Big Sand Watershed Structure Y-32-33 Dam Reservoir Report
Last Updated: December 6, 2025
Big Sand Watershed Structure Y-32-33 Dam, also known as Cooper Ranches Dam, is a vital flood risk reduction infrastructure located in North Carrollton, Mississippi.
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Summary
Owned by the local government and designed by the USDA NRCS, this earth dam stands at a height of 20 feet and was completed in 1971. With a storage capacity of 84 acre-feet and a drainage area of 0.39 square miles, this structure plays a crucial role in managing the flow of TR-Sand Creek.
The dam's spillway type is uncontrolled, and it has a low hazard potential with a satisfactory condition assessment as of August 2009. While the primary purpose of the Big Sand Watershed Structure Y-32-33 Dam is flood risk reduction, it also serves as a valuable resource for water management in the region. Despite being a non-USACE structure, it is regulated by the Mississippi Department of Environmental Quality, ensuring its compliance with state standards for safety and maintenance.
Overall, this dam is an essential component of the local water infrastructure, providing protection against flooding and contributing to the sustainable management of water resources in the area. Its moderate risk assessment highlights the importance of ongoing monitoring and maintenance to ensure its continued effectiveness in safeguarding the community and the environment.
Year Completed |
1971 |
Dam Height |
20 |
River Or Stream |
TR- SAND CREEK |
Primary Dam Type |
Earth |
Drainage Area |
0.39 |
Nid Storage |
84 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
20 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Batupan Bogue At Grenada
|
134cfs |
Yalobusha River At Grenada
|
3080cfs |
Tallahatchie River At Money
|
6080cfs |
Abiaca Creek At Cruger
|
44cfs |
Big Black River At West
|
223cfs |
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-32-33 Dam