Two D-4 Ranch Reservoir Report
Nearby: Major #1 One D-4 Ranch
Last Updated: December 5, 2025
The Two D-4 Ranch, located in Carter, Montana, is a privately owned property with a dam constructed in 1952 on the TR-Corral Creek.
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Summary
This earth dam stands at a height of 20 feet and has a storage capacity of 62 acre-feet, primarily used for fire protection, stock, and small fish pond purposes. The ranch is regulated by the Montana Department of Natural Resources and Conservation (DNRC) and undergoes regular inspections, enforcement, and permitting to ensure its safety and compliance with state regulations.
With a low hazard potential and a condition assessment of "Not Rated," the Two D-4 Ranch dam poses minimal risk to surrounding areas. The dam's emergency action plan (EAP) status, risk assessment, and management measures are currently not available, indicating a need for further evaluation and preparation in case of emergencies. Despite the lack of specific details on risk management, the ranch remains a vital resource for water storage and conservation in the region, supporting local ecosystems and agriculture while providing essential fire protection measures.
As a key feature in the Omaha District of Montana, the Two D-4 Ranch dam contributes to water resource management and climate resilience efforts in the area. Its strategic location and purposeful design demonstrate a commitment to sustainable water usage and ecosystem preservation, highlighting the importance of private landowners in maintaining and protecting natural resources for future generations.
Year Completed |
1952 |
Dam Length |
280 |
Dam Height |
20 |
River Or Stream |
TR-CORRAL CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
20 |
Nid Storage |
62 |
Hazard Potential |
Low |
Nid Height |
20 |
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.
Two D-4 Ranch