Sd Noname 79 Reservoir Report
Nearby: Sd Noname 80 Sd Noname 81
Last Updated: December 5, 2025
Sd Noname 79 is a privately owned dam located in Haakon, South Dakota, along the TR-BAD RIVER.
°F
°F
mph
Wind
%
Humidity
Summary
Built in 1968, this Earth type dam stands at a height of 15 feet and spans 510 feet in length, providing a maximum storage capacity of 80 acre-feet. With a normal storage capacity of 35 acre-feet and a maximum discharge of 1680 cubic feet per second, the dam is classified as having a low hazard potential.
Managed by the Natural Resources Conservation Service, Sd Noname 79 is regulated by the South Dakota Department of Environment and Natural Resources, with state permitting, inspection, and enforcement in place. Despite its age, the dam's condition assessment is currently marked as "Not Rated," and it has not been assigned a Dam Safety Action Classification (DSAC) or undergone a risk assessment. Emergency action plans and inundation maps are also lacking for this structure, highlighting potential areas for improvement in emergency preparedness.
Located within the St. Paul District of the US Army Corps of Engineers jurisdiction, Sd Noname 79 is a significant structure for water resource and climate enthusiasts to monitor, as it plays a crucial role in the management of water resources in South Dakota. With its historical significance and operational capabilities, this dam serves as a valuable asset for maintaining water quality and quantity in the region, while also posing minimal risk to surrounding communities.
Year Completed |
1968 |
Dam Length |
510 |
Dam Height |
15 |
River Or Stream |
TR-BAD RIVER |
Primary Dam Type |
Earth |
Hydraulic Height |
15 |
Nid Storage |
80 |
Hazard Potential |
Low |
Nid Height |
15 |
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 79