R. Fields No.5 Reservoir Report
Nearby: A. Herron No.1 R. Fields No.4
Last Updated: December 6, 2025
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Summary
Fields No.5 is a privately owned dam located in Ziebach, South Dakota, along the TR CHEYENNE river. Built in 1939, this earth dam stands at a height of 18 feet with a length of 500 feet, providing a storage capacity of 185 acre-feet. The dam is regulated and inspected by the South Dakota Department of Environment and Natural Resources (DENR), ensuring its compliance with state regulations for safety and maintenance.
Despite its low hazard potential and currently unrated condition assessment, R. Fields No.5 plays a crucial role in water resource management in the region. With a maximum discharge capacity of 2400 cubic feet per second, the dam serves to control flooding and provide water storage for various purposes. The dam's emergency action plan status, risk assessment, and management measures remain unspecified, suggesting potential areas for improvement in ensuring the safety and resilience of this important infrastructure.
As an integral part of the St. Paul District's water infrastructure, R. Fields No.5's location and operational parameters underscore its significance in the local water resource system. The dam's history, design, and regulatory oversight highlight the intricate balance between water management, climate resilience, and infrastructure safety in the face of changing environmental conditions. Continued monitoring and maintenance of R. Fields No.5 will be essential to sustain its role in safeguarding communities and supporting sustainable water resource management practices in South Dakota.
Year Completed |
1939 |
Dam Length |
500 |
Dam Height |
18 |
River Or Stream |
TR CHEYENNE |
Primary Dam Type |
Earth |
Hydraulic Height |
18 |
Nid Storage |
185 |
Hazard Potential |
Low |
Nid Height |
18 |
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.
R. Fields No.5