Lacy Lake Dam Reservoir Report
Nearby: Bayou Dupont No 9 Rawls Dam
Last Updated: December 7, 2025
Lacy Lake Dam, located in the Shady Grove Community of Natchitoches, Louisiana, stands as a testament to sustainable water resource management.
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Summary
Built in 1953 by the USDA NRCS, this private dam serves multiple purposes, including fish and wildlife pond, fire protection, stock, and recreation. With a height of 17 feet and a length of 1375 feet, the dam has a storage capacity of 110 acre-feet and a surface area of 13 acres.
Despite its low hazard potential, the dam's condition assessment was rated as unsatisfactory during the last inspection in October 2020. However, it remains regulated by the Louisiana Department of Transportation and Development, with state permitting, inspection, and enforcement in place. The dam features an uncontrolled spillway with a width of 75 feet, ensuring a maximum discharge of 1988 cubic feet per second. While the risk assessment is moderate, further risk management measures may be required to ensure the long-term safety and functionality of Lacy Lake Dam for the benefit of the local community and environment.
Year Completed |
1953 |
Dam Length |
1375 |
Dam Height |
17 |
River Or Stream |
UNNAMED |
Primary Dam Type |
Earth |
Surface Area |
13 |
Hydraulic Height |
17 |
Drainage Area |
0.1 |
Nid Storage |
110 |
Structural Height |
20 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
20 |
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.
Lacy Lake Dam