George Posey Lake Dam Reservoir Report
Last Updated: December 6, 2025
George Posey Lake Dam, located in Neshoba, Mississippi, is a privately owned earth dam constructed in 1953 by the USDA NRCS.
°F
°F
mph
Wind
%
Humidity
Summary
The dam, with a height of 15 feet and a storage capacity of 360 acre-feet, serves a primary purpose of recreation along the TR- TALLASHUA river. Despite being uncontrolled, the spillway type is designated as 'Uncontrolled' with a low hazard potential rating.
Managed by the Mississippi Department of Environmental Quality, the dam is subject to state regulations, inspections, and enforcement. The risk assessment for George Posey Lake Dam is moderate, indicating a level 3 risk. The dam has not been rated for its condition assessment, and emergency action plans are yet to be prepared. The dam site is under the jurisdiction of the Vicksburg District and falls under the congressional representation of Michael Guest (R).
Enthusiasts of water resources and climate will find George Posey Lake Dam an intriguing subject due to its historical significance, recreational purpose, and regulatory oversight. The dam's design and construction by the Natural Resources Conservation Service highlight the importance of sustainable water management practices in the region. With a moderate risk assessment and low hazard potential, ongoing monitoring and maintenance are essential to ensure the safety and integrity of this vital water resource infrastructure in Mississippi.
Year Completed |
1953 |
Dam Height |
15 |
River Or Stream |
TR- TALLASHUA |
Primary Dam Type |
Earth |
Nid Storage |
360 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
15 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Pearl River At Burnside
|
1070cfs |
Pearl River At Edinburg
|
202cfs |
Chunky River Nr Chunky
|
301cfs |
Sowashee Creek At Meridian
|
16cfs |
Tuscolameta Creek At Walnut Grove
|
401cfs |
South Canal Tuscolameta Creek Nr Walnut Grove
|
8cfs |
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 Posey Lake Dam