Auzqui No. 1 Reservoir Report
Nearby: Auzqui No. 2 Busted Clutch
Last Updated: December 5, 2025
Auzqui No.
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Summary
1 is a privately owned structure located in Powder River, Wyoming, designed for fire protection, stock, or small fish pond purposes. This earth dam, completed in 1953, stands at 36 feet high and has a hydraulic height of 30 feet, with a storage capacity of 132 acre-feet. Situated on the Number Two Draw river or stream, this dam serves as a vital resource for the surrounding area, with a surface area of 9 acres and a normal storage capacity of 67 acre-feet.
Despite being classified as low hazard potential, Auzqui No. 1 has a fair condition assessment as of July 2017, with regular inspections occurring every 5 years. The dam features an uncontrolled spillway with a width of 60 feet, ensuring proper water management during high flow events. While the risk assessment indicates a moderate risk level, the structure meets regulatory guidelines and is under state jurisdiction for permitting, inspection, and enforcement.
Overall, Auzqui No. 1 plays a crucial role in providing water resources for fire protection and livestock while also contributing to the local ecosystem as a small fish pond. With its strategic location in Sheridan County, Wyoming, this dam stands as a testament to effective water management practices and serves as a valuable asset for the community.
Year Completed |
1953 |
Dam Length |
300 |
Dam Height |
36 |
River Or Stream |
NUMBER TWO DRAW |
Primary Dam Type |
Earth |
Surface Area |
9 |
Hydraulic Height |
30 |
Nid Storage |
132 |
Structural Height |
36 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
36 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Powder River At Arvada
|
156cfs |
Wild Horse Creek Near Arvada
|
0cfs |
Clear Creek Near Arvada
|
256cfs |
Piney Creek At Kearny
|
113cfs |
Rock Creek Near Buffalo
|
70cfs |
Clear Creek Near Buffalo
|
12cfs |
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.
Auzqui No. 1