Johnson Lake Ms01262 Dam Reservoir Report
Nearby: Ms05565 Lake Dam Ms05566 Lake Dam
Last Updated: December 8, 2025
Johnson Lake Ms01262 Dam in Rankin, Mississippi, is a privately owned earth dam with a primary purpose of recreation.
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Summary
The dam stands at a height of 16 feet and has a storage capacity of 120 acre-feet. The dam is regulated by the Mississippi Department of Environmental Quality and is inspected and enforced by state authorities.
Located within the Mobile District of the US Army Corps of Engineers, Johnson Lake Dam has an uncontrolled spillway type with a low hazard potential. Despite being classified as not rated in terms of condition assessment, the dam poses a moderate risk with a risk assessment score of 3. While the dam has not been modified in recent years and lacks certain details like completion year and inspection frequency, its presence ensures a valuable resource for water enthusiasts and climate advocates in the area.
For water resource and climate enthusiasts, Johnson Lake Ms01262 Dam offers a glimpse into the management and regulation of a recreational earth dam in Mississippi. With its moderate risk assessment and low hazard potential, the dam serves as a focal point for understanding the importance of maintaining and inspecting such structures. While lacking certain details like a condition assessment rating and inspection frequency, the dam's presence highlights the need for continual monitoring and risk management in safeguarding water resources and recreational areas.
Dam Height |
16 |
Nid Storage |
120 |
Hazard Potential |
Low |
Nid Height |
16 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Hanging Moss Creek Nr Jackson
|
356cfs |
Strong River At D`Lo
|
179cfs |
Pearl River At Jackson
|
1010cfs |
Lynch Creek At Jackson
|
1100cfs |
Pearl River Nr Lena
|
576cfs |
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.
Johnson Lake Ms01262 Dam