Sd Noname 201 Reservoir Report
Nearby: Earl Hanrahan Sd Noname 280
Last Updated: December 5, 2025
Sd Noname 201 is a privately owned dam located in Haakon, South Dakota, along the TR Cheyenne River.
°F
°F
mph
Wind
%
Humidity
Summary
Built in 1934, this earthen dam stands at a height of 20 feet and has a storage capacity of 112 acre-feet. Managed by the Natural Resources Conservation Service, this dam plays a crucial role in flood control and water resource management in the region.
With a significant hazard potential, Sd Noname 201 is regulated by the South Dakota Department of Environment and Natural Resources, ensuring that it meets state inspection, enforcement, and permitting requirements. Despite its age, the condition of the dam is currently not rated, highlighting the need for ongoing monitoring and maintenance to ensure its structural integrity and safety. The dam's primary purpose and specific design features, such as spillways and outlet gates, are not disclosed in the available data, underscoring the importance of further investigation for a comprehensive understanding of its operations.
As a key infrastructure element in the St. Paul District, Sd Noname 201 serves as a vital component of the local water management system. With its strategic location along the Cheyenne River, this dam plays a crucial role in regulating water flow, mitigating flood risks, and ensuring water security for the surrounding community. As water resource and climate enthusiasts, understanding the intricacies of dams like Sd Noname 201 is essential for appreciating the interconnectedness of water infrastructure and environmental sustainability in South Dakota.
Year Completed |
1934 |
Dam Length |
500 |
Dam Height |
20 |
River Or Stream |
TR CHEYENNE RIVER |
Primary Dam Type |
Earth |
Hydraulic Height |
20 |
Nid Storage |
112 |
Hazard Potential |
Significant |
Nid Height |
20 |
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 201