Yantighem Reservoir Report
Nearby: Gerald Kane Dies Irae
Last Updated: December 5, 2025
Yantighem is a privately owned earth dam located in Chouteau County, Montana, specifically in the city of LOHMAN.
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Summary
Built in 1961, the dam serves multiple purposes including fire protection, stock watering, and supporting a small fish pond. It has a height of 14 feet and a storage capacity of 50 acre-feet, with a normal storage level of 13 acre-feet. The dam is regulated and inspected by the Montana Department of Natural Resources and Conservation (DNRC), ensuring its safety and compliance with state regulations.
Situated on TR-SAND CREEK, Yantighem has a low hazard potential and is currently rated as "Not Rated" in terms of its condition assessment. The dam does not have an Emergency Action Plan (EAP) in place, nor has it undergone a risk assessment or been assigned a Dam Safety Action Classification (DSAC). Despite these gaps in emergency preparedness, the dam continues to provide essential services to the local community for fire protection and agricultural needs. With its modest size and regulatory oversight, Yantighem remains a reliable water resource for the region while also serving as a habitat for small fish populations.
Year Completed |
1961 |
Dam Length |
75 |
Dam Height |
14 |
River Or Stream |
TR-SAND CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
14 |
Nid Storage |
50 |
Hazard Potential |
Low |
Nid Height |
14 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Judith River Nr Mouth
|
368cfs |
Missouri River At Virgelle Mt
|
4290cfs |
Big Sandy Creek Near Havre Mt
|
6cfs |
Milk River At Havre Mt
|
42cfs |
Peoples Creek Near Hays Mt
|
4cfs |
Clear Creek Near Chinook Mt
|
21cfs |
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.
Yantighem