Sd Noname 12 Reservoir Report
Nearby: Sd Noname 111 Farmingdale (Nid)
Last Updated: December 5, 2025
Sd Noname 12 is a state-regulated earth dam located in Pennington, South Dakota, along the TR-RAPID CREEK.
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Summary
Built in 1952, this dam stands at 17 feet high and has a storage capacity of 102 acre-feet. Managed by the South Dakota Department of Agriculture and Natural Resources (DANR), this dam is inspected regularly to ensure its structural integrity and safety.
Despite its low hazard potential, Sd Noname 12 plays a crucial role in managing water resources in the region, with a maximum discharge capacity of 442 cubic feet per second. The dam provides essential water storage for irrigation, recreation, and flood control purposes. With a normal storage capacity of 62 acre-feet, this dam is a vital component of the local water infrastructure.
Although its condition assessment is currently listed as "Not Rated," Sd Noname 12 continues to be a reliable water management structure in South Dakota. With a history of effective operation and maintenance, this dam serves as a testament to the importance of sustainable water resource management in the face of changing climate conditions.
Year Completed |
1952 |
Dam Length |
290 |
Dam Height |
17 |
River Or Stream |
TR-RAPID CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
17 |
Nid Storage |
102 |
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 12