Philip H. Hambnot Ratedger Reservoir Report
Last Updated: December 13, 2025
Philip H.
°F
°F
mph
Wind
%
Humidity
Summary
Hambnot Ratedger is a private dam located in Potter, South Dakota, with a primary purpose that is not specified. Completed in 1958, this earth dam stands at a height of 13 feet and has a length of 375 feet, providing a storage capacity of 73 acre-feet. Situated on the TR-MISSONot RatedI river or stream, this structure falls under the regulatory jurisdiction of the South Dakota Department of Environment and Natural Resources (DENR), ensuring that it is regularly inspected, permitted, and enforced for safety and compliance.
This dam, managed by a private owner, has a low hazard potential and an unknown condition assessment status. Despite lacking specific details on purposes and risk management measures, the Philip H. Hambnot Ratedger dam plays a crucial role in water resource management in the region. With a maximum discharge capacity of 1050 cubic feet per second, this structure contributes to flood control and water supply needs in the area, highlighting the importance of maintaining and monitoring its operational integrity.
For water resource and climate enthusiasts, the Philip H. Hambnot Ratedger dam presents an intriguing case study of a smaller-scale earth structure with significant implications for local water management. As part of the St. Paul District under the US Army Corps of Engineers, this dam serves as a vital piece of infrastructure in the region, showcasing the intersection of private ownership, state regulation, and environmental stewardship in safeguarding water resources for the community. The ongoing monitoring and maintenance of this dam underscore the critical role it plays in ensuring water security and resilience in the face of changing climate conditions.
Year Completed |
1958 |
Dam Length |
375 |
Dam Height |
13 |
River Or Stream |
TR-MISSONot RatedI |
Primary Dam Type |
Earth |
Hydraulic Height |
13 |
Nid Storage |
73 |
Hazard Potential |
Low |
Nid Height |
13 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Moreau R Near Whitehorse Sd
|
35cfs |
Bad R Near Fort Pierre Sd
|
7cfs |
Oak Cr Near Wakpala Sd
|
10cfs |
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.
Philip H. Hambnot Ratedger