Summary
Built in 1966, this dam stands at a height of 25 feet and has a length of 670 feet, with a storage capacity of 25 acre-feet. While the primary purpose of this dam is not specified, it is regulated by the South Dakota Department of Environment and Natural Resources (DENR) and undergoes regular inspections, enforcement, and permitting processes to ensure its safety and compliance with state regulations.
Despite its low hazard potential and current "Not Rated" condition assessment, Anderson No.2 has not had its Emergency Action Plan (EAP) prepared or updated, raising concerns about emergency preparedness. The dam is under the jurisdiction of the St. Paul District of the US Army Corps of Engineers, but has not received federal funding, design, construction, or regulatory oversight. With a maximum discharge capacity of 240 cubic feet per second, this dam plays a crucial role in water resource management in the area, highlighting the importance of ongoing monitoring and maintenance to mitigate potential risks and ensure the safety of surrounding communities and ecosystems.
Year Completed |
1966 |
Dam Length |
670 |
Dam Height |
25 |
River Or Stream |
OAK CREEK OFFSTREAM |
Primary Dam Type |
Earth |
Hydraulic Height |
25 |
Nid Storage |
25 |
Hazard Potential |
Low |
Nid Height |
25 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
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 |
White R Near Oacoma Sd
|
105cfs |
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.
Anderson No.2