C G Thomas Lake Dam Reservoir Report
Last Updated: December 9, 2025
C G Thomas Lake Dam, located in Yazoo, Mississippi, is a private dam with a primary purpose of recreation.
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Summary
Built in 1962 by the USDA NRCS, this earth dam stands at a height of 20 feet and has a storage capacity of 152 acre-feet. Situated on TR- Pickett Creek, this dam is regulated by the Mississippi Department of Environmental Quality and is subject to state permitting, inspection, and enforcement. Despite its low hazard potential, the dam is rated as having a moderate risk level.
The dam features an uncontrolled spillway and outlet gates, with an overall buttress core structure resting on a soil foundation. While the dam is not currently rated for its condition, it is regularly inspected and regulated to ensure its safety and integrity. The surrounding area offers recreational opportunities for enthusiasts, making C G Thomas Lake Dam a popular destination for water resource and climate enthusiasts looking to enjoy the beauty of nature in Mississippi's countryside.
Year Completed |
1962 |
Dam Height |
20 |
River Or Stream |
TR- PICKETT CREEK |
Primary Dam Type |
Earth |
Nid Storage |
152 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
20 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Big Black River Nr Bentonia
|
529cfs |
Hanging Moss Creek Nr Jackson
|
356cfs |
Harland Creek Nr Howard
|
3340cfs |
Yockanookany River Nr Ofahoma
|
89cfs |
Lynch Creek At Jackson
|
1100cfs |
Pearl River At Jackson
|
1010cfs |
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.
C G Thomas Lake Dam