Big Sand Watershed Structure Y-32-11 Dam Reservoir Report
Last Updated: December 5, 2025
The Big Sand Watershed Structure Y-32-11 Dam, also known as Walker Lake, is a significant earth dam located in North Carrollton City Center, Mississippi.
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Summary
Constructed in 1966 by the USDA NRCS, this dam serves as a crucial flood risk reduction measure for the area, with a primary purpose of mitigating the potential impact of flooding events in the region. The dam has a height of 43.5 feet and a storage capacity of 2305 acre-feet, making it an essential structure for water resource management in the Magic Creek watershed.
Despite its important role in flood risk reduction, the Big Sand Watershed Structure Y-32-11 Dam is currently rated as having a high hazard potential and an unsatisfactory condition. Regular inspections are conducted to ensure the dam's safety and effectiveness, with the last assessment taking place in September 2020. While the dam has not been modified in recent years, its risk assessment indicates a moderate level of risk, prompting the need for continued monitoring and potential risk management measures to safeguard the surrounding area from potential hazards associated with dam failure.
As climate change continues to impact the frequency and intensity of extreme weather events, structures like the Big Sand Watershed Structure Y-32-11 Dam play a crucial role in protecting communities and ecosystems from the threats of flooding. With its state-regulated status and oversight by the Mississippi Department of Environmental Quality, the dam remains a vital component of water resource management in the region, highlighting the importance of ongoing maintenance and risk mitigation efforts to ensure its continued effectiveness in safeguarding the local area.
Year Completed |
1966 |
Dam Length |
1161 |
Dam Height |
43.5 |
River Or Stream |
MAGIC CREEK |
Primary Dam Type |
Earth |
Surface Area |
106.6 |
Drainage Area |
7.91 |
Nid Storage |
2305 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
High |
Foundations |
Soil |
Nid Height |
44 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Batupan Bogue At Grenada
|
134cfs |
Yalobusha River At Grenada
|
3080cfs |
Tallahatchie River At Money
|
6080cfs |
Big Black River At West
|
223cfs |
Abiaca Creek At Cruger
|
44cfs |
Harland Creek Nr Howard
|
3340cfs |
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.
Big Sand Watershed Structure Y-32-11 Dam