Lake Adahy Dam Reservoir Report
Nearby: Ms07219 Lake Dam Ms06782 Lake Dam
Last Updated: December 6, 2025
Lake Adahy Dam, located in Jefferson, Mississippi, is a privately owned earth dam completed in 2017 with a primary purpose of recreation.
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Summary
Standing at a height of 20 feet and with a hydraulic height of 21 feet, the dam boasts a structural height of 25 feet and a length of 325 feet. The dam holds a maximum storage capacity of 41.61 acre-feet and a normal storage capacity of 39.2 acre-feet, covering a surface area of 3.92 acres.
Despite being classified as having a low hazard potential and a moderate risk assessment, Lake Adahy Dam has not been rated for its condition. It is not regulated or inspected by the state, and no emergency action plan (EAP) has been prepared for the dam. With an uncontrolled spillway type and a maximum discharge of 5.41 cubic feet per second, the dam presents a moderate risk that necessitates closer monitoring and potential risk management measures to ensure the safety of the surrounding area and its water resources.
For water resource and climate enthusiasts, Lake Adahy Dam is a fascinating structure that provides recreational opportunities while also posing a moderate risk due to its lack of state regulation and inspection. As the dam continues to age, it will be important for the owners to prioritize safety measures and conduct regular assessments to prevent any potential hazards. With its serene location on Hurricane Creek, this dam serves as a reminder of the delicate balance between water infrastructure development and environmental conservation in the face of changing climate conditions.
Year Completed |
2017 |
Dam Length |
325 |
Dam Height |
20 |
River Or Stream |
HURRICANE CREEK |
Primary Dam Type |
Earth |
Surface Area |
3.92 |
Hydraulic Height |
21 |
Nid Storage |
41.61 |
Structural Height |
25 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
25 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Homochitto River At Eddiceton
|
94cfs |
Bayou Pierre Nr Willows
|
611cfs |
Homochitto River At Rosetta
|
923cfs |
Pearl River Nr Rockport
|
1230cfs |
Pearl River Nr Monticello
|
1640cfs |
Mississippi River At Vicksburg
|
325000cfs |
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.
Lake Adahy Dam