Little Robber Det. Dam X Reservoir Report
Last Updated: December 5, 2025
Little Robber Det.
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Summary
Dam X, located in Carbon County, Wyoming, serves as a critical debris control structure along the Little Robbers Gulch. Owned and regulated by the Bureau of Land Management, this gravity dam stands at a hydraulic height of 36 feet and a structural height of 48 feet, with a storage capacity of 402 acre-feet. Completed in 1953, it plays a pivotal role in managing water resources and ensuring flood protection in the region.
Despite its essential role, Little Robber Det. Dam X is currently rated as having a high hazard potential and poor condition. With a risk assessment of 2 (out of 3), the dam requires immediate attention and maintenance to mitigate potential safety risks and ensure its long-term effectiveness. The last inspection in August 2020 highlighted the need for improvements, presenting a clear call to action for stakeholders and authorities to address the dam's structural issues and bolster its resilience in the face of climate challenges.
As water resource and climate enthusiasts, it is crucial to recognize the significance of structures like Little Robber Det. Dam X in safeguarding communities and ecosystems. By prioritizing maintenance and risk management measures, we can ensure the continued protection of vital water resources and the resilience of our infrastructure in the face of a changing climate.
Year Completed |
1953 |
Dam Length |
765 |
River Or Stream |
Little Robbers Gulch |
Primary Dam Type |
Gravity |
Surface Area |
37 |
Hydraulic Height |
36 |
Drainage Area |
8.1 |
Nid Storage |
402 |
Structural Height |
48 |
Outlet Gates |
None |
Hazard Potential |
High |
Foundations |
Unlisted/Unknown |
Nid Height |
48 |
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.
Little Robber Det. Dam X
Muddy Creek