Sd Noname 30 Reservoir Report
Nearby: Sd Noname 23 Sd Noname 27
Last Updated: December 5, 2025
Sd Noname 30 is a privately owned dam located in Haakon, South Dakota, with a primary purpose that is not specified.
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Summary
The dam, constructed in 1972 by the Natural Resources Conservation Service, is an Earth-type structure standing at 17 feet high and stretching 650 feet in length. It has a storage capacity of 150 acre-feet and a maximum discharge rate of 1470 cubic feet per second. Despite its relatively low hazard potential, the dam's condition assessment is marked as "Not Rated," indicating a need for further evaluation.
This dam on the TR-Bad River is regulated by the South Dakota Department of Environment and Natural Resources, with state permitting, inspection, and enforcement activities in place. The dam is situated within the St. Paul District of the US Army Corps of Engineers jurisdiction and is not classified as a USACE structure. While the dam's emergency action plan status and risk management measures are not specified in the data, its low hazard potential suggests a lower level of risk compared to other dams in the region. With its location in a sparsely populated area and no associated structures nearby, Sd Noname 30 presents a unique case for water resource and climate enthusiasts to study and monitor.
Year Completed |
1972 |
Dam Length |
650 |
Dam Height |
17 |
River Or Stream |
TR-BAD RIVER |
Primary Dam Type |
Earth |
Hydraulic Height |
17 |
Nid Storage |
150 |
Hazard Potential |
Low |
Nid Height |
17 |
Seasonal Comparison
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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 30