Ellison Creek Waterhed Structure 4 Dam Reservoir Report
Last Updated: December 7, 2025
Ellison Creek Waterhed Structure 4 Dam, also known as Day Lake, is a crucial flood risk reduction infrastructure located in Edwards, Mississippi.
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Summary
Constructed in 1961 by the USDA NRCS, this earth dam stands at a height of 22 feet and has a storage capacity of 180 acre-feet. The dam, designed with a buttress core type and soil foundation, serves the primary purpose of flood risk reduction along the TR- Ellison Creek.
Managed by the local government and regulated by the Mississippi Department of Environmental Quality, Ellison Creek Waterhed Structure 4 Dam has a low hazard potential and a moderate risk assessment rating. While the dam is currently not rated for its condition assessment, it is inspected, permitted, and enforced by state regulatory agencies. The structure's uncontrolled spillway and outlet gates contribute to its flood risk reduction capabilities, ensuring the safety and protection of the surrounding Yazoo County community.
Water resource and climate enthusiasts will appreciate the vital role that Ellison Creek Waterhed Structure 4 Dam plays in mitigating flood risks and safeguarding the local ecosystem. As part of the flood control infrastructure in the region, this dam stands as a testament to effective water management practices and the collaborative efforts of governmental agencies to protect communities from potential water-related disasters. With its strategic location along Ellison Creek, this dam serves as a critical asset in maintaining the hydrological balance and resilience of the area, highlighting the importance of sustainable water resource management in the face of changing climate conditions.
Year Completed |
1961 |
Dam Height |
22 |
River Or Stream |
TR- ELLISON CREEK |
Primary Dam Type |
Earth |
Drainage Area |
0.45 |
Nid Storage |
180 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
22 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Harland Creek Nr Howard
|
3340cfs |
Big Black River Nr Bentonia
|
514cfs |
Yockanookany River Nr Ofahoma
|
86cfs |
Pearl River Nr Lena
|
624cfs |
Hanging Moss Creek Nr Jackson
|
356cfs |
Big Black River At West
|
176cfs |
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.
Ellison Creek Waterhed Structure 4 Dam