Doyen Reservoir Report
Nearby: Trabing Zezas Irrigation
Last Updated: December 13, 2025
Meet Doyen, a private water structure nestled in the picturesque landscape of Johnson, Wyoming, along the TRABING DRAW river.
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Summary
Completed in 1956, this Earth-type dam stands at a height of 25 feet, offering multipurpose functionality for fire protection, stock, and small fish pond needs. Despite its low hazard potential, Doyen's condition assessment reveals areas of concern, with a poor rating as of the last inspection in July 2019.
With a storage capacity of 127 acre-feet and a normal storage level of 68 acre-feet, Doyen covers a surface area of 10 acres and spans a length of 550 feet. The dam's spillway, of uncontrolled type, boasts a width of 50 feet for efficient water discharge. While the risk assessment indicates a moderate level of risk, there are no specific risk management measures in place, highlighting the importance of ongoing monitoring and maintenance to ensure the structure's integrity and safety. For water resource and climate enthusiasts, Doyen presents a fascinating case study in the intersection of human infrastructure and natural water systems.
Year Completed |
1956 |
Dam Length |
550 |
Dam Height |
25 |
River Or Stream |
TRABING DRAW |
Primary Dam Type |
Earth |
Surface Area |
10 |
Hydraulic Height |
20 |
Nid Storage |
127 |
Structural Height |
25 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
25 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Clear Creek Near Buffalo
|
30cfs |
Nf Powder River Below Pass Creek
|
50cfs |
North Fork Powder River Near Hazelton
|
3cfs |
Rock Creek Near Buffalo
|
70cfs |
Piney Creek At Kearny
|
113cfs |
Powder River At Sussex
|
144cfs |
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.
Doyen