Marlton Lakes Upper Dam Reservoir Report

Last Updated: December 14, 2025

Marlton Lakes Upper Dam, located in Evesham Township, New Jersey, is a privately owned earth dam built in 1940 primarily for recreational purposes.


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Summary

The dam stands at a height of 12 feet and spans 1300 feet in length, creating a reservoir with a normal storage capacity of 100 acre-feet. Situated on Kettle Run, the dam is classified as having a significant hazard potential but is currently assessed as being in satisfactory condition as of the last inspection in April 2020.

Managed by the New Jersey Department of Environmental Protection (NJDEP), Marlton Lakes Upper Dam is subject to state regulations, permitting, inspections, and enforcement to ensure its safety and compliance with guidelines. The dam is crucial for providing recreational opportunities in the area and serves as a vital water resource for the community. With its picturesque location and historical significance, the dam offers a unique blend of natural beauty and engineering marvel for water resource and climate enthusiasts to appreciate.

Despite its age, Marlton Lakes Upper Dam continues to be a well-maintained structure with regular inspection schedules to monitor its condition and address any potential risks. With its significant hazard potential, the dam plays a crucial role in flood control and water management in the region, highlighting the importance of maintaining and preserving such essential infrastructure for the benefit of the community and the environment.

Year Completed

1940

Dam Length

1300

Dam Height

12

River Or Stream

Kettel Run

Primary Dam Type

Earth

Surface Area

50

Drainage Area

1.4

Nid Storage

100

Hazard Potential

Significant

Nid Height

12
       
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.