Shamrock Lakes Dam (South) #2 Reservoir Report
Last Updated: December 27, 2025
Shamrock Lakes Dam (South) #2 is a privately owned earth dam located in Blackford, Indiana, completed in 1965 for recreational purposes.
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Summary
Standing at 18 feet tall and stretching 630 feet in length, it provides a storage capacity of 71 acre-feet, with a normal storage level of 38 acre-feet. With a surface area of 7 acres and draining an area of 0.09 square miles, the dam has a maximum discharge capacity of 111 cubic feet per second.
Despite being in operation for over 50 years, the dam's condition has not been rated, and its hazard potential remains undetermined. The last inspection took place in July 1996, and the dam has not been regularly inspected since then. While there are no associated structures or specific risk management measures documented, the dam continues to serve its recreational purpose for the local community in Indiana. Water resource and climate enthusiasts are encouraged to keep an eye on any future developments or updates regarding Shamrock Lakes Dam (South) #2 to ensure its continued safety and functionality.
Year Completed |
1965 |
Dam Length |
630 |
Dam Height |
18 |
Primary Dam Type |
Earth |
Surface Area |
7 |
Drainage Area |
0.09 |
Nid Storage |
71 |
Hazard Potential |
Undetermined |
Nid Height |
18 |
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.
Shamrock Lakes Dam (South) #2