Leona Lake Dam Reservoir Report
Last Updated: December 16, 2025
Leona Lake Dam, located in Morgan County, Indiana, is a privately owned earth dam built in 1950 by the USDA NRCS for recreational purposes.
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Summary
Standing at a height of 19 feet and stretching 430 feet in length, this dam holds a storage capacity of 103 acre-feet and serves as a crucial water resource along Sinking Creek. Despite its significant hazard potential and poor condition assessment, the dam is regulated by the Indiana Department of Natural Resources and undergoes regular inspections to ensure public safety.
The dam's spillway type is uncontrolled, with a maximum discharge capacity of 321 cubic feet per second. The surrounding area covers 9 acres, with a drainage area of 0.5 square miles. While lacking outlet gates, the dam presents a moderate risk level and is associated with the Louisville District of the US Army Corps of Engineers. With its scenic location in the city of WISER, Leona Lake Dam continues to be a popular destination for outdoor enthusiasts and climate activists alike, highlighting the importance of sustainable water resource management in the region.
Year Completed |
1950 |
Dam Length |
430 |
Dam Height |
19 |
River Or Stream |
SINKING CREEK |
Primary Dam Type |
Earth |
Surface Area |
9 |
Hydraulic Height |
19 |
Drainage Area |
0.5 |
Nid Storage |
103 |
Structural Height |
19 |
Outlet Gates |
None |
Hazard Potential |
Significant |
Foundations |
Rock, Soil |
Nid Height |
19 |
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.
Leona Lake Dam