Black Watershed Structure Y-36-21 Dam Reservoir Report
Last Updated: December 7, 2025
Black Watershed Structure Y-36-21 Dam, also known as Carroll Dam, is a local government-owned structure located in Holmes, Mississippi.
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Summary
Built in 1963 by the USDA NRCS, this Earth-type dam serves the primary purpose of flood risk reduction along the TR- BOPHUMPA CREEK. With a height of 38 feet and a storage capacity of 1144 acre-feet, the dam plays a crucial role in managing water resources in the area.
Managed by the Mississippi Department of Environmental Quality, Black Watershed Structure Y-36-21 Dam is state-regulated and undergoes regular inspections, enforcement, and permitting to ensure its safety and effectiveness. The dam has a low hazard potential and is currently rated as not assessed. Despite its age, the dam is considered to have a moderate risk level, highlighting the importance of ongoing risk assessment and management measures.
Overall, Black Watershed Structure Y-36-21 Dam is a vital component of the local water infrastructure, providing flood risk reduction benefits to the surrounding community. As climate change continues to impact water resources, the management and maintenance of dams like Black Watershed Structure Y-36-21 will be crucial in ensuring the resilience and sustainability of the region's water systems.
Year Completed |
1963 |
Dam Height |
38 |
River Or Stream |
TR- BOPHUMPA CREEK |
Primary Dam Type |
Earth |
Drainage Area |
2.83 |
Nid Storage |
1144 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
38 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Harland Creek Nr Howard
|
3340cfs |
Abiaca Creek At Cruger
|
44cfs |
Big Black River At West
|
176cfs |
Yockanookany River Nr Kosciusko
|
54cfs |
Tallahatchie River At Money
|
5520cfs |
Big Sunflower River At Sunflower
|
1030cfs |
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.
Black Watershed Structure Y-36-21 Dam