Weasel Brook Park Dam Reservoir Report

Last Updated: December 14, 2025

Weasel Brook Park Dam, located in Clifton City, New Jersey, serves as a significant recreational resource along the Passaic River.


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Summary

This concrete dam, with a height of 6.4 feet and a length of 76 feet, provides a storage capacity of 5 acre-feet and covers a surface area of 1 acre. The dam, completed in an unknown year, is under state jurisdiction and regulated by the New Jersey Department of Environmental Protection (NJDEP).

With a primary purpose of recreation, Weasel Brook Park Dam offers opportunities for outdoor activities in a picturesque setting. Despite its satisfactory condition assessment as of April 2019, the dam poses a significant hazard potential, requiring a regular inspection frequency of every two years. The dam's emergency action plan (EAP) was last revised in April 2019, ensuring that safety measures are in place in case of an unforeseen event.

As a vital infrastructure for water resource management and climate resilience in the region, Weasel Brook Park Dam plays a crucial role in flood control and water storage. Its association with the Passaic River and its proximity to Congressional District 09 in New Jersey highlight its importance in maintaining environmental and recreational balance in the area. The dam's continued operation and maintenance are essential for ensuring public safety and the preservation of natural resources in the region.

Dam Length

76

Dam Height

6.4

River Or Stream

Passaic River

Primary Dam Type

Concrete

Surface Area

1

Drainage Area

4.4

Nid Storage

5

Hazard Potential

Significant

Nid Height

6
       
Seasonal Comparison

Weather Forecast

Dam Data Reference

Condition Assessment

Satisfactory
No existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.
Fair
No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action. Note: Rare or extreme event is defined by the regulatory agency based on their minimum
Poor A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency. Investigations and studies are necessary.
Unsatisfactory
A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.
Not Rated
The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.
Not Available
Dams for which the condition assessment is restricted to approved government users.

Hazard Potential Classification

High
Dams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.
Significant
Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environment damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.
Low
Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner's property.
Undetermined
Dams for which a downstream hazard potential has not been designated or is not provided.
Not Available
Dams for which the downstream hazard potential is restricted to approved government users.