Thunder Lake Dam Reservoir Report
Last Updated: December 6, 2025
Thunder Lake Dam, located in Jones, Mississippi, is a privately owned dam regulated by the Mississippi Department of Environmental Quality.
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Summary
Completed in 2000, this 18-foot high dam provides a storage capacity of 31 acre-feet and covers a surface area of 3.5 acres. With a high hazard potential and a moderate risk assessment rating, Thunder Lake Dam is inspected every 5 years and was last assessed as being in satisfactory condition in December 2020.
The dam features an uncontrolled spillway with a width of 2 feet and is designed to handle maximum storage and normal storage levels of 31 and 26 acre-feet respectively. Despite the high hazard potential, Thunder Lake Dam has not required any modifications or emergency action plans to date. However, the risk management measures and guidelines for emergency preparedness are yet to be fully documented and updated. Water resource and climate enthusiasts can appreciate the importance of maintaining and monitoring Thunder Lake Dam to ensure the safety and sustainability of the surrounding area.
As a vital infrastructure for water resource management in the region, Thunder Lake Dam serves as a key component for regulating water flow and storage. Its location and design play a crucial role in mitigating potential risks associated with high hazard potential. By staying vigilant in inspections and risk assessments, the dam owners and regulatory agencies can ensure the continued safety and functionality of Thunder Lake Dam for the benefit of the local community and environment.
Year Completed |
2000 |
Dam Height |
18 |
Surface Area |
3.5 |
Nid Storage |
31 |
Hazard Potential |
High |
Nid Height |
18 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Tallahala Creek At Laurel
|
17cfs |
Tallahala Creek At Waldrup
|
164cfs |
Leaf River Nr Collins
|
349cfs |
Okatoma Creek At Sanford
|
354cfs |
Bogue Homo Nr Richton
|
556cfs |
Chickasawhay River Nr Waynesboro
|
967cfs |
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.
Thunder Lake Dam