Bill Bnot Ratedtz 1 Reservoir Report
Nearby: Earl Bnot Ratedtz 1 Floyd Sletto
Last Updated: December 13, 2025
Bill Bnot Ratedtz 1 is a private-owned dam located in Tripp, South Dakota, along the White River off-stream.
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Summary
Built in 1946, this earth dam stands at 28 feet high and is primarily regulated by the South Dakota Department of Environment and Natural Resources (DENR). With a storage capacity of 21 acre-feet, it serves as a low-hazard structure with a condition assessment of "Not Rated."
Managed by the Natural Resources Conservation Service, Bill Bnot Ratedtz 1 has a maximum discharge of 420 cubic feet per second and a normal storage capacity of 6 acre-feet. Despite its low hazard potential, the dam does not have an Emergency Action Plan (EAP) prepared, and its risk assessment and management measures remain unspecified. With its last inspection date and condition assessment date undisclosed, there is room for improvement in the monitoring and maintenance of this vital water resource infrastructure.
Water resource and climate enthusiasts should take note of Bill Bnot Ratedtz 1 as a key structure in South Dakota's water management system. As climate change continues to impact water availability and quality, ensuring the safety and efficiency of dams like Bill Bnot Ratedtz 1 is crucial for sustainable water resource management in the region. With its unique design and historical significance, this dam serves as a valuable asset in the state's efforts to protect and preserve its water resources for future generations.
Year Completed |
1946 |
Dam Length |
345 |
Dam Height |
28 |
River Or Stream |
WHITE RIVER OFF STREAM |
Primary Dam Type |
Earth |
Hydraulic Height |
28 |
Nid Storage |
21 |
Hazard Potential |
Low |
Nid Height |
28 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
White R Near Oacoma Sd
|
105cfs |
White River Near White River
|
42cfs |
Little White R Below White River Sd
|
141cfs |
Keya Paha R Near Keyapaha Sd
|
33cfs |
Little White R Near Rosebud Sd
|
96cfs |
Keya Paha R At Wewela Sd
|
54cfs |
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.
Bill Bnot Ratedtz 1