Summary
is a privately owned irrigation dam located in Circle, Montana, along Dry Ash Creek. Built in 1960 by the USDA NRCS, this earth dam stands at a height of 25 feet and spans a length of 300 feet. With a storage capacity of 155 acre-feet and a drainage area of 1.19 square miles, Mothershead, R. plays a crucial role in providing water for agricultural purposes in the region.
Managed by the Montana Department of Natural Resources and Conservation (DNRC), Mothershead, R. is classified as having a low hazard potential and is currently rated as "Not Rated" in terms of its condition assessment. While details regarding the last inspection date and emergency action plan preparation are not available, the dam is subject to state regulation, inspection, and enforcement to ensure its safety and functionality. The dam's spillway width of 30 feet and maximum discharge of 3000 cubic feet per second further highlight its significance in managing water resources in the area.
Despite lacking certain details such as a condition assessment date and emergency action plan information, Mothershead, R. remains a vital infrastructure for irrigation purposes in the region. With its low hazard potential and state regulatory oversight, the dam serves as a key component in the water management system along Dry Ash Creek, contributing to the agricultural sustainability and water resource management efforts in McCone County, Montana.
Year Completed |
1960 |
Dam Length |
300 |
Dam Height |
25 |
River Or Stream |
DRY ASH CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
25 |
Drainage Area |
1.19 |
Nid Storage |
155 |
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.
Mothershead, R.