Brady Lakes #4 Reservoir Report
Nearby: Apocolipse Snortland Dam
Last Updated: December 25, 2025
Brady Lakes #4 is a privately owned earth dam located in Teton County, Montana, near the city of Collins.
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Summary
Completed in 1930, the dam serves multiple purposes including fire protection, stock watering, and as a small fish pond. With a height of 8 feet and a length of 100 feet, the dam has a storage capacity of 169 acre-feet, providing a vital water resource for the surrounding area.
Managed by the Montana Department of Natural Resources and Conservation (DNRC), Brady Lakes #4 is regulated, inspected, and enforced by the state to ensure its safety and compliance with regulations. The dam has a low hazard potential and is currently rated as "Not Rated" in terms of condition assessment. Although the dam has not been modified in recent years, it continues to play an essential role in water management and conservation in the region.
Located on the Brady Canal, Brady Lakes #4 is part of the Omaha District, with Congressional representation by Greg Gianforte. Despite being a privately owned structure, the dam serves a crucial role in providing water for various uses, highlighting the importance of sustainable water resource management in the face of changing climate conditions.
Year Completed |
1930 |
Dam Length |
100 |
Dam Height |
8 |
River Or Stream |
BRADY CANAL |
Primary Dam Type |
Earth |
Hydraulic Height |
8 |
Nid Storage |
169 |
Hazard Potential |
Low |
Nid Height |
8 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Teton River Near Dutton Mt
|
83cfs |
Teton River Bl South Fork Nr Choteau Mt
|
44cfs |
Marias River Near Shelby Mt
|
4860cfs |
Sun River At Simms Mt
|
425cfs |
Sun River Bl Willow Cr Nr Augusta Mt
|
116cfs |
Lake Creek Near Power Mt
|
30cfs |
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.
Brady Lakes #4