Guymard Lake Dam

Guymard Lake Dam is an earth dam located in Orange County, New York, built in 1858. It carries a Low hazard potential classification and has a poor condition assessment.

About Guymard Lake Dam

The primary purpose of Guymard Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Grace Woodard;lake Guymard Holding Corp;mildred Fields Revocable Trust;town Of Mount Hope (private). It impounds the Tr-neversink River near Huguenot.

The dam stands 35 feet tall and stretches 175 feet across, creates a reservoir covering 33 acres, has a maximum storage capacity of 600 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1858, the structure is one of the older dams in the region, with over a century and a half of service.

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. 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 10/11/2022.

At 35 feet, this dam is taller than 82% of dams nationwide.

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Low HazardPoor ConditionEmergency Action Plan: Yes

Location

StateNew York
CountyOrange
Nearest CityHuguenot
River/StreamTr-neversink River
Coordinates41.43194, -74.59583

Physical Characteristics

Dam TypeEarth
NID Height35 ft
Dam Height35 ft
Dam Length175 ft
Year Completed1858 (168 years old)

Storage & Hydraulics

NID Storage600 acre-ft
Max Storage600 acre-ft
Normal Storage467 acre-ft
Surface Area33 acres
Drainage Area0 sq mi
Spillway TypeUncontrolled

Ownership & Safety

PurposeRecreation
OwnerGrace Woodard;LAKE GUYMARD HOLDING CORP;Mildred Fields Revocable Trust;TOWN OF MOUNT HOPE
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentPoor
Last Inspection10/11/2022
Emergency Action PlanYes

Identifiers

NID IDNY01219
Federal IDNY01219
More InfoState Dam Safety Program

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