Sd Noname 157 Reservoir Report
Nearby: Sd Noname 161 Sd Noname 159
Last Updated: December 6, 2025
Sd Noname 157 is a privately owned dam located in Jackson, South Dakota, along the TR-Bad River.
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Summary
Constructed in 1935, this earth dam stands at a height of 22 feet and spans 700 feet in length, with a storage capacity of 150 acre-feet. While the dam is regulated by the South Dakota Department of Environment and Natural Resources (DENR), it is categorized as having a low hazard potential and has not been rated for its condition assessment.
The dam's purpose and associated structures are not specified in the data, but it is noted that the primary source agency is the state of South Dakota. Managed by private owners, Sd Noname 157 undergoes state-permitted inspections and enforcement, ensuring compliance with regulatory guidelines. Despite its age, the dam's risk assessment, emergency action plan, and inundation maps are not documented, indicating potential gaps in emergency preparedness and risk management measures.
With a maximum discharge capacity of 3000 cubic feet per second and a normal storage level of 75 acre-feet, Sd Noname 157 serves as a vital infrastructure for water resource management in the region. As climate change poses increasing threats to water resources, understanding the condition and emergency preparedness of dams like Sd Noname 157 becomes crucial for ensuring the safety and sustainability of our water infrastructure in the face of evolving environmental challenges.
Year Completed |
1935 |
Dam Length |
700 |
Dam Height |
22 |
River Or Stream |
TR-BAD RIVER |
Primary Dam Type |
Earth |
Hydraulic Height |
22 |
Nid Storage |
150 |
Hazard Potential |
Low |
Nid Height |
22 |
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 157