Sd Noname 246 Reservoir Report
Nearby: Sd Noname 247 Sd Noname 242
Last Updated: December 6, 2025
Located in Haakon, South Dakota, Sd Noname 246 is a privately owned earth dam that was completed in 1962.
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Summary
Standing at a height of 15 feet with a length of 100 feet, this dam has a storage capacity of 90 acre-feet and serves the primary purpose of regulating the flow of the TR-BAD RIVER. Despite its low hazard potential and a lack of a current condition assessment, the dam is regulated, permitted, inspected, and enforced by the South Dakota Department of Environment and Natural Resources (DENR), ensuring its structural integrity and adherence to state regulations.
Owned and regulated by a private entity, Sd Noname 246 plays a crucial role in water resource management within the region, with a normal storage capacity of 30 acre-feet and a maximum discharge of 1200 cubic feet per second. Situated in the city of MIDLAND, this dam is subject to state jurisdiction and enforcement, with a designated emergency action plan (EAP) yet to be prepared. Despite its not rated condition assessment, the dam's operational and safety measures are continuously monitored to mitigate potential risks and ensure public safety in the event of an emergency.
As a significant feature within the St. Paul District of the US Army Corps of Engineers, Sd Noname 246 highlights the importance of proactive dam management and maintenance to safeguard water resources and mitigate potential hazards. Although currently not rated for its condition assessment, this privately owned earth dam serves as a vital infrastructure for regulating the flow of the TR-BAD RIVER and underscores the collaborative efforts between state and federal agencies in ensuring the safety and reliability of water storage and management systems.
Year Completed |
1962 |
Dam Length |
100 |
Dam Height |
15 |
River Or Stream |
TR-BAD RIVER |
Primary Dam Type |
Earth |
Hydraulic Height |
15 |
Nid Storage |
90 |
Hazard Potential |
Low |
Nid Height |
15 |
Seasonal Comparison
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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 246