Upper Yocona Ws Str Y-14-17 Dam Reservoir Report
Last Updated: December 5, 2025
The Upper Yocona WS Str Y-14-17 Dam, also known as Y-14-7, is a vital flood risk reduction structure located in Lafayette, Mississippi.
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Summary
Built in 1971 by the USDA NRCS, this earth dam stands at a height of 33 feet and has a storage capacity of 1662 acre-feet. It serves the primary purpose of mitigating flood risks along the Yocona River, protecting the surrounding community from potential water-related disasters.
Managed by the Mississippi Department of Environmental Quality, this dam is state-regulated and inspected regularly to ensure its safety and functionality. While it has a low hazard potential, the risk assessment for the dam is moderate (3), indicating the need for continued monitoring and risk management measures. With an uncontrolled spillway and outlet gates, the Upper Yocona WS Str Y-14-17 Dam plays a crucial role in water resource management and climate resilience efforts in the region.
As a key infrastructure project in the Vicksburg District, this dam showcases the importance of proactive flood risk reduction strategies in safeguarding communities and natural resources. With its unique design and historical significance, the Upper Yocona WS Str Y-14-17 Dam stands as a testament to the collaboration between local government agencies and federal partners in addressing water resource challenges and climate vulnerabilities in Mississippi.
Year Completed |
1971 |
Dam Height |
33 |
River Or Stream |
TR- YOCONA RIVER |
Primary Dam Type |
Earth |
Drainage Area |
3.47 |
Nid Storage |
1662 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
33 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
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.
Upper Yocona Ws Str Y-14-17 Dam