Glasscock Bros #1 Reservoir Report
Nearby: Blue Drew #1 Ga Kramer #1
Last Updated: December 6, 2025
Glasscock Bros #1 is a privately-owned earth dam located in Garfield, Montana, specifically in the city of Forsyth.
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Summary
Built in 1935, this dam serves multiple purposes including fire protection, stock maintenance, and as a small fish pond. The dam has a height of 15 feet and a length of 150 feet, with a storage capacity of 54 acre-feet and a normal storage capacity of 28 acre-feet. It is regulated by the Montana Department of Natural Resources and Conservation (DNRC) and is classified as having a low hazard potential.
Situated on the TR-Great Porcupine Creek, Glasscock Bros #1 plays a crucial role in managing water resources in the area. With its location in a region susceptible to climate variability, the dam provides essential water supply for fire protection and livestock maintenance. Despite being privately owned, the dam is subject to state regulations, inspections, and enforcement to ensure its safety and effectiveness. The presence of this dam underscores the importance of sustainable water management practices in mitigating the impacts of climate change on water resources.
As climate change continues to pose challenges to water availability and quality, dams like Glasscock Bros #1 become increasingly vital for maintaining water security in the region. The dam's historical significance, coupled with its strategic location and purpose, highlights the interconnectedness between water resources, climate resilience, and the need for effective water infrastructure. As water resource and climate enthusiasts, understanding the role and management of structures like Glasscock Bros #1 is crucial for ensuring the sustainable utilization and conservation of water in the face of a changing climate.
Year Completed |
1935 |
Dam Length |
150 |
Dam Height |
15 |
River Or Stream |
TR-GREAT PORCUPINE CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
15 |
Nid Storage |
54 |
Hazard Potential |
Low |
Nid Height |
15 |
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.
Glasscock Bros #1