Miller Lake Dam Reservoir Report
Last Updated: December 21, 2025
Miller Lake Dam, located in the Prudhomme Community of St.
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Summary
Landry, Louisiana, stands as a testament to engineering ingenuity and natural beauty. Built in 1954 by designer Jimmy Miller, this private dam serves primarily for recreational purposes, offering a serene escape for water resource and climate enthusiasts alike. Situated along the picturesque Bayou Mallet, the dam boasts an earth core with buttress and stone structures, reaching a height of 7 feet and spanning 5640 feet in length.
Despite its age, Miller Lake Dam continues to provide a vital recreational resource for the surrounding community, with a storage capacity of 308 acre-feet and a surface area of 44 acres. While the dam's hazard potential is classified as low, its overall condition assessment is deemed poor, underscoring the need for ongoing maintenance and monitoring. With its uncontrolled spillway and moderate risk assessment rating, the dam presents a unique opportunity for environmental stewardship and conservation efforts in the region.
As climate change continues to impact water resources globally, Miller Lake Dam serves as a microcosm of the delicate balance between human development and ecological sustainability. With state regulation and inspection in place, the dam represents a collaborative effort between public and private entities to ensure the safety and longevity of this vital water infrastructure. For water resource and climate enthusiasts, Miller Lake Dam stands as a symbol of resilience and adaptability in the face of evolving environmental challenges, beckoning visitors to appreciate and protect the natural wonders of Louisiana's landscape.
Year Completed |
1954 |
Dam Length |
5640 |
Dam Height |
7 |
River Or Stream |
BAYOU MALLET |
Primary Dam Type |
Earth |
Surface Area |
44 |
Hydraulic Height |
6 |
Drainage Area |
2 |
Nid Storage |
308 |
Structural Height |
7 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
7 |
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.
Miller Lake Dam