Stony Point Dam

Stony Point Dam is a concrete dam located in Rockland County, New York, built in 1900. It carries a Significant hazard potential classification and has a poor condition assessment.

About Stony Point Dam

The primary purpose of Stony Point Dam is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by Veolia Water New York, Inc. (public utility). It impounds the Cedar Pond Brook near Stony Point.

The dam stands 16 feet tall and stretches 135 feet across, creates a reservoir covering 2 acres, and has a maximum storage capacity of 9 acre-feet. Completed in 1900, the structure is over a century old.

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 04/29/2022.

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Significant HazardPoor ConditionEmergency Action Plan: Yes

Location

StateNew York
CountyRockland
Nearest CityStony Point
River/StreamCedar Pond Brook
Coordinates41.23222, -73.99972

Physical Characteristics

Dam TypeConcrete
NID Height16 ft
Dam Height16 ft
Dam Length135 ft
Year Completed1900 (126 years old)

Storage & Hydraulics

NID Storage9 acre-ft
Max Storage9 acre-ft
Normal Storage9 acre-ft
Surface Area2 acres
Spillway TypeUncontrolled

Ownership & Safety

PurposeWater Supply
OwnerVeolia Water NEW YORK, Inc.
Owner TypePublic Utility
Hazard ClassificationSignificant
Condition AssessmentPoor
Last Inspection04/29/2022
Emergency Action PlanYes

Identifiers

NID IDNY13248
Federal IDNY13248
More InfoState Dam Safety Program

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