Preakness Hills C.C. Dam No. 1 Reservoir Report
Nearby: Barbour Mill Dam Packanack Lake Dam
Last Updated: December 8, 2025
Preakness Hills C.C.
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Summary
Dam No. 1, located in Wayne Township, New Jersey, is a privately owned earth dam primarily used for recreational purposes such as irrigation and water-based activities. Standing at a height of 15 feet and with a length of 100 feet, this dam has a storage capacity of 112 acre-feet and covers a surface area of 15 acres. While it may not be the largest dam in the area, it plays a crucial role in providing water resources for the surrounding community and ensuring a safe and enjoyable environment for recreation.
Managed by the New Jersey Department of Environmental Protection (NJDEP) and subject to state regulation, inspection, and enforcement, Preakness Hills C.C. Dam No. 1 has a satisfactory condition assessment with a high hazard potential. Regular inspections are conducted every two years to ensure the dam's structural integrity and compliance with safety guidelines. In case of emergencies, the dam's Emergency Action Plan (EAP) is in place, although it was last revised in 2009. Despite the potential risks associated with its high hazard rating, the dam continues to serve its purpose effectively, contributing to the local water supply and recreational opportunities in the area.
As part of the larger water management system in Passaic County, New Jersey, Preakness Hills C.C. Dam No. 1 plays a vital role in maintaining water levels for irrigation and recreation. With Mikie Sherrill representing Congressional District 11, the dam is situated within the Philadelphia District of the US Army Corps of Engineers. While there have been no major modifications to the dam since its completion, regular assessments and risk management measures are in place to ensure the safety and functionality of this essential water resource infrastructure in the region.
Dam Length |
100 |
Dam Height |
15 |
Primary Dam Type |
Earth |
Surface Area |
15 |
Nid Storage |
112 |
Hazard Potential |
High |
Nid Height |
15 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Dam Data Reference
Condition Assessment
SatisfactoryNo 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
HighDams 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.
Preakness Hills C.C. Dam No. 1
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