Jack Harris Dam Reservoir Report
Last Updated: January 12, 2026
Jack Harris Dam, located in Wilkinson, Mississippi, is a privately owned structure designed by the USDA NRCS and completed in 1993.
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Summary
This earth dam, with a height of 35 feet and a length of 300 feet, serves primarily for recreation purposes, offering a storage capacity of 93 acre-feet. The dam overlooks the UNT of Pinckneyville Creek and is regulated and inspected by the Mississippi Department of Environmental Quality, ensuring its safety and compliance with state regulations.
With a low hazard potential and a moderate risk assessment rating, Jack Harris Dam provides a safe and enjoyable recreational environment for visitors. The dam features an uncontrolled spillway and outlet gates, maintaining the water levels within the designated storage capacity of 58 acre-feet. While the dam is not currently rated for its condition, regular inspections and enforcement by the state regulatory agency help to ensure its continued functionality and safety for water resource and climate enthusiasts alike.
Overall, Jack Harris Dam offers a picturesque setting for outdoor activities and water recreation in the heart of Mississippi. With its serene location, well-maintained structure, and state oversight, the dam provides a valuable resource for the community while also serving as a reminder of the importance of responsible water management in the face of changing climate conditions.
Year Completed |
1993 |
Dam Length |
300 |
Dam Height |
35 |
River Or Stream |
UNT OF PINCKNEYVILLE CREEK |
Primary Dam Type |
Earth |
Surface Area |
6 |
Drainage Area |
3.36 |
Nid Storage |
93 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
35 |
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.
Jack Harris Dam