Sd Noname 71 Reservoir Report
Nearby: Sd Noname 72 Sd Noname 70
Last Updated: December 5, 2025
Sd Noname 71 is a privately owned dam located in Philip, South Dakota, along the TR-BAD RIVER.
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Summary
Built in 1954, this earthen dam stands at a height of 13 feet and has a storage capacity of 62 acre-feet. Despite its low hazard potential, the dam is regulated and inspected by the South Dakota Department of Environment and Natural Resources (DENR), ensuring its safety and compliance with state regulations.
Managed by the Natural Resources Conservation Service, Sd Noname 71 serves various purposes related to water resource management, although specific details on its primary purpose are not provided. With a maximum discharge capacity of 875 cubic feet per second, the dam plays a crucial role in flood control and water supply management in the region. While the dam's condition assessment is currently listed as "Not Rated," its low hazard potential suggests that it poses minimal risk to surrounding communities.
Although lacking specific information on emergency preparedness measures, such as the existence of an Emergency Action Plan (EAP) or updated inundation maps, Sd Noname 71 remains a key infrastructure for water resource management in Haakon County, South Dakota. With its historical significance dating back to the mid-20th century, this earthen dam continues to play a vital role in regulating water flow along the TR-BAD RIVER and ensuring water security for local communities.
Year Completed |
1954 |
Dam Length |
510 |
Dam Height |
13 |
River Or Stream |
TR-BAD RIVER |
Primary Dam Type |
Earth |
Hydraulic Height |
13 |
Nid Storage |
62 |
Hazard Potential |
Low |
Nid Height |
13 |
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 71