Fish Creek Forebay Reservoir Report

Last Updated: December 5, 2025

Fish Creek Forebay is a private hydroelectric facility located in Oregon, near Toketee Falls.


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Summary

Built in 1951 by Pioneer Service & Engineering, this earth dam stands at 14 feet high and has a storage capacity of 110.3 acre-feet. The dam's primary purpose is to generate hydroelectric power, utilizing an uncontrolled spillway with a width of 75 feet.

Managed by the Federal Energy Regulatory Commission, Fish Creek Forebay has a high hazard potential and a moderate risk assessment rating. While the condition assessment is not available, the emergency action plan was last revised in April 2021. The dam's location in Douglas County, Oregon, makes it a crucial component of the region's water resource infrastructure, providing not only power but also water storage and flood control capabilities.

For water resource and climate enthusiasts, Fish Creek Forebay presents an intriguing case study in hydroelectric infrastructure and dam management. With its historical significance, engineering design, and regulatory oversight, this facility serves as a focal point for understanding the intersection of water resources, energy generation, and environmental stewardship in the Pacific Northwest.

Year Completed

1951

Dam Length

2200

Dam Height

14

River Or Stream

Fish Creek Canal

Primary Dam Type

Earth

Surface Area

9

Hydraulic Height

10

Nid Storage

110.3

Structural Height

14

Hazard Potential

High

Foundations

Soil

Nid Height

14
       
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.