Evans Far West Pond Dam Reservoir Report
Nearby: Stevenson Dam Parker Reservoir Dam
Last Updated: December 15, 2025
Evans Far West Pond Dam, located in Yakima, Washington, serves as a crucial irrigation structure in the region.
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Summary
Completed in 1997, this earth dam stands at a hydraulic height of 18 feet and stretches 340 feet in length, providing a storage capacity of 43 acre-feet. The dam is primarily owned and regulated by a private entity, with oversight from the Washington Department of Ecology. Despite its importance for irrigation purposes, the dam is classified as having a high hazard potential and is currently assessed to be in poor condition.
The dam's location along the unnamed tributary of Wide Hollow Creek underscores its significance in managing water resources in the area. With a normal storage capacity of 21.7 acre-feet and a maximum discharge rate of 750 cubic feet per second, the dam plays a crucial role in ensuring water availability for agricultural activities. However, the dam's poor condition raises concerns about its long-term reliability and the potential risks it poses to downstream communities in case of failure. Regular inspections and maintenance are essential to mitigate these risks and safeguard the surrounding environment.
In light of its high hazard potential and poor condition assessment, stakeholders involved in the management of Evans Far West Pond Dam must prioritize the implementation of risk management measures and emergency action plans. Enhanced monitoring, maintenance, and potential rehabilitation efforts are crucial to ensure the dam's structural integrity and prevent potential hazards to the local community and environment. As water resource and climate enthusiasts, it is imperative to stay informed about the status of critical infrastructure like Evans Far West Pond Dam and advocate for sustainable water management practices to address the challenges posed by aging dams in the face of changing climate conditions.
Year Completed |
1997 |
Dam Length |
340 |
River Or Stream |
Unnamed Tr - Wide Hollow Cr |
Primary Dam Type |
Earth |
Surface Area |
2.2 |
Hydraulic Height |
18 |
Drainage Area |
0.81 |
Nid Storage |
43 |
Structural Height |
18 |
Hazard Potential |
High |
Foundations |
Soil |
Nid Height |
18 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Ahtanum Creek At Union Gap
|
197cfs |
Yakima River Above Ahtanum Creek At Union Gap
|
14200cfs |
Toppenish Creek Near Fort Simcoe
|
57cfs |
Yakima River At Umtanum
|
6380cfs |
American River Near Nile
|
809cfs |
Klickitat River Above West Fork Near Glenwood
|
830cfs |
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.
Evans Far West Pond Dam