Stromer Herman No.1 Reservoir Report
Nearby: Rada Roy No.1 Greene No. 1
Last Updated: December 9, 2025
Stromer Herman No.1 is a privately owned dam located in Mellette, South Dakota, along the TR White River Offstream.
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Summary
Constructed in 1963 by the Natural Resources Conservation Service, this earthen dam stands at a height of 28 feet and has a length of 313 feet. With a storage capacity of 17 acre-feet and a maximum discharge of 130 cubic feet per second, the dam serves as a crucial water resource infrastructure in the region.
Managed and regulated by the South Dakota Department of Environment and Natural Resources, Stromer Herman No.1 is classified as having a low hazard potential and is currently rated as "Not Rated" in terms of its condition assessment. While the dam has not undergone recent inspections or condition assessments, it is in compliance with state permitting, inspection, and enforcement requirements. Despite not having an Emergency Action Plan in place, the dam continues to play a vital role in water management and conservation efforts within the area.
With its strategic location and vital role in water resource management, Stromer Herman No.1 stands as a testament to the importance of infrastructure in safeguarding against climate impacts and ensuring sustainable water use. As an essential component in the region's water infrastructure, this dam underscores the need for ongoing monitoring and maintenance to uphold its functionality and safeguard against potential risks and hazards.
Year Completed |
1963 |
Dam Length |
313 |
Dam Height |
28 |
River Or Stream |
TR WHITE RIVER OFFSTREAM |
Primary Dam Type |
Earth |
Hydraulic Height |
28 |
Nid Storage |
17 |
Hazard Potential |
Low |
Nid Height |
28 |
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.
Stromer Herman No.1