Barclay Reservoir Report
Nearby: Cbc Dam Chocolate Milkshake
Last Updated: December 6, 2025
Barclay is a private irrigation dam located in Garfield, Montana, along the South Fork Flat Creek.
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Summary
Built in 1955 by the USDA NRCS, this earth dam stands at 24 feet high and spans 250 feet in length, providing a storage capacity of 125 acre-feet. With a low hazard potential and a condition assessment that is currently not rated, Barclay plays a crucial role in supporting agricultural activities in the region.
Managed by the Montana Department of Natural Resources and Conservation (DNRC), Barclay is subject to state regulation, permitting, inspection, and enforcement to ensure its safety and compliance with water resource management standards. Although the dam has not been recently inspected or assessed for its emergency action plan readiness, it remains a key infrastructure for water supply and irrigation purposes in the area.
With Greg Gianforte representing Congressional District 00 in Montana, Barclay serves as a vital component of the local water infrastructure, facilitating efficient water distribution for agricultural activities. Despite its age, the dam continues to play a significant role in supporting the region's water resource management efforts, highlighting the importance of ongoing monitoring and maintenance to ensure its long-term functionality and safety.
Year Completed |
1955 |
Dam Length |
250 |
Dam Height |
24 |
River Or Stream |
SOUTH FORK FLAT CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
24 |
Drainage Area |
3.8 |
Nid Storage |
125 |
Hazard Potential |
Low |
Nid Height |
24 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Nelson Creek Near Van Norman Mt
|
33cfs |
Milk River At Nashua Mt
|
233cfs |
Redwater River At Circle Mt
|
4cfs |
Milk River At Tampico Mt
|
123cfs |
Missouri River Near Wolf Point Mt
|
5020cfs |
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.
Barclay