Cloudy Dam Reservoir Report
Nearby: Haystack Br-45 Retention Dam
Last Updated: January 12, 2026
Cloudy Dam, located in Blaine County, Montana, is a gravity dam with a hydraulic height of 12 feet and a structural height of 17 feet.
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Summary
Managed by the Bureau of Land Management, it has a storage capacity of 51.91 acre-feet and covers a surface area of 5.6 acres. Despite its low hazard potential, the dam has not been rated for its condition, and the last inspection was conducted in September 2018.
This Federal-owned dam on an unnamed drainage serves various purposes, although specific details are not provided. With no associated structures, the dam's primary source agency is the Department of the Interior's Bureau of Land Management. Although it is not regulated or inspected by the state, Cloudy Dam plays a crucial role in water resource management within the region, highlighting the importance of federal agencies in maintaining and overseeing critical infrastructure for water supply and climate stability.
Cloudy Dam's location in Montana and its ownership by the federal government make it a significant piece of infrastructure in the area. With a solid construction history under the Bureau of Land Management, this dam serves as a testament to the importance of proper management and regulation of water resources in the face of changing climate conditions. As water enthusiasts and climate advocates, understanding the role of dams like Cloudy Dam is crucial in ensuring sustainable water management practices for the future.
Dam Length |
350 |
River Or Stream |
UNNAMED DRAINAGE |
Primary Dam Type |
Gravity |
Surface Area |
5.6 |
Hydraulic Height |
12 |
Drainage Area |
3 |
Nid Storage |
51.91 |
Structural Height |
17 |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
17 |
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.
Cloudy Dam