Haddon Lake Dam Reservoir Report

Last Updated: December 5, 2025

Haddon Lake Dam, located in West Collingswood Heights, New Jersey, stands as a vital structure along the South Branch Newton Creek.


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Summary

Built in 1917 with a primary purpose of recreation, this earth dam stretches 350 feet in length and reaches a height of 20 feet, providing a storage capacity of 175 acre-feet. Despite its significant hazard potential and poor condition assessment, the dam continues to serve the community with a normal storage capacity of 87 acre-feet and a maximum discharge of 834 cubic feet per second.

Managed by the local government and regulated by the New Jersey Department of Environmental Protection, Haddon Lake Dam undergoes regular inspections with an inspection frequency of 2 years. While the dam lacks an Emergency Action Plan, efforts have been made to update emergency contacts and ensure compliance with safety guidelines. As water resource and climate enthusiasts, it is crucial to monitor the risk assessment and management measures associated with Haddon Lake Dam to safeguard the surrounding areas from potential hazards.

In the face of climate change and increasing water resource challenges, Haddon Lake Dam serves as a reminder of the importance of proper dam maintenance and emergency preparedness. With its historical significance and recreational value, the dam stands as a testament to the intersection of human infrastructure and natural landscapes, urging us to prioritize the sustainability and safety of our water resources for future generations.

Year Completed

1917

Dam Length

350

Dam Height

20

River Or Stream

South Branch Newton Creek

Primary Dam Type

Earth

Surface Area

10

Drainage Area

1.4

Nid Storage

175

Hazard Potential

Significant

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.