Harkin Reservoir Report
Nearby: Pete Stump Retention Dam
Last Updated: January 11, 2026
Harkin is a state-regulated dam located in Carter, Montana, along the TR-STUMP CREEK.
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Summary
Completed in 1979, this earth dam stands at a height of 15 feet and has a storage capacity of 74 acre-feet, primarily serving purposes such as fire protection, stock, and a small fish pond. With a low hazard potential, Harkin is under the jurisdiction of the Montana Department of Natural Resources and Conservation (DNRC), which oversees permitting, inspection, and enforcement activities to ensure its safe operation.
Owned by the state of Montana, Harkin plays a crucial role in water resource management in the area, providing essential services for fire protection and livestock watering. With a structural height of 15 feet and a length of 130 feet, the dam helps regulate water flow and storage along TR-STUMP CREEK, contributing to the overall water supply in the region. While the dam's condition is currently rated as "Not Rated," regular inspections and maintenance are conducted to ensure its continued functionality and safety.
Located in a scenic area near MIZPAH, Harkin is a significant infrastructure project that reflects the state's commitment to water resource management and climate resilience. With a storage capacity of 74 acre-feet and a normal storage level of 29 acre-feet, the dam serves as a vital resource for the local community. As climate change impacts water availability and quality, Harkin's role in providing essential services for fire protection and livestock watering becomes even more critical, highlighting the importance of sustainable water management practices in the region.
Year Completed |
1979 |
Dam Length |
130 |
Dam Height |
15 |
River Or Stream |
TR-STUMP CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
15 |
Nid Storage |
74 |
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.
Harkin