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Tacoma Power
Cowlitz Trout Hatchery Remodel
Tacoma Power is planning a major remodel of the Cowlitz Trout Hatchery, built in 1968 as part of fisheries mitigation for Mayfield and Mossyrock dams.
The multi-year project will modernize the hatchery to support fish health and survival, operational efficiency, infrastructure reliability and environmental stewardship. Schedule is tentative and subject to change.
Remodel Schedule
Planning & Design
Permitting, surveying, design and development of a long-term fish husbandry plan
Final Design & Permitting
Complete final design and permitting
Construction
Complete project construction and associated implementation activities
FAQ's
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The remodel will incorporate modern technology and design to improve fish health and survival, operational efficiency, infrastructure reliability and environmental stewardship. Specific improvements will be identified through planning and design.
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Yes. The hatchery is expected to remain operational throughout the remodel.
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Tacoma Power will follow applicable federal, state and local requirements to minimize environmental impacts while meeting fisheries mitigation requirements.
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We plan to raise the same mix of species with comparable or greater capacity to support current fish programs.
Learn more in the Fisheries and Hatcheries Management Plan.
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Long-term closures are not currently expected. Portions of the parking lot may temporarily close, and short delays may occur to accommodate construction traffic.
If a long-term closure becomes necessary, information will be posted onsite and on our River Flows and Lake Levels page.
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Bird predation measures will be evaluated during design. Existing measures include wires, netting, fencing, hazing and monitoring technology.
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No changes to the existing ADA access or ADA Fishing Site are currently planned.
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Use the form below to submit a question or comment about the Cowlitz Trout Hatchery Remodel.