Flood Water Retarding Structure Site 30 Reservoir Report
Last Updated: December 6, 2025
Flood Water Retarding Structure Site 30, also known as Fwrs #30, is a Federal-owned structure located in Holmes County, Mississippi.
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Summary
Completed in 2001 by the US Army Corps of Engineers, this Earth-type dam stands at a height of 42 feet and has a maximum storage capacity of 3993 acre-feet. With a primary purpose of flood risk reduction, it plays a crucial role in managing water levels along the Black Creek-TR stream and protecting the surrounding area from potential flooding events.
The dam is equipped with an uncontrolled spillway measuring 200 feet in width to manage excess water flow and prevent overtopping during high-volume discharge events. Regular inspections and maintenance efforts are conducted by the US Army Corps of Engineers to ensure the structural integrity of the dam and mitigate any potential hazards. In the event of an emergency, an Emergency Action Plan (EAP) is in place, meeting guidelines and updated periodically to address any risks associated with the dam and facilitate coordinated responses with local emergency management agencies.
Overall, Flood Water Retarding Structure Site 30 serves as a critical infrastructure asset in the region, providing flood protection and water management capabilities to safeguard the community against potential risks. Through proactive risk management measures, continuous monitoring, and public engagement efforts, the US Army Corps of Engineers is committed to ensuring the safety and resilience of the dam, enhancing preparedness, and response capabilities in the face of potential dam-related emergencies.
Year Completed |
2001 |
Dam Length |
1384 |
Dam Height |
42 |
River Or Stream |
BLACK CREEK-TR |
Primary Dam Type |
Earth |
Surface Area |
72 |
Hydraulic Height |
36 |
Drainage Area |
5 |
Nid Storage |
3993 |
Structural Height |
50 |
Hazard Potential |
Significant |
Foundations |
Soil |
Nid Height |
50 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Big Black River At West
|
190cfs |
Harland Creek Nr Howard
|
3340cfs |
Abiaca Creek At Cruger
|
44cfs |
Yockanookany River Nr Kosciusko
|
54cfs |
Yockanookany River Nr Ofahoma
|
96cfs |
Tallahatchie River At Money
|
5720cfs |
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.
Flood Water Retarding Structure Site 30