Sd Noname 15 Reservoir Report
Nearby: Sd Noname 104 Sd Noname 4
Last Updated: December 13, 2025
Sd Noname 15, located in Haakon, South Dakota, is a privately owned earth dam with a height of 21 feet and a length of 350 feet.
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Summary
Completed in 1971, this structure serves the primary purpose of water storage, with a capacity of 84 acre-feet and a normal storage level of 36 acre-feet. The dam is situated on the TRIB BAD RIVER and is regulated by the South Dakota Department of Environment and Natural Resources (DENR).
Despite being classified as having a low hazard potential, Sd Noname 15 has not been rated for its current condition. The dam has a maximum discharge capacity of 780 cubic feet per second and is equipped with outlet gates for controlled water release. While the dam has not been inspected recently, it is subject to state regulation, permitting, inspection, and enforcement, indicating a commitment to maintaining its safety and integrity. The surrounding area is represented by Congressman Dusty Johnson (R) and falls under the jurisdiction of the St. Paul District of the US Army Corps of Engineers.
Water resource and climate enthusiasts will find Sd Noname 15 to be an intriguing case study in private dam ownership and regulation in South Dakota. With its modest size and storage capacity, this earth dam plays a vital role in water management for the local area. The dam's history, design, and regulatory oversight offer valuable insights into the complexities of balancing water resource needs with environmental and safety considerations in the region. Further research and monitoring of Sd Noname 15 could provide valuable data for understanding the broader implications of dam infrastructure on water resources and climate resilience in the area.
Year Completed |
1971 |
Dam Length |
350 |
Dam Height |
21 |
River Or Stream |
TRIB BAD RIVER |
Primary Dam Type |
Earth |
Hydraulic Height |
21 |
Nid Storage |
84 |
Hazard Potential |
Low |
Nid Height |
21 |
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 15