Washakie Dike No. 1 Reservoir Report
Last Updated: December 15, 2025
Washakie Dike No.
°F
°F
mph
Wind
%
Humidity
Summary
1, located in Fremont, Wyoming, is a Federal-owned earth dam completed in 1935 for irrigation purposes along the South Fork Little Wind River. Standing at a height of 26 feet with a hydraulic height of 21 feet, this dam has a storage capacity of 10,300 acre-feet and serves as a critical water supply source for the region. With a hazard potential rated as high, the dam is regulated by the State of Wyoming and undergoes regular inspections to ensure its structural integrity.
Managed by the Bureau of Indian Affairs and maintained by the Sacramento District of the US Army Corps of Engineers, Washakie Dike No. 1 plays a vital role in water resource management within the area. With a drainage area of 92 square miles and a maximum discharge capacity of 43,000 cubic feet per second, the dam is designed to effectively control water flow and provide sustainable irrigation for agricultural activities. Despite its age, the dam's condition assessment remains unrated, highlighting the need for continued monitoring and maintenance to ensure its long-term reliability.
As a key infrastructure supporting water supply and irrigation in the region, Washakie Dike No. 1 plays a crucial role in sustaining the local ecosystem and economy. With its strategic location and high hazard potential, efforts to uphold the dam's safety and functionality are essential to safeguarding the surrounding communities and maintaining a reliable water source for future generations. The data on this dam serves as a reminder of the interconnectedness between water resources, climate resilience, and infrastructure management in addressing the challenges posed by a changing climate.
Year Completed |
1935 |
Dam Length |
593 |
Dam Height |
26 |
River Or Stream |
SOUTH FORK LITTLE WIND RIVER |
Primary Dam Type |
Earth |
Surface Area |
368 |
Hydraulic Height |
21 |
Drainage Area |
92 |
Nid Storage |
10300 |
Structural Height |
28 |
Hazard Potential |
High |
Nid Height |
28 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Sf L Wind Riv Ab Washakie Res
|
16cfs |
Bull Lake Creek Above Bull Lake
|
42cfs |
Wind River Near Crowheart
|
1630cfs |
Bull Lake Creek Near Lenore
|
831cfs |
Wind River Near Kinnear
|
378cfs |
Little Popo Agie River Near Lander
|
25cfs |
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.
Washakie Dike No. 1
North Popo Agie River