Fish Creek Diversion Dam Reservoir Report

Last Updated: December 5, 2025

Fish Creek Diversion Dam, also known as the North Umpqua Project, is a concrete dam located in Toketee Falls, Oregon.


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Summary

Built in 1990, the dam serves a primary purpose of hydroelectric power generation on Fish Creek. With a height of 14 feet and a length of 200 feet, the dam has a storage capacity of 71 acre-feet and a maximum discharge of 13,500 cubic feet per second.

Managed by a public utility, Fish Creek Diversion Dam is regulated by the Oregon Water Resources Department and is subject to regular inspections and enforcement measures. The dam has a significant hazard potential, but its condition has not been officially assessed. Despite not having a formal Emergency Action Plan in place, the dam operators are required to meet safety guidelines and have emergency contacts updated as necessary.

Situated in Douglas County, Oregon, Fish Creek Diversion Dam plays a crucial role in providing renewable energy while also impacting the local ecosystem and water resources. Its presence contributes to the overall management of the Fish Creek watershed and showcases the intersection of water resource management and climate resilience in the region.

Year Completed

1990

Dam Length

200

Dam Height

14

River Or Stream

FISH CREEK

Primary Dam Type

Concrete

Surface Area

1.2

Hydraulic Height

9

Drainage Area

65

Nid Storage

71

Structural Height

17

Hazard Potential

Significant

Nid Height

17
       
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.