Sd Noname 199 Reservoir Report
Nearby: Sd Noname 198 Sd Noname 203
Last Updated: December 5, 2025
Sd Noname 199 is a privately owned dam located in the Cheyenne River in South Dakota.
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Summary
Built in 1960, this earth dam stands at 18 feet high and stretches 400 feet in length, with a storage capacity of 232 acre-feet. Despite its age, the dam is considered to have a low hazard potential and is currently not rated for its condition assessment.
Managed by the Natural Resources Conservation Service, Sd Noname 199 is regulated by the South Dakota Department of Environment and Natural Resources, with state permitting, inspection, and enforcement processes in place. The dam serves a primary purpose that is not specified, and it is associated with no other structures in its vicinity.
With a maximum discharge capacity of 600 cubic feet per second, Sd Noname 199 plays a crucial role in managing water resources in the region. As climate change continues to impact water availability and variability, understanding the condition and regulatory oversight of dams like Sd Noname 199 becomes increasingly important for ensuring water security and resilience in the face of a changing climate.
Year Completed |
1960 |
Dam Length |
400 |
Dam Height |
18 |
River Or Stream |
TR CHEYENNE RIVER |
Primary Dam Type |
Earth |
Hydraulic Height |
18 |
Nid Storage |
232 |
Hazard Potential |
Low |
Nid Height |
18 |
Seasonal Comparison
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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 199