Earl Reservoir Dam

Earl Reservoir Dam is a concrete dam located in Orange County, New York, built in 1912. It carries a High hazard potential classification and has a fair condition assessment.

About Earl Reservoir Dam

The primary purpose of Earl Reservoir Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Town Of Woodbury (local government). It impounds the Tr-woodbury Creek near Highland Mills.

The dam stands 26 feet tall and stretches 460 feet across, creates a reservoir covering 16 acres, has a maximum storage capacity of 172 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1912, 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 fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. An emergency action plan is in place for this dam. The most recent inspection on record was 10/03/2023.

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 HazardFair ConditionEmergency Action Plan: Yes

Location

StateNew York
CountyOrange
Nearest CityHighland Mills
River/StreamTr-woodbury Creek
Coordinates41.36361, -74.13583

Physical Characteristics

Dam TypeConcrete
NID Height26 ft
Dam Height26 ft
Dam Length460 ft
Year Completed1912 (114 years old)

Storage & Hydraulics

NID Storage172 acre-ft
Max Storage172 acre-ft
Normal Storage122 acre-ft
Surface Area16 acres
Drainage Area0 sq mi
Max Discharge1,928 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeRecreation
OwnerTOWN OF WOODBURY
Owner TypeLocal Government
Hazard ClassificationHigh
Condition AssessmentFair
Last Inspection10/03/2023
Emergency Action PlanYes

Identifiers

NID IDNY00203
Federal IDNY00203
More InfoState Dam Safety Program

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