Sd Noname 27 Reservoir Report
Nearby: Sd Noname 129 Sd Noname 23
Last Updated: December 5, 2025
Sd Noname 27 is a privately owned dam located in Haakon, South Dakota, along the TRIB-BAD RIVER.
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Summary
Built in 1965 by the Natural Resources Conservation Service, this earth dam stands at a height of 13 feet and has a length of 350 feet. With a storage capacity of 62 acre-feet, the dam serves as a critical water resource for the surrounding area, providing a normal storage capacity of 32 acre-feet and a maximum discharge rate of 1700 cubic feet per second.
Despite being regulated by the South Dakota Department of Environment and Natural Resources, Sd Noname 27 has a low hazard potential and is currently rated as "Not Rated" in terms of its condition assessment. The dam has not undergone recent inspections or maintenance, and its emergency action plan status is unclear. While the risk assessment and management measures for the dam are not specified, it remains an important structure for water management and climate resilience in the region, under the oversight of the St. Paul District of the US Army Corps of Engineers.
Overall, Sd Noname 27 represents a vital component of South Dakota's water infrastructure, serving as both a storage facility and a flood protection measure for the local community. As climate change impacts intensify, the importance of maintaining and monitoring dams like Sd Noname 27 will become increasingly crucial to ensure the safety and sustainability of water resources in the region. Collaboration between private owners, regulatory agencies, and federal authorities will be essential in safeguarding this dam and others like it against emerging climate challenges.
Year Completed |
1965 |
Dam Length |
350 |
Dam Height |
13 |
River Or Stream |
TRIB-BAD RIVER |
Primary Dam Type |
Earth |
Hydraulic Height |
13 |
Nid Storage |
62 |
Hazard Potential |
Low |
Nid Height |
13 |
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 27