Sd Noname 50 Reservoir Report
Nearby: Sd Noname 51 Sd Noname 49
Last Updated: December 6, 2025
Sd Noname 50 is a privately owned earth dam located in Philip, South Dakota, along the TR-Bad River.
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Summary
Built in 1957 by the Natural Resources Conservation Service, this dam stands at 15 feet high with a length of 440 feet. It has a storage capacity of 66 acre-feet and a maximum discharge of 375 cubic feet per second, making it a significant water resource structure in the area.
The dam is regulated by the South Dakota Department of Environment and Natural Resources, with state jurisdiction, permitting, inspection, and enforcement in place. It is considered to have a significant hazard potential and has not been rated for its condition assessment. Despite this, the dam has not been modified in recent years and lacks emergency action plans and risk management measures, highlighting potential areas for improvement in its overall safety and resilience to climate-related events.
Overall, Sd Noname 50 is an important water resource structure in Haakon County, South Dakota, serving its primary purpose of water storage and control along the Bad River. With its significant hazard potential and lack of recent assessments, there is a need for increased monitoring and risk management measures to ensure the safety and longevity of this vital infrastructure in the face of changing climate conditions.
Year Completed |
1957 |
Dam Length |
440 |
Dam Height |
15 |
River Or Stream |
TR-BAD RIVER |
Primary Dam Type |
Earth |
Hydraulic Height |
15 |
Nid Storage |
66 |
Hazard Potential |
Significant |
Nid Height |
15 |
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 50