Sd Noname 179 Reservoir Report
Nearby: Lewis Dam Sd Noname 178
Last Updated: December 6, 2025
Sd Noname 179 is a private dam located in Pennington, South Dakota, along the TR-CHEYENNE river.
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Summary
Constructed in 1965 by the Natural Resources Conservation Service, this earth dam stands at a height of 27 feet and has a length of 400 feet, providing a maximum storage capacity of 150 acre-feet. The dam is regulated by the South Dakota Department of Environment and Natural Resources, with state permitting, inspection, and enforcement in place to ensure its safety and compliance.
With a low hazard potential and a condition assessment of "Not Rated," Sd Noname 179 serves as a vital structure for water resource management in the region. Despite lacking specific information on its associated structures and recent inspections, the dam continues to play a crucial role in flood control and water storage along the TR-CHEYENNE river. However, further details on emergency action plans, risk assessments, and inundation mapping are needed to enhance the overall safety and management of the dam.
As one of the many dams under private ownership in South Dakota, Sd Noname 179 highlights the importance of effective regulation and maintenance practices for ensuring the resilience of water infrastructure in the face of changing climate conditions. With ongoing efforts to assess and address potential risks, this dam exemplifies the collaboration between private owners, state agencies, and federal entities in safeguarding water resources for future generations.
Year Completed |
1965 |
Dam Length |
400 |
Dam Height |
27 |
River Or Stream |
TR-CHEYENNE |
Primary Dam Type |
Earth |
Hydraulic Height |
27 |
Nid Storage |
150 |
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.
Sd Noname 179