Edwards Cattle Co. #1 Reservoir Report
Nearby: Williams No.1 Bryan No. 1
Last Updated: December 13, 2025
Edwards Cattle Co.
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Summary
#1 is a privately owned dam situated in Mellette, South Dakota that plays a crucial role in water resource management. Completed in 1963, this Earth-type dam stands at a height of 27 feet and has a storage capacity of 17 acre-feet. It serves as a key component in regulating the flow of the TRIB WHITE RIVER OFFSTREAM, with a maximum discharge capacity of 475 cubic feet per second.
Managed by the South Dakota Department of Environment and Natural Resources, Edwards Cattle Co. #1 is recognized for its low hazard potential and is currently rated as "Not Rated" in terms of condition assessment. Despite its age, the dam continues to fulfill its intended purposes effectively, showcasing the importance of sustainable water infrastructure for climate and water resource enthusiasts. With state-regulated operations including permitting, inspection, and enforcement, this dam exemplifies the commitment to safeguarding water resources in the region.
As a noteworthy structure in the St. Paul District, Edwards Cattle Co. #1 is a testament to the ongoing efforts in South Dakota to ensure the safety and efficiency of water management systems. With its strategic location and crucial role in water regulation, this dam stands as a symbol of resilience and dedication to sustainable practices in the face of evolving climate challenges. For enthusiasts passionate about water resources and climate resilience, Edwards Cattle Co. #1 represents a compelling case study in effective dam management and environmental stewardship.
Year Completed |
1963 |
Dam Length |
235 |
Dam Height |
27 |
River Or Stream |
TRIB WHITE RIVER OFFSTREAM |
Primary Dam Type |
Earth |
Hydraulic Height |
27 |
Nid Storage |
17 |
Hazard Potential |
Low |
Nid Height |
27 |
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.
Edwards Cattle Co. #1