Warrington Mill Dam Reservoir Report

Last Updated: December 5, 2025

Warrington Mill Dam, located in Gloucester, New Jersey, is a privately owned structure that serves a primary purpose of recreation.


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Summary

The dam, constructed of earth and gravity materials, stands at a height of 20 feet and stretches across 800 feet, with a storage capacity of 405 acre-feet and a surface area of 58 acres. Situated on Repaupo Creek, this dam plays a crucial role in managing water resources in the area, with a low hazard potential but poor condition assessment as of the last inspection in 2004.

Despite its recreational focus, Warrington Mill Dam is also subject to state regulation and inspection by the New Jersey Department of Environmental Protection. With a drainage area of 4.1 square miles and a maximum discharge capacity of 925 cubic feet per second, this dam plays a key role in flood control and water supply management. However, its poor condition assessment highlights the need for ongoing maintenance and potential structural improvements to ensure its continued safety and effectiveness in water resource management.

As an important feature in Woolwich Township, Warrington Mill Dam offers both recreational opportunities and essential water resource management functions. With its location on Repaupo Creek and its role in flood control and storage capacity, this dam serves as a significant asset in the local community. Moving forward, continued monitoring, maintenance, and potential upgrades will be crucial to ensure the safety and effectiveness of this vital water resource infrastructure.

Dam Length

800

Dam Height

20

River Or Stream

Repaupo Creek

Primary Dam Type

Earth

Surface Area

58

Drainage Area

4.1

Nid Storage

405

Hazard Potential

Low

Nid Height

20
       
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.