L J Denny Lake Dam Reservoir Report
Last Updated: December 21, 2025
Located in Sibley, Mississippi, the L J Denny Lake Dam is a privately-owned structure built in 1968 for recreational purposes along the Colohill Bayou.
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Summary
Designed by the USDA NRCS, this earth dam stands at a height of 22 feet and has a storage capacity of 180 acre-feet. Despite being classified as having a low hazard potential, the dam is regulated by the Mississippi Department of Environmental Quality, ensuring that it meets state inspection and enforcement standards.
With an uncontrolled spillway and outlet gates, the dam presents a moderate risk level according to the data provided. While the condition assessment is listed as "Not Rated," the dam has not undergone recent inspections or assessments. The dam's design, construction, and regulatory oversight fall under the Natural Resources Conservation Service, showcasing a collaboration between federal and state agencies to manage and maintain this recreational water resource effectively. Enthusiasts of water resources and climatic factors would find the L J Denny Lake Dam an intriguing case study in dam infrastructure and management within the Mississippi region.
Year Completed |
1968 |
Dam Height |
22 |
River Or Stream |
COLOHILL BAYOU |
Primary Dam Type |
Earth |
Nid Storage |
180 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
22 |
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.
L J Denny Lake Dam