Sister Sledge Reservoir Report
Nearby: Turner Closed Doors
Last Updated: January 12, 2026
Sister Sledge is a privately-owned dam located in the picturesque state of Montana, specifically in Liberty County.
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Summary
Built in 1960, this earth dam stands at a height of 28 feet and spans a length of 120 feet, with a storage capacity of 35 acre-feet. The primary purposes of Sister Sledge include fire protection, livestock, and serving as a small fish pond for the local area.
Situated on the TR-Laird Creek, Sister Sledge is regulated by the Montana Department of Natural Resources and Conservation (DNRC), ensuring that the dam meets state inspection, enforcement, and permitting requirements. With a low hazard potential and a condition assessment of "Not Rated," this dam plays a crucial role in water resource management in the region. Despite its modest size, Sister Sledge serves as a vital resource for the community, highlighting the importance of maintaining and monitoring such structures for climate resilience and water sustainability.
Although Sister Sledge has not been assessed for its emergency action plan or risk management measures, its presence contributes to the overall water management infrastructure in the area. With its location in Gildford and the backing of the local community, this dam stands as a testament to the importance of small-scale water resource projects in supporting both human and ecological needs in a changing climate.
Year Completed |
1960 |
Dam Length |
120 |
Dam Height |
28 |
River Or Stream |
TR-LAIRD CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
28 |
Nid Storage |
35 |
Hazard Potential |
Low |
Nid Height |
28 |
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.
Sister Sledge