Midland Dam Reservoir Report
Nearby: Sd Noname 228 Saucerman Dam
Last Updated: December 6, 2025
Midland Dam, located in Haakon County, South Dakota, stands as a testament to engineering ingenuity, with a construction year dating back to 1940.
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Summary
This private-owned Earth dam spans 600 feet in length and reaches a height of 25 feet, serving the purpose of regulating the flow of the TR-Bad River. With a maximum storage capacity of 34 acre-feet and a normal storage of 24 acre-feet, the dam plays a vital role in managing water resources in the region.
Despite its age, Midland Dam remains in a relatively low hazard potential category, with a current condition assessment of 'Not Rated'. While the dam's last inspection was conducted in 1978, it is reassuring to note that the structure is state-regulated, with oversight from the Department of Agriculture and Natural Resources (DANR). Additionally, the dam boasts a spillway for excess water discharge, ensuring the safety of downstream areas in case of heavy rainfall or flooding events.
For water resource and climate enthusiasts, Midland Dam offers an intriguing case study in dam engineering and management. As discussions around climate change and water scarcity intensify, the importance of maintaining and updating critical infrastructure like Midland Dam becomes increasingly evident. With a rich history spanning over eight decades, this Earth dam serves as a vital component in the region's water management system, highlighting the intersection of human intervention and natural resources in ensuring sustainable water practices for future generations.
Year Completed |
1940 |
Dam Length |
600 |
Dam Height |
25 |
River Or Stream |
TR-BAD RIVER |
Primary Dam Type |
Earth |
Hydraulic Height |
25 |
Drainage Area |
2 |
Nid Storage |
34 |
Hazard Potential |
Low |
Nid Height |
25 |
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.
Midland Dam