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.
Location
| State | New Jersey |
| County | Passaic |
| Nearest City | Wayne |
| River/Stream | Packanack Brook |
| Coordinates | 40.93307, -74.25278 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 15 ft |
| Dam Height | 15 ft |
| Dam Length | 2,300 ft |
| Year Completed | 1921 (105 years old) |
Storage & Hydraulics
| NID Storage | 1,115 acre-ft |
| Max Storage | 1,115 acre-ft |
| Normal Storage | 460 acre-ft |
| Surface Area | 84 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 740 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | Packanack Lake Country Club & Community Assoc. |
| Owner Type | Private |
| Hazard Classification | High |
| Condition Assessment | Fair |
| Last Inspection | 10/18/2023 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | NJ00239 |
| Federal ID | NJ00239 |
| More Info | State Dam Safety Program |