Little Sage Creek Reservoir Reservoir Report
Nearby: Teton Reservoir Chapman
Last Updated: December 5, 2025
Little Sage Creek Reservoir, located in Carbon County, Wyoming, is a federally owned gravity dam primarily designed for debris control on the Little Sage Creek.
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Summary
Completed in 1969 by the Bureau of Land Management, this reservoir has a structural height of 26 feet and a hydraulic height of 21 feet, with a storage capacity of 380 acre-feet and a surface area of 132.3 acres. The dam is regulated by the State of Wyoming and inspected regularly to ensure its satisfactory condition.
Despite its relatively small size, Little Sage Creek Reservoir poses a high hazard potential due to its location and design. The reservoir has an uncontrolled spillway and no outlet gates, making it crucial for emergency preparedness and risk management. The dam is classified as having a moderate risk level, requiring ongoing monitoring and potential mitigation measures to prevent any potential disasters.
Local water resource and climate enthusiasts can appreciate Little Sage Creek Reservoir for its role in maintaining water quality and managing debris along the creek. The dam's purpose and design reflect the importance of balancing environmental conservation with infrastructure development, showcasing the complexities involved in managing water resources in a changing climate. As a federally owned structure, the reservoir serves as a critical asset for the Bureau of Land Management and highlights the ongoing efforts to ensure the safety and sustainability of water infrastructure in Wyoming.
Year Completed |
1969 |
Dam Length |
934 |
River Or Stream |
Little Sage Creek |
Primary Dam Type |
Gravity |
Surface Area |
132.3 |
Hydraulic Height |
21 |
Nid Storage |
380 |
Structural Height |
26 |
Outlet Gates |
None |
Hazard Potential |
High |
Foundations |
Unlisted/Unknown |
Nid Height |
26 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Jack Creek Above Coyote Draw
|
133cfs |
N Platte Riv Ab Seminoe Reservoir
|
269cfs |
Pass Creek Near Elk Mountain
|
149cfs |
Encampment River At Mouth
|
89cfs |
Muddy Creek Below Young Draw
|
0cfs |
Little Snake River Near Dixon
|
69cfs |
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.
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