Fox Reservoir Reservoir Report

Last Updated: December 13, 2025

Fox Reservoir, also known as Floyd Fox, is a privately owned water source located in Marion County, Oregon.


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Summary

Built in 1951, this earth dam reservoir serves primarily for irrigation purposes, with a capacity of 120 acre-feet and a normal storage of 104 acre-feet. Situated along Drift Creek, a tributary to the Willamette River, Fox Reservoir covers a surface area of 13.5 acres and has a drainage area of 1.31 square miles.

Managed by the Natural Resources Conservation Service, Fox Reservoir stands at a height of 25 feet with a hydraulic height of 23 feet. Despite its low hazard potential, the dam has not been rated for its condition assessment. Last inspected in February 2020, the reservoir has a scheduled inspection frequency of every 6 years. While primarily used for irrigation, Fox Reservoir also offers recreational opportunities for enthusiasts in the Aurora area, attracting visitors with its serene surroundings and water activities.

With its strategic location and vital role in water resource management, Fox Reservoir remains a crucial asset in ensuring water supply for agricultural purposes in the region. As climate change continues to impact water availability and quality, the maintenance and monitoring of reservoirs like Fox are essential for sustainable water management practices. Climate enthusiasts and water resource advocates can appreciate the significance of Fox Reservoir in addressing the challenges of water scarcity and climate variability in Marion County, Oregon.

Year Completed

1951

Dam Length

225

Dam Height

25

River Or Stream

DRIFT CREEK, TRIB TO

Primary Dam Type

Earth

Surface Area

13.5

Hydraulic Height

23

Drainage Area

1.31

Nid Storage

120

Structural Height

25

Hazard Potential

Low

Nid Height

25
       
Seasonal Comparison

Weather Forecast

Dam Data Reference

Condition Assessment

Satisfactory
No 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

High
Dams 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.