Sd Noname 1 Reservoir Report
Nearby: Sd Noname 114 Sd Noname 148
Last Updated: December 6, 2025
Located in Haakon County, South Dakota, Sd Noname 1 is a privately owned earth dam that was completed in 1950 and stands at a height of 15 feet with a hydraulic height of 13 feet.
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Summary
With a storage capacity of 60 acre-feet, this dam is situated on the TRIB-BAD RIVER in Midland and is regulated by the State of South Dakota's Department of Environment and Natural Resources (DENR). While its hazard potential is categorized as low and its condition assessment remains unrated, Sd Noname 1 serves as a vital structure for water resource management in the region.
Managed by the Natural Resources Conservation Service, Sd Noname 1 plays a crucial role in flood control and water storage, with a normal storage capacity of 40 acre-feet and a maximum discharge rate of 360 cubic feet per second. Although specific details about its spillway type and width are not provided, the dam's length extends to 822 feet, showcasing its substantial scale and importance in the local hydrological network. Despite not being under the jurisdiction of the U.S. Army Corps of Engineers, this dam is subject to state regulatory inspections, enforcement, and permitting, highlighting the collaborative efforts between private owners and government agencies in ensuring its operational integrity.
While details about the dam's condition assessment, emergency action plan, and risk management measures are currently unavailable, Sd Noname 1 stands as a testament to the intricate network of water infrastructure in South Dakota. With Dusty Johnson (R) representing the district in Congress, this dam represents a vital component of the region's water resource management system, reflecting the ongoing efforts to balance environmental conservation with human development in an era of climate change and water scarcity challenges.
Year Completed |
1950 |
Dam Length |
822 |
Dam Height |
15 |
River Or Stream |
TRIB-BAD RIVER |
Primary Dam Type |
Earth |
Hydraulic Height |
13 |
Nid Storage |
60 |
Hazard Potential |
Low |
Nid Height |
15 |
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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 1