Shamrock Lakes Dam (North) #3 Reservoir Report
Last Updated: December 27, 2025
Shamrock Lakes Dam (North) #3, located in Blackford, Indiana, was completed in 1965 and serves primarily for recreational purposes.
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Summary
This private-owned earth dam stands at a height of 23 feet with a length of 600 feet, providing a maximum storage capacity of 90 acre-feet. The dam overlooks a surface area of 6.71 acres and is situated in a drainage area of 0.08 square miles.
Despite its low hazard potential, Shamrock Lakes Dam (North) #3 has not been inspected since July 1996 and is currently rated as "Not Rated" in terms of condition assessment as of August 2006. The dam poses minimal risk, as it does not fall under state regulation or inspection. With a maximum discharge capacity of 660 cubic feet per second, the dam continues to be a focal point for water resource and climate enthusiasts exploring the recreational opportunities it offers in the region.
While its condition remains unassessed, the dam's historical significance and functionality as a recreational structure make it a noteworthy site for those interested in water resource management and climate-related activities. Shamrock Lakes Dam (North) #3 stands as a testament to the engineering prowess of its time and continues to serve its purpose in providing leisure opportunities for visitors in Blackford, Indiana.
Year Completed |
1965 |
Dam Length |
600 |
Dam Height |
23 |
Primary Dam Type |
Earth |
Surface Area |
6.71 |
Hydraulic Height |
23 |
Drainage Area |
0.08 |
Nid Storage |
90 |
Structural Height |
23 |
Hazard Potential |
Low |
Nid Height |
23 |
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 (North) #3