George Gillespie Dam Reservoir Report
Last Updated: December 7, 2025
George Gillespie Dam, located in Simpson, Mississippi, is a privately-owned structure managed by the Mississippi Department of Environmental Quality.
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Summary
This earth dam, with a height of 17 feet and a storage capacity of 82 acre-feet, primarily serves for recreational purposes. The dam features an uncontrolled spillway and is classified as having a low hazard potential with a moderate risk assessment.
Despite its modest size and low hazard potential, George Gillespie Dam plays a crucial role in water resource management and climate resilience in the region. With its state-regulated status and regular inspections, the dam ensures the safety of its surroundings and contributes to the overall environmental health of the area. The dam's location in the Vicksburg District further highlights its significance in the local water infrastructure network.
For water resource and climate enthusiasts, George Gillespie Dam offers a fascinating case study in the intersection of human-made structures and natural ecosystems. Its design, construction, and regulatory oversight provide valuable insights into sustainable dam management practices and the importance of balancing recreational needs with environmental conservation. As a key element in the water management landscape of Mississippi, George Gillespie Dam stands as a testament to the ongoing efforts to safeguard water resources for future generations.
Dam Height |
17 |
Drainage Area |
0.11 |
Nid Storage |
82 |
Hazard Potential |
Low |
Nid Height |
17 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Pearl River Nr Rockport
|
1230cfs |
Strong River At D`Lo
|
286cfs |
Pearl River At Jackson
|
1180cfs |
Lynch Creek At Jackson
|
1100cfs |
Hanging Moss Creek Nr Jackson
|
356cfs |
Pearl River Nr Monticello
|
1640cfs |
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.
George Gillespie Dam