Fishko Dam #2 Reservoir Report
Nearby: Duerson Dam Fishko Dam #3
Last Updated: December 6, 2025
Fishko Dam #2, located in Fall River, South Dakota, is a privately owned earth dam that was completed in 1968.
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Summary
The dam stands at a height of 28 feet and spans a length of 780 feet, with a storage capacity of 67 acre-feet. Situated on TR-Hat Creek, the dam is regulated by the South Dakota Department of Environment and Natural Resources (DENR) and is subject to state permitting, inspection, and enforcement.
Despite being classified as having a low hazard potential, Fishko Dam #2 has not been rated for its condition assessment. The dam does not currently have an emergency action plan in place, raising concerns about its preparedness for potential risks and emergencies. With a maximum discharge capacity of 1100 cubic feet per second, it is crucial for stakeholders to prioritize the safety and maintenance of this essential water resource infrastructure to ensure the protection of downstream communities and ecosystems.
With its association with the Natural Resources Conservation Service and location within the Omaha District of the US Army Corps of Engineers, Fishko Dam #2 serves as a critical component of water resource management in the region. As climate change continues to impact water availability and quality, the proper maintenance and regulation of dams like Fishko Dam #2 are vital for ensuring the sustainable management of water resources and adapting to the challenges posed by a changing climate.
Year Completed |
1968 |
Dam Length |
780 |
Dam Height |
28 |
River Or Stream |
TR-HAT CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
28 |
Nid Storage |
67 |
Hazard Potential |
Low |
Nid Height |
28 |
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.
Fishko Dam #2