Johnstons Lake Dam Reservoir Report
Last Updated: December 5, 2025
Johnstons Lake Dam in Lowndes, Alabama, is a private earth dam primarily used for recreation and water supply purposes.
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Summary
Situated within the Mobile District of Alabama, this dam holds a significant hazard potential and has not been rated for its condition. Despite not being state-regulated or inspected, it serves as a crucial structure for the surrounding area.
While details about the dam's height, volume, and completion year are not provided, its location at 32.13167 latitude and -86.5 longitude makes it a key feature in the region. Owned privately, Johnstons Lake Dam offers recreational opportunities and contributes to water supply needs. With a lack of state oversight and regulatory agencies involved, the dam's maintenance and safety are essential considerations for those who utilize its benefits.
As climate and water resource enthusiasts, the data on Johnstons Lake Dam sparks curiosity about its history, structural integrity, and impact on the local ecosystem. The presence of a significant hazard potential underscores the importance of monitoring and maintaining this earth dam to prevent potential risks. Further research and analysis into the dam's design, storage capacity, and emergency response preparedness can provide valuable insights into its role in the community and the broader context of water resource management in Alabama.
Primary Dam Type |
Earth |
Hazard Potential |
Significant |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
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.
Johnstons Lake Dam