Beckwith Dam Reservoir Report
Last Updated: December 13, 2025
Beckwith Dam, located in Haakon, South Dakota, is a privately-owned structure that was completed in 1977.
°F
°F
mph
Wind
%
Humidity
Summary
This earth dam stands at a height of 75 feet and has a storage capacity of 400 acre-feet, with a normal storage level of 200 acre-feet. Situated on the West Fork Hermaphrodite Creek, the dam serves as a vital resource for water management in the region.
Despite being classified as having a low hazard potential and not currently rated for condition assessment, Beckwith Dam falls under the regulatory jurisdiction of the South Dakota Department of Environment and Natural Resources (DENR). The dam does not have associated locks or spillways and has not undergone recent inspections. However, its strategic location and design play a crucial role in flood control and water supply management for the surrounding area.
As climate change continues to impact water resources and infrastructure, the maintenance and monitoring of dams such as Beckwith become increasingly important. With its key role in water management and regulation, Beckwith Dam stands as a testament to the ongoing efforts to ensure the sustainability and safety of water resources in South Dakota.
Year Completed |
1977 |
Dam Length |
600 |
Dam Height |
75 |
River Or Stream |
W. FORK HERMAPHRODITE CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
75 |
Nid Storage |
400 |
Hazard Potential |
Low |
Nid Height |
75 |
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.
Beckwith Dam