Muddy Creek Watershed Structure 30 Dam Reservoir Report
Last Updated: December 6, 2025
Muddy Creek Watershed Structure 30 Dam, also known as Muddy Creek Dam 30, is a local government-owned dam located in Walnut, Mississippi.
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Summary
Built in 1976 by the USDA NRCS, this earth dam stands at a height of 18 feet and serves primarily for flood risk reduction along the TR- Muddy Creek. With a storage capacity of 66 acre-feet, it plays a crucial role in managing water flow in the area.
Regulated by the Mississippi Department of Environmental Quality, this dam has a low hazard potential and is currently rated as "Not Rated" in terms of its condition assessment. While it has not been inspected recently, the dam is designed to have uncontrolled spillways and outlets gates, emphasizing its role in flood risk mitigation. The risk assessment for this structure is moderate (3), indicating a need for ongoing monitoring and maintenance.
As part of the larger Memphis District, the Muddy Creek Watershed Structure 30 Dam contributes to the overall water resource management efforts in the region. With its strategic location and purpose, this dam serves as a vital asset in protecting the community from potential flooding events. Its presence highlights the importance of sustainable water infrastructure in addressing climate challenges and ensuring the safety and well-being of local residents.
Year Completed |
1976 |
Dam Height |
18 |
River Or Stream |
TR- MUDDY CREEK |
Primary Dam Type |
Earth |
Drainage Area |
0.11 |
Nid Storage |
66 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
18 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Hatchie River Near Walnut
|
172cfs |
Wolf River At Lagrange
|
223cfs |
Hatchie River At Bolivar
|
933cfs |
Little Tallahatchie River At Etta
|
220cfs |
Wolf River At Rossville
|
508cfs |
Twentymile Creek Nr Guntown
|
36cfs |
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.
Muddy Creek Watershed Structure 30 Dam