Cockran Grazing #1 Reservoir Report
Nearby: Cockran Grazing #2 Cockran Grazing #3
Last Updated: December 5, 2025
Cockran Grazing #1 is a privately owned water resource located in Carter County, Montana, near Camp Crook, South Dakota.
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Summary
This earth dam was completed in 1959 and serves multiple purposes including fire protection, stock watering, and small fish pond management. With a height of 25 feet and a length of 700 feet, the dam has a storage capacity of 571 acre-feet, making it an important asset for the local community.
Managed by the Montana Department of Natural Resources and Conservation (DNRC), Cockran Grazing #1 is state-regulated, inspected, and enforced to ensure its safety and functionality. The dam has a low hazard potential and has not been rated for its condition assessment. Situated on TR-North Fork Willow Creek, this water resource plays a crucial role in the local ecosystem and serves as a vital source of water for livestock and wildlife in the area.
As an integral part of the watershed, Cockran Grazing #1 contributes to the overall water management and conservation efforts in the region. With its strategic location and multiple benefits, this dam highlights the importance of sustainable water resource management practices for both agricultural and ecological purposes. Climate enthusiasts and water resource advocates can appreciate the significance of Cockran Grazing #1 in maintaining the balance of water resources in Carter County, Montana.
Year Completed |
1959 |
Dam Length |
700 |
Dam Height |
25 |
River Or Stream |
TR-NORTH FORK WILLOW CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
25 |
Nid Storage |
571 |
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.
Cockran Grazing #1