John Black Pond Dam Reservoir Report
Last Updated: December 6, 2025
John Black Pond Dam, located in Holmes, Mississippi, is a privately owned dam regulated by the Mississippi Department of Environmental Quality.
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Summary
The primary purpose of this earth dam, with a height of 20 feet and a storage capacity of 90 acre-feet, is for recreation. Despite being uncontrolled, the dam's hazard potential is currently listed as undetermined, with a moderate risk assessment rating of 3.
The dam, part of the Vicksburg District, has not been rated for condition assessment and lacks emergency action plans. However, it has not been modified in recent years and does not have any associated structures or outlet gates. Although the risk is considered moderate, there are no specific risk management measures in place. Overall, John Black Pond Dam presents an intriguing case study for water resource and climate enthusiasts due to its unique design and regulatory oversight in the state of Mississippi.
As water resource and climate enthusiasts delve into the details of John Black Pond Dam, they will uncover a fascinating story of a privately owned recreational structure that plays a vital role in the local ecosystem. With its modest height and storage capacity, the dam's condition assessment and emergency response preparedness remain areas of concern. The moderate risk assessment adds a layer of complexity to the dam's management and highlights the importance of proactive risk mitigation strategies in the face of potential hazards.
Dam Height |
20 |
Nid Storage |
90 |
Hazard Potential |
Undetermined |
Nid Height |
20 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Harland Creek Nr Howard
|
3340cfs |
Big Black River At West
|
190cfs |
Abiaca Creek At Cruger
|
44cfs |
Yockanookany River Nr Kosciusko
|
54cfs |
Yockanookany River Nr Ofahoma
|
96cfs |
Pearl River Nr Lena
|
532cfs |
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.
John Black Pond Dam