Summary
Built in 1963 by the USDA NRCS, this earth dam stands at a height of 15 feet and has a storage capacity of 137 acre-feet. Situated on the TR-BLACK COULEE river or stream, Ellsworth has a low hazard potential and is regulated by the DNRC, with state permitting, inspection, and enforcement in place to ensure its safety and compliance.
Although Ellsworth has not been rated for its condition assessment, it is considered to have a moderate risk level. The dam features an uncontrolled spillway with a width of 56 feet and a maximum discharge capacity of 260 cubic feet per second. Despite lacking certain details such as last inspection date and hazard potential assessment, Ellsworth remains a vital water resource structure in the region, providing essential services for both human and wildlife needs. With its historical significance and continued functionality, Ellsworth stands as a testament to the importance of responsible water management in the face of changing climate conditions.
Year Completed |
1963 |
Dam Length |
130 |
Dam Height |
15 |
River Or Stream |
TR-BLACK COULEE |
Primary Dam Type |
Earth |
Hydraulic Height |
15 |
Drainage Area |
0.91 |
Nid Storage |
137 |
Hazard Potential |
Low |
Nid Height |
15 |
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.
Ellsworth