Falk Dam Reservoir Report
Nearby: Charles Hyde H.C. Calhoun
Last Updated: December 11, 2025
Falk Dam, located in Hughes County, South Dakota, is a privately owned earth dam completed in 1999.
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Summary
With a height of 27 feet and a storage capacity of 240 acre-feet, this dam plays a crucial role in managing water resources in the area. The dam is regulated by the South Dakota Department of Agriculture and Natural Resources, ensuring that it meets state standards for inspection, enforcement, and permitting.
Despite its low hazard potential, Falk Dam is considered to have a moderate risk level, indicating the need for ongoing risk assessment and management. The dam features an uncontrolled spillway with a width of 50 feet and is designed to handle a maximum discharge of 1450 cubic feet per second. While the dam's condition is currently rated as "Not Rated," regular inspections are conducted to ensure its continued safety and functionality. Overall, Falk Dam serves as a vital infrastructure for water resource management and climate resilience in the region, highlighting the importance of proper maintenance and risk mitigation measures.
Year Completed |
1999 |
Dam Length |
530 |
Dam Height |
27 |
River Or Stream |
TRIB. MISSONot RatedI RIVER |
Primary Dam Type |
Earth |
Hydraulic Height |
27 |
Drainage Area |
1 |
Nid Storage |
240 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
27 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Bad R Near Fort Pierre Sd
|
7cfs |
White R Near Oacoma Sd
|
105cfs |
White River Near White River
|
42cfs |
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.
Falk Dam