Sd Noname 111 Reservoir Report
Nearby: Boydston Dam Sd Noname 110
Last Updated: December 5, 2025
Sd Noname 111 is a private dam located in Pennington, South Dakota, with a low hazard potential and a height of 14 feet.
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Summary
Completed in 1949, this earth dam has a storage capacity of 241 acre-feet and a maximum discharge of 75 cubic feet per second. Despite being not rated for its condition assessment, the dam is regulated and inspected by the South Dakota Department of Environment and Natural Resources.
Situated on the TR-Rapid Creek and owned by a private entity, Sd Noname 111 plays a crucial role in water resource management in the region. With a primary purpose not specified, the dam serves as a vital infrastructure for flood control and water storage. Its location in Pennington County under the jurisdiction of the state and federal agencies ensures proper permitting, inspection, and enforcement measures are in place to safeguard the surrounding environment and communities.
Managed by the owner and regulatory agencies, Sd Noname 111 stands as a testament to the collaborative efforts in ensuring the safety and functionality of water structures in South Dakota. With a history dating back to over 70 years, this dam continues to play a significant role in water resource management and climate resilience in the region, reflecting the importance of sustainable infrastructure for a changing climate future.
Year Completed |
1949 |
Dam Length |
400 |
Dam Height |
14 |
River Or Stream |
TR-RAPIDCREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
14 |
Nid Storage |
241 |
Hazard Potential |
Low |
Nid Height |
14 |
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 111