Griffis Lake Dam Reservoir Report
Nearby: Ms04273 Lake Dam Ms04274 Lake Dam
Last Updated: December 11, 2025
Griffis Lake Dam in Yazoo, Mississippi, is a privately owned structure with a primary purpose of recreation.
°F
°F
mph
Wind
%
Humidity
Summary
This earth dam, with a buttress core type, stands at a height of 12 feet and has a storage capacity of 63 acre-feet. The dam is regulated by the Mississippi Department of Environmental Quality, ensuring that it meets state inspection and enforcement standards for safety and compliance.
Despite its low hazard potential, the dam is considered to have a moderate risk level, warranting attention to risk management measures. While the dam's condition is currently not rated, it is reassuring to know that it meets state permitting and inspection requirements. With its uncontrolled spillway type and no associated structures, Griffis Lake Dam remains a focal point for water resource and climate enthusiasts interested in the intersection of recreation, regulation, and risk assessment in dam infrastructure.
Dam Height |
12 |
Nid Storage |
63 |
Hazard Potential |
Low |
Nid Height |
12 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Big Black River Nr Bentonia
|
392cfs |
Hanging Moss Creek Nr Jackson
|
356cfs |
Harland Creek Nr Howard
|
3340cfs |
Lynch Creek At Jackson
|
1100cfs |
Pearl River At Jackson
|
362cfs |
Yockanookany River Nr Ofahoma
|
73cfs |
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.
Griffis Lake Dam