New Calve Reservoir Report
Nearby: Keeling George Welch
Last Updated: December 20, 2025
New Calve is a private irrigation dam located in Hill, Montana, along the TR-SPRING COULEE river.
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Summary
Completed in 1970, this earth dam stands at a height of 20 feet and has a storage capacity of 158 acre-feet. The primary purpose of New Calve is to support irrigation activities in the surrounding area, making it a crucial water resource for agriculture in the region.
Managed by the Montana Department of Natural Resources and Conservation (DNRC), New Calve is regulated, permitted, inspected, and enforced by the state, ensuring its safe operation and compliance with regulations. With a low hazard potential and a condition assessment of "Not Rated," the dam is considered to be in stable condition. While details on emergency preparedness and risk assessment are not provided, the dam serves as a vital infrastructure for water management in the area, supporting local farmers and contributing to the region's agricultural sustainability.
Situated in Congressional District 00, Montana, New Calve is under the oversight of Representative Greg Gianforte (R). As enthusiasts of water resources and climate, understanding the significance of dams like New Calve in water management and agriculture sheds light on the interconnectedness of infrastructure, natural resources, and climate resilience in our changing world.
Year Completed |
1970 |
Dam Length |
200 |
Dam Height |
20 |
River Or Stream |
TR-SPRING COULEE |
Primary Dam Type |
Earth |
Hydraulic Height |
20 |
Nid Storage |
158 |
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.
New Calve