Johnsons Lake Dam Reservoir Report
Last Updated: December 13, 2025
Johnson's Lake Dam, located in Johnson Lake Community, Georgia, is a privately owned structure that serves the primary purpose of flood risk reduction along Taylors Creek.
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Summary
Built in 1955 by the Natural Resources Conservation Service, this earth dam stands at a height of 31.4 feet and has a maximum storage capacity of 1621 acre-feet. Despite being classified as having a low hazard potential, the dam has not been given a condition rating as of the last inspection in 2009.
With a spillway type listed as uncontrolled and outlet gates also uncontrolled, Johnson's Lake Dam presents a moderate risk level according to the data available. The dam's emergency action plan status is unclear, with no information provided on its preparedness or meeting of guidelines. Although the risk assessment points to a moderate risk level, the dam's overall condition remains unassessed and its maintenance and management measures are not detailed.
For water resource and climate enthusiasts, Johnson's Lake Dam offers a glimpse into the infrastructure designed to mitigate flood risks in the region. Its construction by the SCS and lack of state regulation raise questions about its oversight and maintenance, while its location within the Johnson Lake Community adds a local dimension to its significance. The dam's history, design, and current risk assessment provide valuable insights for those interested in water management and the impact of climate-related hazards on existing structures.
Year Completed |
1955 |
Dam Length |
1310 |
Dam Height |
31.4 |
River Or Stream |
TAYLORS CREEK |
Primary Dam Type |
Earth |
Surface Area |
70 |
Hydraulic Height |
25.6 |
Nid Storage |
1621 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
31 |
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.
Johnsons Lake Dam