Sd Noname 215 Reservoir Report
Nearby: Sd Noname 214 Donald Ferguson
Last Updated: December 5, 2025
Sd Noname 215 is a private-owned earth dam located in Haakon, South Dakota, along the TR Cheyenne river.
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Summary
Built in 1969 by the Natural Resources Conservation Service, this dam stands at 18 feet tall and stretches 400 feet in length, with a storage capacity of 84 acre-feet. Despite its low hazard potential and moderate risk assessment, the dam has not been rated for its condition, and no inspections have been recorded to date.
The South Dakota Department of Environment and Natural Resources regulates Sd Noname 215, ensuring that state permitting, inspection, and enforcement are carried out. While the dam is classified as uncontrolled spillway type, with a maximum discharge capacity of 2400 cubic feet per second, it meets state jurisdiction requirements and serves as a vital infrastructure for water resource management in the region. The dam's primary purpose and associated structures remain unspecified, highlighting the need for further data collection and assessment to fully understand its role in the local watershed.
With its location in a rural area and no emergency action plan in place, Sd Noname 215 presents a unique case study for water resource and climate enthusiasts. The dam's risk management measures, condition assessment, and hazard potential evaluation are all areas that warrant future attention and research to ensure the safety and sustainability of this essential water infrastructure in South Dakota.
Year Completed |
1969 |
Dam Length |
400 |
Dam Height |
18 |
River Or Stream |
TR CHEYENNE |
Primary Dam Type |
Earth |
Hydraulic Height |
18 |
Nid Storage |
84 |
Hazard Potential |
Low |
Nid Height |
18 |
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 215