Harvey Lake Dam Reservoir Report
Last Updated: December 6, 2025
Harvey Lake Dam in Mississippi is a private earth dam primarily used for recreation purposes.
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Summary
The dam, with a height of 12 feet, has a storage capacity of 60 acre-feet and is classified as an uncontrolled spillway type. Located in Walthall County, the dam is under the jurisdiction of the Mississippi Department of Environmental Quality and is regulated, inspected, and enforced by state agencies to ensure its safety and compliance with environmental standards.
Although the hazard potential and condition assessment of Harvey Lake Dam are currently undetermined and not rated, respectively, the risk assessment is moderate. The dam has not been modified in recent years, and emergency preparedness measures such as an Emergency Action Plan (EAP) have not been reported. With a risk management summary of 'Moderate (3)', it is crucial for stakeholders and authorities to monitor the dam's condition and take necessary precautions to mitigate any potential risks associated with the structure.
Water resource and climate enthusiasts interested in Harvey Lake Dam can appreciate its role in providing recreational opportunities while also acknowledging the importance of maintaining its safety and integrity. As part of the New Orleans District, the dam's operation and management should align with best practices and guidelines to ensure the protection of the surrounding community and environment. Further research and monitoring may be needed to assess and address any potential risks associated with the dam in the future.
Dam Height |
12 |
Nid Storage |
60 |
Hazard Potential |
Undetermined |
Nid Height |
12 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Bogue Chitto Nr Tylertown
|
578cfs |
Tangipahoa River At Osyka
|
478cfs |
Pearl River Nr Columbia
|
2920cfs |
Pearl River Near Bogalusa
|
3740cfs |
Pearl River Nr Monticello
|
2030cfs |
Tickfaw River At Liverpool
|
44cfs |
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.
Harvey Lake Dam