Green Lake Dam Reservoir Report

Last Updated: December 6, 2025

Green Lake Dam in Mississippi, completed in 1978, stands as a testament to engineering prowess in the realm of water resource management.


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Summary

Designed by Bobby Massey, this privately-owned earth dam on Black Creek serves primarily for recreation purposes, offering a serene oasis for outdoor enthusiasts in Holmes County. With a height of 16 feet and a storage capacity of 129 acre-feet, the dam provides a tranquil surface area of 11 acres for leisure activities like fishing and boating.

Despite its uncontrolled spillway and low hazard potential, Green Lake Dam has a moderate risk assessment due to its location and structural characteristics. The Mississippi Department of Environmental Quality oversees its regulation, inspection, and enforcement to ensure public safety and environmental compliance. While the dam's condition assessment is currently not rated, its historical significance in the local landscape warrants ongoing monitoring and risk management measures for sustainable water resource utilization.

For water resource and climate enthusiasts, Green Lake Dam offers a captivating blend of natural beauty and human ingenuity. Situated in the Vicksburg District, this earth dam symbolizes the harmonious coexistence of recreational activities with environmental stewardship. As climate change impacts water availability and quality, understanding the role of structures like Green Lake Dam becomes paramount in mitigating risks and adapting to changing hydrological conditions.

Year Completed

1978

Dam Length

625

Dam Height

16

River Or Stream

UNT OF BLACK CREEK

Primary Dam Type

Earth

Surface Area

11

Hydraulic Height

11

Drainage Area

0.15

Nid Storage

129

Structural Height

17

Outlet Gates

Uncontrolled

Hazard Potential

Low

Foundations

Soil

Nid Height

17
       
Seasonal Comparison

Weather Forecast

Dam Data Reference

Condition Assessment

Satisfactory
No 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

High
Dams 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.