Al Reddin Reservoir Report
Nearby: Schumacher Dam Taylor Brothers
Last Updated: December 6, 2025
Al Reddin, a privately owned earth dam located in Hughes County, South Dakota, stands as a pivotal structure in the management of water resources in the area.
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Summary
Constructed in 1938 by the Natural Resources Conservation Service, this dam on TRIB. SPRING CREEK serves as a crucial component in regulating water flow and storage, with a height of 20 feet and a storage capacity of 88 acre-feet. Despite its low hazard potential, Al Reddin plays a vital role in flood control and water supply management for the region.
With state regulation and oversight from the South Dakota Department of Environment and Natural Resources (DENR), Al Reddin remains in good standing and is regularly inspected for safety and operational efficiency. The dam's condition is currently rated as "Not Rated," indicating a need for further assessment. Additionally, the dam does not have an Emergency Action Plan (EAP) in place, highlighting a potential area for improvement in emergency preparedness and risk management.
As a key infrastructure in the region, Al Reddin's significance extends beyond its physical attributes to its role in safeguarding the local community from potential water-related hazards. Enthusiasts of water resources and climate management can appreciate the intricate balance of functionality and safety that Al Reddin represents, making it a notable structure in the ongoing efforts to ensure water security and environmental sustainability in South Dakota.
Year Completed |
1938 |
Dam Length |
500 |
Dam Height |
20 |
River Or Stream |
TRIB. SPRING CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
20 |
Nid Storage |
88 |
Hazard Potential |
Low |
Nid Height |
20 |
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.
Al Reddin