Walker Reservoir 2 Reservoir Report
Last Updated: December 13, 2025
Walker Reservoir 2 in McMinnville, Oregon, is a privately owned earth dam structure completed in 1977 for irrigation purposes.
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Summary
With a height of 10 feet and a storage capacity of 200 acre-feet, this reservoir plays a critical role in providing water for agricultural activities in the region. Located along the South Yamhill River, this reservoir covers a surface area of 17.7 acres and has a normal storage capacity of 152 acre-feet.
Managed by the Natural Resources Conservation Service, Walker Reservoir 2 has a low hazard potential and is currently rated as "Not Rated" in terms of its condition assessment. Despite its age, the dam has a structural height of 12 feet and a hydraulic height of 7 feet, ensuring its stability and functionality. The last inspection conducted in April 2013 found no significant issues, with an inspection frequency of every 6 years.
As part of the state-regulated infrastructure, Walker Reservoir 2 is subject to regular inspections, permitting, and enforcement by the Oregon Water Resources Department. Its strategic location and reliable water supply make it a crucial resource for sustaining agricultural activities in the area. Enthusiasts of water resources and climate will find Walker Reservoir 2 to be a fascinating example of how private ownership and state regulation can work together to manage and utilize water resources effectively for irrigation purposes.
Year Completed |
1977 |
Dam Length |
2740 |
Dam Height |
10 |
River Or Stream |
SOUTH YAMHILL RIVER, TRIB TO |
Primary Dam Type |
Earth |
Surface Area |
17.7 |
Hydraulic Height |
7 |
Nid Storage |
200 |
Structural Height |
12 |
Hazard Potential |
Low |
Nid Height |
12 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
South Yamhill River At Mcminnville
|
8310cfs |
Willamette River At Salem
|
35800cfs |
Luckiamute River Near Suver
|
3790cfs |
Willamette River At Newberg
|
52600cfs |
Tucca Creek Near Blaine
|
123cfs |
Zollner Creek Near Mt Angel
|
320cfs |
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.
Walker Reservoir 2