Lake Frederick

Lake Frederick is an earth dam located in Orange County, New York, built in 1911. It carries a High hazard potential classification and has a poor condition assessment.

About Lake Frederick

The primary purpose of Lake Frederick is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by West Point (federal). It impounds the Woodbury Creek-tr near Central Valley/woodbury.

The dam stands 35 feet tall and stretches 580 feet across, creates a reservoir covering 17 acres, and has a maximum storage capacity of 273 acre-feet. Completed in 1911, the structure is over a century old.

This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. 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 09/13/2019.

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

Living Downstream

If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The New York dam safety program can provide more specific information about emergency planning for this structure.

Search for dams near your address to see all dams in your area with hazard classifications and safety data.

High HazardPoor ConditionEmergency Action Plan: Yes

Location

StateNew York
CountyOrange
Nearest CityCentral Valley/woodbury
River/StreamWoodbury Creek-tr
Coordinates41.33738, -74.09784

Physical Characteristics

Dam TypeEarth
NID Height35 ft
Dam Height35 ft
Dam Length580 ft
Year Completed1911 (115 years old)

Storage & Hydraulics

NID Storage273 acre-ft
Max Storage273 acre-ft
Normal Storage195 acre-ft
Surface Area17 acres
Max Discharge135 cfs
Spillway TypeControlled

Ownership & Safety

PurposeRecreation
OwnerWest Point
Owner TypeFederal
Hazard ClassificationHigh
Condition AssessmentPoor
Last Inspection09/13/2019
Emergency Action PlanYes

Identifiers

NID IDNY00769
Federal IDNY00769
More InfoState Dam Safety Program

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