Cedar Lake Dam Reservoir Report
Last Updated: December 5, 2025
Located in Lawrence Township, New Jersey, Cedar Lake Dam stands as a vital structure along Cedar Creek, serving primarily for recreational purposes.
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Summary
With a height of 12 feet and a length of 700 feet, the dam holds a storage capacity of 100 acre-feet and covers a surface area of 26 acres. Despite its significant hazard potential and poor condition assessment, the dam is regulated by the New Jersey Department of Environmental Protection (NJDEP) and undergoes regular inspections to ensure public safety.
With a history dating back to an unspecified completion year, Cedar Lake Dam continues to play a crucial role in managing the flow of Cedar Creek and providing recreational opportunities for local residents and visitors. Although lacking certain design and construction information, the dam's earth and gravity structure has withstood the test of time, demonstrating its importance in the community. However, its current condition assessment and hazard potential highlight the need for ongoing maintenance and risk management measures to ensure the safety and integrity of the structure.
As part of the Baltimore District of the US Army Corps of Engineers, Cedar Lake Dam remains a focal point in water resource management and climate resilience efforts in Cumberland County, New Jersey. With Congressman Jeff Van Drew representing the area in Congressional District 02, the dam's role in flood control, water supply, and recreational activities underscores its significance in the region. As climate change continues to impact water resources, the maintenance and regulation of structures like Cedar Lake Dam will be essential in safeguarding communities and natural environments for future generations.
Dam Length |
700 |
Dam Height |
12 |
River Or Stream |
Cedar Creek |
Primary Dam Type |
Earth |
Surface Area |
26 |
Drainage Area |
6 |
Nid Storage |
100 |
Hazard Potential |
Significant |
Nid Height |
12 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Cohansey River At Seeley Nj
|
20cfs |
Maurice River At Norma Nj
|
93cfs |
Tuckahoe River At Head Of River Nj
|
46cfs |
St Jones River At Dover
|
17cfs |
Murderkill River At Bowers
|
493cfs |
Salem River At Woodstown Nj
|
7cfs |
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.
Cedar Lake Dam
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