mance & Associates (private). It impounds the Tr-beaver Kill near Beaverkill.

The dam stands 15 feet tall and stretches 60 feet across, creates a reservoir covering 21 acres, has a maximum storage capacity of 156 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1945, 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 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 09/17/2024.

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Significant HazardPoor ConditionEmergency Action Plan: Yes

Location

StateNew York
CountySullivan
Nearest CityBeaverkill
River/StreamTr-beaver Kill
Coordinates41.95917, -74.83167

Physical Characteristics

Dam TypeEarth
NID Height15 ft
Dam Height15 ft
Dam Length60 ft
Year Completed1945 (81 years old)

Storage & Hydraulics

NID Storage156 acre-ft
Max Storage156 acre-ft
Normal Storage104 acre-ft
Surface Area21 acres
Drainage Area0 sq mi
Max Discharge30 cfs
Spillway TypeControlled

Ownership & Safety

PurposeRecreation
OwnerDT Mance & Associates
Owner TypePrivate
Hazard ClassificationSignificant
Condition AssessmentPoor
Last Inspection09/17/2024
Emergency Action PlanYes

Identifiers

NID IDNY01252
Federal IDNY01252
More InfoState Dam Safety Program

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