Donald King 4 Reservoir Report
Nearby: Donald King 2 Donald King
Last Updated: December 5, 2025
Donald King 4 is a private earth dam located in Haakon, South Dakota, along the TR-Cheyenne River.
°F
°F
mph
Wind
%
Humidity
Summary
Built in 1954, this dam stands at a height of 20 feet and has a storage capacity of 80 acre-feet, with a normal storage level of 60 acre-feet. The dam's primary purpose and associated structures are not specified in the data, but it is regulated by the South Dakota Department of Environment and Natural Resources (DENR) and is subject to state permitting, inspection, and enforcement.
Despite being rated as low hazard potential and not having a condition assessment, Donald King 4 is classified as not rated in terms of its condition. The dam has not been inspected recently, and details on emergency action plans, inundation maps, risk assessments, and management measures are not available. The dam does not have any federal agency involvement, funding, or designations, but it falls under the jurisdiction of the St. Paul District of the US Army Corps of Engineers. With its location in South Dakota and connection to the Cheyenne River, Donald King 4 presents an interesting case study for water resource and climate enthusiasts interested in the regulatory oversight and management of privately owned dams.
Year Completed |
1954 |
Dam Length |
400 |
Dam Height |
20 |
River Or Stream |
TR-CHEYENNE RIVER |
Primary Dam Type |
Earth |
Hydraulic Height |
20 |
Nid Storage |
80 |
Hazard Potential |
Low |
Nid Height |
20 |
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.
Donald King 4