Hulm Reservoir Report
Nearby: Tribe No.3 Matter
Last Updated: December 7, 2025
Hulm, located in Ziebach, South Dakota, is a privately owned dam on the TR MOREAU river with a height of 18 feet and a length of 600 feet.
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Summary
Constructed in 1956 by the Natural Resources Conservation Service, this earth dam has a storage capacity of 162 acre-feet and a maximum discharge rate of 3150 cubic feet per second. Despite its low hazard potential, Hulm is regulated by the South Dakota Department of Environment and Natural Resources and undergoes regular inspections, permitting, and enforcement to ensure its safety and compliance with state regulations.
With its primary purpose unspecified, Hulm serves as a vital water resource for the region, providing storage for irrigation, livestock, and domestic water supply. The dam's normal storage capacity of 97 acre-feet supports the local ecosystem and agricultural activities in the area. While its condition assessment is currently listed as "Not Rated," Hulm's emergency action plan status, risk assessment, and hazard mitigation measures are not specified in the available data. However, its strategic location and controlled release capabilities make it an essential infrastructure for water management and climate resilience efforts in South Dakota.
Managed by private owners, Hulm plays a crucial role in water management and flood control within the St. Paul District. The dam's presence ensures water security and resource sustainability for the surrounding communities, with Dusty Johnson (R) representing the area in Congress. As climate change impacts continue to affect the region, Hulm stands as a testament to the importance of resilient water infrastructure and proactive risk management in safeguarding our water resources for future generations.
Year Completed |
1956 |
Dam Length |
600 |
Dam Height |
18 |
River Or Stream |
TR MOREAU |
Primary Dam Type |
Earth |
Hydraulic Height |
18 |
Nid Storage |
162 |
Hazard Potential |
Low |
Nid Height |
18 |
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.
Hulm