Greensburg Lake Reservoir Report
Last Updated: December 5, 2025
Greensburg Lake, located in Decatur County, Indiana, is a state-owned reservoir primarily used for recreation purposes.
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Summary
Built in 1938, this earth dam structure stands at 12 feet high and spans a length of 2133 feet, with a maximum storage capacity of 154 acre-feet. The lake covers a surface area of 22.06 acres and has a drainage area of 1.43 square miles, serving as a popular spot for outdoor activities such as boating, fishing, and picnicking.
Despite its age, Greensburg Lake has been deemed to have significant hazard potential, although its condition assessment remains unrated. The last inspection conducted on the dam was in March 2011, with an inspection frequency of 0. While the lake does not fall under state jurisdiction for regulation, permitting, inspection, or enforcement, it continues to be a vital water resource for the local community and a serene natural oasis for visitors to enjoy. With its picturesque surroundings and recreational opportunities, Greensburg Lake remains a cherished destination for water resource and climate enthusiasts alike.
Year Completed |
1938 |
Dam Length |
2133 |
Dam Height |
12 |
Primary Dam Type |
Earth |
Surface Area |
22.06 |
Drainage Area |
1.43 |
Nid Storage |
154 |
Hazard Potential |
Significant |
Nid Height |
12 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Flatrock River At St. Paul
|
86cfs |
Clifty Creek At Hartsville
|
27cfs |
Brush Creek Near Nebraska
|
2cfs |
Haw Creek Near Clifford
|
11cfs |
Big Blue River At Shelbyville
|
115cfs |
Flatrock River At Columbus
|
178cfs |
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.
Greensburg Lake