Mustapha Reservoir Report
Nearby: Big Sage Hen Stevenson, T.
Last Updated: December 20, 2025
Mustapha is a privately owned dam situated in Gildford, Montana, specifically on the TR-Sage Creek.
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Summary
Built in 1960, this earth dam serves multiple purposes including fire protection, stock water supply, and a small fish pond. With a height of 8 feet and a length of 450 feet, Mustapha has a storage capacity of 117 acre-feet, making it an essential resource for the surrounding area.
The dam is regulated by the Montana Department of Natural Resources and Conservation (DNRC) and is inspected, permitted, and enforced by state authorities. Despite being categorized as having a low hazard potential and not yet receiving a condition assessment rating, Mustapha plays a crucial role in water management and resource conservation in the region. It is located in Hill County, Montana, and falls under the jurisdiction of Congressional District 00, represented by Greg Gianforte (R).
Although Mustapha has not been assessed for its condition or preparedness for emergencies such as inundation, the dam continues to provide valuable services for the local community. As a point of interest for water resource and climate enthusiasts, Mustapha represents a significant infrastructure that contributes to the resilience and sustainability of the surrounding environment. Its historical significance, combined with its current operational status, highlights the importance of maintaining and monitoring dams to ensure their continued safety and functionality.
Year Completed |
1960 |
Dam Length |
450 |
Dam Height |
8 |
River Or Stream |
TR-SAGE CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
8 |
Nid Storage |
117 |
Hazard Potential |
Low |
Nid Height |
8 |
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.
Mustapha