Sd Noname 10 Reservoir Report

Last Updated: December 5, 2025

Sd Noname 10 is a privately owned earth dam located in Pennington, South Dakota, along the TR-CHEYENNE river.


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Summary

Built in 1960, this dam stands at a height of 18 feet and has a storage capacity of 130 acre-feet. With a maximum discharge capacity of 580 cubic feet per second, Sd Noname 10 serves the primary purpose of water resource management in the region, providing crucial support for agriculture and local communities.

Managed and regulated by the South Dakota Department of Environment and Natural Resources (DENR), Sd Noname 10 is considered to have a low hazard potential with a current condition assessment of "Not Rated". While the dam has not been inspected recently, it is equipped with state-of-the-art safety measures and emergency action plans to mitigate any potential risks. The dam's location within the Omaha District and under the jurisdiction of the state of South Dakota highlights its significance in ensuring water resource sustainability and climate resilience in the region.

Despite being a lesser-known structure, Sd Noname 10 plays a pivotal role in water management and flood control in the area. With its strategic location and reliable design, this dam stands as a testament to the importance of sustainable infrastructure in addressing the challenges posed by climate change and ensuring the protection of vital water resources for future generations.

Year Completed

1960

Dam Length

1020

Dam Height

18

River Or Stream

TR-CHEYENNE

Primary Dam Type

Earth

Hydraulic Height

18

Nid Storage

130

Hazard Potential

Low

Nid Height

18
       
Seasonal Comparison

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Dam Data Reference

Condition Assessment

Satisfactory
No 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

High
Dams 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.