Gliblet Reservoir Report
Last Updated: December 6, 2025
Located in Garfield, Montana, Gliblet is a privately owned earth dam completed in 1974 for fire protection, stock, and small fish pond purposes.
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Summary
With a height of 21 feet and a length of 733 feet, this dam on SOUTHERLAND COULEE has a storage capacity of 56 acre-feet and is regulated by the Montana Department of Natural Resources and Conservation. Despite being classified as having a low hazard potential, Gliblet is not currently rated for its condition assessment.
Gliblet serves as a crucial water resource in the area, providing storage for fire protection and agricultural needs. The dam, situated in the city of VAN NORMAN, is equipped with state-regulated inspections, permitting, and enforcement to ensure its safety and functionality. While it has not been subject to any modifications or inspections in recent years, Gliblet remains a key infrastructure for water management in the region.
Managed by a private entity, Gliblet plays a vital role in maintaining water security and supporting local irrigation and livestock operations. Its strategic location and purpose make it an essential asset for the community, ensuring access to reliable water sources and safeguarding against potential emergencies. As climate change continues to impact water resources, the presence of structures like Gliblet becomes increasingly important in mitigating risks and sustaining sustainable water management practices.
Year Completed |
1974 |
Dam Length |
733 |
Dam Height |
21 |
River Or Stream |
SOUTHERLAND COULEE |
Primary Dam Type |
Earth |
Hydraulic Height |
21 |
Nid Storage |
56 |
Hazard Potential |
Low |
Nid Height |
21 |
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.
Gliblet