Sidney Dam Reservoir Report
Nearby: Clem-Reid #1 Blackford #5
Last Updated: December 5, 2025
Sidney Dam, located in Carter, Montana, is a gravity dam with a structural height of 32 feet and a hydraulic height of 28 feet.
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Summary
Built by the Bureau of Land Management, this dam serves as a vital structure in an unnamed drainage area with a storage capacity of 100 acre-feet. Despite its low hazard potential, Sidney Dam plays a crucial role in managing water resources in the region, with a surface area of 10.96 acres and a drainage area of 0.3 square miles.
Owned and funded by the Bureau of Land Management, Sidney Dam has not been rated for its condition assessment. However, it is inspected every five years to ensure its safety and functionality. With no associated structures and a primary purpose that is unspecified, Sidney Dam stands as a testament to effective water resource management in Montana. Its location and design reflect the commitment of federal agencies in maintaining critical infrastructure for the benefit of the surrounding communities.
Sidney Dam, constructed with buttress and stone core types, represents a collaborative effort between federal agencies to regulate, inspect, and operate this essential water management structure. While its specific purposes and completion date are not provided, Sidney Dam's presence underscores the importance of sustainable water resource management in the face of changing climates. As water resource and climate enthusiasts, understanding and appreciating the role of dams like Sidney Dam is crucial in ensuring the resilience of our water infrastructure for future generations.
Dam Length |
1322 |
River Or Stream |
UNNAMED DRAINAGE |
Primary Dam Type |
Gravity |
Surface Area |
10.96 |
Hydraulic Height |
28 |
Drainage Area |
0.3 |
Nid Storage |
100 |
Structural Height |
32 |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
32 |
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.
Sidney Dam