Locks Ws Str Lt-9a-3 Dam Reservoir Report
Nearby: Spencer Lake Dam Springdale Lake
Last Updated: December 6, 2025
Locks WS Str Lt-9a-3 Dam, located in Old Myrtle, Mississippi, is a key structure managed by the local government for flood risk reduction.
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Summary
Built in 1968 by the USDA NRCS, this earth dam stands at a height of 28 feet and has a storage capacity of 2518 acre-feet. It is regulated by the Mississippi Department of Environmental Quality and meets state jurisdiction, permitting, inspection, and enforcement requirements.
The dam, also known as Lt-9a-3, is associated with TR- Locks Creek and Cane Creek, contributing to flood control in the region. Despite its uncontrolled spillway and outlet gates, the dam has a low hazard potential and is currently in satisfactory condition as of the last assessment in 2011. The risk assessment for the structure is moderate, with a DSAC risk rating of 3, indicating the need for ongoing monitoring and risk management measures.
Overall, Locks WS Str Lt-9a-3 Dam plays a crucial role in mitigating flood risks in Union County, Mississippi, and demonstrates effective collaboration between local and state agencies in managing water resources. As a significant structure in the Vicksburg District, it serves as a reminder of the importance of sustainable water resource management and climate resilience in the face of changing environmental conditions.
Year Completed |
1968 |
Dam Height |
28 |
River Or Stream |
TR- LOCKS CREEK; CANE CREEK |
Primary Dam Type |
Earth |
Drainage Area |
6.14 |
Nid Storage |
2518 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
28 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Little Tallahatchie River At Etta
|
156cfs |
Yocona River Nr Oxford
|
96cfs |
Town Creek At Eason Boulevard At Tupelo
|
65cfs |
Wolf River At Lagrange
|
227cfs |
Hatchie River Near Walnut
|
153cfs |
Twentymile Creek Nr Guntown
|
23cfs |
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.
Locks Ws Str Lt-9a-3 Dam