Nishisakawick Creek Dam Reservoir Report

Last Updated: December 6, 2025

Nishisakawick Creek Dam in Everittstown, New Jersey, stands as a vital infrastructure for recreation along the Nishisakwick Creek.


°F

°F

mph

Wind

%

Humidity

Summary

Completed in 1930, this Earth-type dam has a height of 23 feet and a length of 603 feet, providing a storage capacity of 93 acre-feet. With a low hazard potential and fair condition assessment, the dam serves as a crucial asset for water resource management and flood control in the region.

Managed by private owners and regulated by the New Jersey Department of Environmental Protection, the dam undergoes regular inspections to ensure its structural integrity and safety. Its primary purpose of recreation highlights the importance of this infrastructure for the local community and visitors alike. The dam's location in Alexandria Township offers a picturesque setting for outdoor activities and wildlife habitat conservation, contributing to the overall environmental health of the area.

Despite its age, Nishisakawick Creek Dam continues to fulfill its role in water management and recreational activities, demonstrating the importance of maintaining and monitoring such critical infrastructure. With proper oversight and maintenance, this dam will continue to serve as a valuable resource for water enthusiasts and climate advocates in Hunterdon County, New Jersey.

Year Completed

1930

Dam Length

603

Dam Height

23

River Or Stream

Nishisakwick Creek

Primary Dam Type

Earth

Surface Area

7

Drainage Area

0.83

Nid Storage

93

Hazard Potential

Low

Nid Height

23
       
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.