Sd Noname 170 Reservoir Report
Nearby: Sd Noname 151 Sd Noname 153
Last Updated: December 6, 2025
Sd Noname 170 is a private dam located in Jackson, South Dakota, along the TR-BAD River.
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Summary
Built in 1945, this Earth-type dam stands at a height of 17 feet and has a length of 500 feet. With a storage capacity of 90 acre-feet, the dam serves the primary purpose of water resource management in the area.
Managed by the South Dakota Department of Environment and Natural Resources (DENR), Sd Noname 170 is subject to state regulation, inspection, and enforcement to ensure its safety and functionality. Despite being classified as low hazard potential, the dam's condition assessment is currently rated as "Not Rated," indicating a need for further evaluation. Emergency action plans and risk assessment measures for the dam have not been fully developed, highlighting potential areas for improvement in the management of this water resource infrastructure.
As an essential component of water management in the region, Sd Noname 170 plays a crucial role in flood control and water supply. With a maximum discharge capacity of 850 cubic feet per second, the dam provides a reliable source of water for the surrounding community. While the dam's condition assessment is currently incomplete, ongoing efforts by state regulators and stakeholders are needed to ensure the safety and effectiveness of this vital water resource infrastructure.
Year Completed |
1945 |
Dam Length |
500 |
Dam Height |
17 |
River Or Stream |
TR-BAD RIVER |
Primary Dam Type |
Earth |
Hydraulic Height |
17 |
Nid Storage |
90 |
Hazard Potential |
Low |
Nid Height |
17 |
Seasonal Comparison
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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 170