Turnbull #1 Reservoir Report
Nearby: Watters #1 Schaffer #1
Last Updated: December 6, 2025
Turnbull #1 is a privately owned earth dam located in Powder River, Montana, with a primary purpose of fire protection, stock, or small fish pond.
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Summary
The dam, completed in 1954, stands at a height of 22 feet and has a storage capacity of 87 acre-feet. Situated on Corral Creek, the dam serves as a vital resource for the local community, ensuring water availability for firefighting, livestock, and recreational purposes.
Managed by the Montana Department of Natural Resources and Conservation (DNRC), Turnbull #1 is designated as a low hazard potential structure. Despite not having a condition assessment rating, the dam is regularly inspected and maintained by the state agency to uphold safety standards. With its strategic location and importance for water resource management in the region, Turnbull #1 exemplifies the critical role of small-scale dams in providing essential services and mitigating potential risks associated with water scarcity and climate variability.
As water resource and climate enthusiasts, monitoring and supporting infrastructure like Turnbull #1 is crucial for sustainable water management practices. By staying informed about the condition and regulatory oversight of dams like this one, individuals can contribute to the preservation of water resources and the resilience of communities against the impacts of a changing climate. Turnbull #1 serves as a reminder of the interconnectedness between water infrastructure, environmental stewardship, and community well-being in the face of evolving water challenges.
Year Completed |
1954 |
Dam Length |
150 |
Dam Height |
22 |
River Or Stream |
CORRAL CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
22 |
Nid Storage |
87 |
Hazard Potential |
Low |
Nid Height |
22 |
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.
Turnbull #1