Morrow Lake Dam Reservoir Report
Last Updated: December 11, 2025
Morrow Lake Dam in Pearl, Mississippi, stands as a testament to the importance of water resource management and climate resilience.
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Summary
Built in 1950 by the USDA NRCS, this private dam on the TR- TUMBALOO CREEK serves primarily for recreation purposes, offering a tranquil haven for outdoor enthusiasts. With a height of 20 feet and a storage capacity of 160 acre-feet, Morrow Lake Dam plays a crucial role in regulating water flow and maintaining the ecological balance in the region.
Managed by the Mississippi Department of Environmental Quality, Morrow Lake Dam has a low hazard potential and is currently rated as "Not Rated" in terms of condition assessment. Despite its moderate risk level, the dam stands as a symbol of responsible infrastructure development and effective risk management. With uncontrolled spillways and outlet gates, the dam demonstrates a commitment to safety and emergency preparedness, ensuring that it continues to serve the community in a sustainable and reliable manner.
As climate change poses increasing challenges to water resources, Morrow Lake Dam exemplifies the importance of proactive monitoring and maintenance. With a focus on risk assessment and management, the dam remains a vital asset in the face of changing environmental conditions. As water resource and climate enthusiasts, we can draw inspiration from Morrow Lake Dam's resilience and commitment to sustainable water management practices.
Year Completed |
1950 |
Dam Height |
20 |
River Or Stream |
TR- TUMBALOO CREEK |
Primary Dam Type |
Earth |
Nid Storage |
160 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
20 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Pearl River At Jackson
|
362cfs |
Strong River At D`Lo
|
108cfs |
Hanging Moss Creek Nr Jackson
|
356cfs |
Lynch Creek At Jackson
|
1100cfs |
Pearl River Nr Rockport
|
775cfs |
Pearl River Nr Lena
|
448cfs |
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.
Morrow Lake Dam