Sd Noname 278 Reservoir Report
Nearby: Deuchar Dam Sd Noname 176
Last Updated: December 5, 2025
Sd Noname 278 is a privately-owned dam located in Haakon, South Dakota, along the Cheyenne River.
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Summary
Constructed in 1954, this earth-type dam stands at a height of 32 feet and has a storage capacity of 70 acre-feet. With a low hazard potential and a condition assessment of "Not Rated," this dam plays a crucial role in water resource management in the region.
Managed by the South Dakota Department of Environment and Natural Resources (DENR), Sd Noname 278 is regulated, permitted, inspected, and enforced by the state agency. Despite not being owned or funded by any federal agency, this dam serves as a vital infrastructure for flood control and water supply purposes in the area. It is interesting to note that the dam has not been modified over the years and lacks certain features such as spillways and outlet gates.
For water resource and climate enthusiasts, Sd Noname 278 presents a fascinating case study of a locally-owned dam in a rural setting. With its historic significance and ongoing regulatory oversight, this dam highlights the importance of maintaining and monitoring aging infrastructure to ensure public safety and environmental sustainability. As climate change continues to impact water resources, understanding the role of dams like Sd Noname 278 in mitigating risks and managing water flow becomes increasingly vital for sustainable water management practices.
Year Completed |
1954 |
Dam Length |
150 |
Dam Height |
32 |
River Or Stream |
TR-CHEYENNE RIVER |
Primary Dam Type |
Earth |
Hydraulic Height |
32 |
Nid Storage |
70 |
Hazard Potential |
Low |
Nid Height |
32 |
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 278