Summary
Gebhart No.1 is a privately owned dam located in Ziebach, South Dakota, along the TR MOREAU river. Built in 1957, this Earth-type dam stands at a height of 14 feet with a length of 510 feet, providing a maximum storage capacity of 119 acre-feet. Despite its low hazard potential, the dam is regulated by the South Dakota Department of Environment and Natural Resources (DENR) and undergoes regular inspections, permitting, and enforcement to ensure its safety and compliance with state regulations.
Situated within the St. Paul District of the US Army Corps of Engineers, J. Gebhart No.1 is overseen by private owners and is not funded or operated by any federal agency. With a normal storage capacity of 60 acre-feet and a maximum discharge of 1470 cubic feet per second, this dam plays a crucial role in managing water resources in the region. Although its condition has not been officially assessed, the dam remains operational and contributes to flood control and water supply management in the area.
While J. Gebhart No.1 does not have an emergency action plan or inundation maps prepared, its risk assessment and management measures are currently unspecified. Despite these gaps in emergency preparedness, the dam continues to serve its primary purpose effectively. As a key infrastructure in South Dakota's water resource management system, J. Gebhart No.1 stands as a testament to the importance of maintaining and regulating dams to ensure the safety and sustainability of our water supply in the face of changing climate conditions.
Year Completed |
1957 |
Dam Length |
510 |
Dam Height |
14 |
River Or Stream |
TR MOREAU |
Primary Dam Type |
Earth |
Hydraulic Height |
14 |
Nid Storage |
119 |
Hazard Potential |
Low |
Nid Height |
14 |
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.
J. Gebhart No.1