Plum Tree Reservoir Report
Nearby: Strickland Pond Dam Bensons Pond Dam
Last Updated: December 15, 2025
Plum Tree is a privately owned earthen dam located in Campbell County, Wyoming, specifically in the city of Powderville.
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Summary
Built in 1955, the dam stands at a height of 36 feet and serves multiple purposes, including fire protection, stock, and a small fish pond. It has a maximum storage capacity of 111 acre-feet and a normal storage capacity of 72 acre-feet, with a surface area of 7 acres.
The dam's primary source is Plum Tree Draw, and it is regulated by the State Engineer's Office in Wyoming. Despite its low hazard potential and fair condition assessment, the dam is inspected every 5 years to ensure its structural integrity. It features an uncontrolled spillway with a width of 50 feet and no outlet gates. The risk assessment for the dam is considered moderate, and it is under the jurisdiction of the Omaha District of the US Army Corps of Engineers.
For water resource and climate enthusiasts, Plum Tree represents a unique example of a multi-purpose dam supporting various water-related activities in the region. Its historical significance, combined with its moderate risk assessment and state regulation, make it a noteworthy structure for those interested in water resource management and climate resilience. The dam's location in Campbell County, Wyoming, further adds to its appeal for those studying water infrastructure in the American West.
Year Completed |
1955 |
Dam Length |
368 |
Dam Height |
36 |
River Or Stream |
PLUM TREE DRAW |
Primary Dam Type |
Earth |
Surface Area |
7 |
Hydraulic Height |
31 |
Nid Storage |
111 |
Structural Height |
36 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
36 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Little Powder River Ab Dry Creek
|
1cfs |
Powder River At Moorhead Mt
|
60cfs |
Clear Creek Near Arvada
|
256cfs |
Wild Horse Creek Near Arvada
|
0cfs |
Powder River At Arvada
|
314cfs |
Stonepile Creek At Mouth
|
3cfs |
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.
Furtick Pond Dam