Packanack Lake Dam

Packanack Lake Dam is an earth dam located in Passaic County, New Jersey, built in 1921. It carries a High hazard potential classification and has a fair condition assessment.

About Packanack Lake Dam

The primary purpose of Packanack Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Packanack Lake Country Club & Community Assoc. (private). It impounds the Packanack Brook near Wayne.

The dam stands 15 feet tall and stretches 2,300 feet across, creates a reservoir covering 84 acres, has a maximum storage capacity of 1,115 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1921, 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 10/18/2023.

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 Jersey 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 Jersey
CountyPassaic
Nearest CityWayne
River/StreamPackanack Brook
Coordinates40.93307, -74.25278

Physical Characteristics

Dam TypeEarth
NID Height15 ft
Dam Height15 ft
Dam Length2,300 ft
Year Completed1921 (105 years old)

Storage & Hydraulics

NID Storage1,115 acre-ft
Max Storage1,115 acre-ft
Normal Storage460 acre-ft
Surface Area84 acres
Drainage Area1 sq mi
Max Discharge740 cfs

Ownership & Safety

PurposeRecreation
OwnerPackanack Lake Country Club & Community Assoc.
Owner TypePrivate
Hazard ClassificationHigh
Condition AssessmentFair
Last Inspection10/18/2023
Emergency Action PlanYes

Identifiers

NID IDNJ00239
Federal IDNJ00239
More InfoState Dam Safety Program

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