Sd Noname 161 Reservoir Report
Nearby: Sd Noname 157 Sd Noname 168
Last Updated: December 6, 2025
Sd Noname 161 is a private earth dam located in Jackson, South Dakota, with a low hazard potential and a height of 22 feet.
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Summary
Completed in 1950, this dam has a storage capacity of 90 acre-feet and a maximum discharge of 1800 cubic feet per second. It serves the primary purpose of offstream water storage for the TR-Bad River, managed under the regulatory oversight of the South Dakota Department of Environment and Natural Resources.
Owned and regulated by a private entity, Sd Noname 161 has not been rated for its condition assessment, and emergency action plans are not currently in place. The dam's design and construction are not associated with any federal agencies, and it has not undergone recent inspections or modifications. With its relatively low hazard potential, the dam contributes to water resource management in the region while posing minimal risk to downstream communities.
Situated within the St. Paul District and represented by Congressman Dusty Johnson, Sd Noname 161 stands as an example of a locally managed water infrastructure project in South Dakota. While lacking in certain assessment and emergency preparedness measures, the dam continues to support the agricultural and environmental needs of the area, underscoring the importance of sustainable water resource management in the face of changing climate conditions.
Year Completed |
1950 |
Dam Length |
550 |
Dam Height |
22 |
River Or Stream |
TR-BAD RIVER OFFSTREAM |
Primary Dam Type |
Earth |
Hydraulic Height |
22 |
Nid Storage |
90 |
Hazard Potential |
Low |
Nid Height |
22 |
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 161