Nohrenbnot Ratedg No. 1 Reservoir Report
Nearby: Nohrenberg No. 2 Nohrenberg #3
Last Updated: December 8, 2025
Nohrenbnot Ratedg No.
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Summary
1, located in Mellette, South Dakota, is a privately owned dam on a tributary of the Little White River. Built in 1959, this earth dam stands at a height of 32 feet and has a storage capacity of 75 acre-feet. While its hazard potential is classified as low, the condition of the dam is currently rated as "Not Rated," indicating a need for further assessment.
Managed by the South Dakota Department of Environment and Natural Resources, Nohrenbnot Ratedg No. 1 is subject to state regulation, permitting, inspection, and enforcement. Despite its age, the dam has not undergone any significant modifications in recent years, and its emergency action plan status and risk assessment remain unspecified. With a maximum discharge capacity of 3045 cubic feet per second, this dam plays a crucial role in flood control and water resource management in the region.
As water resource and climate enthusiasts continue to monitor and analyze the status of dams like Nohrenbnot Ratedg No. 1, ensuring their safety and functionality remains a top priority. With its strategic location and state oversight, this dam serves as a key infrastructure for protecting communities and ecosystems against potential water-related risks. Ongoing evaluations and improvements are essential to maintaining the resilience and sustainability of this vital water resource structure.
Year Completed |
1959 |
Dam Length |
375 |
Dam Height |
32 |
River Or Stream |
TRIB. LITTLE WHITE RIVER |
Primary Dam Type |
Earth |
Hydraulic Height |
32 |
Nid Storage |
75 |
Hazard Potential |
Low |
Nid Height |
32 |
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.
Nohrenbnot Ratedg No. 1