In the Pacific Northwest the West Fork Grays River Fish Passage project will work with the Cowlitz Indian Tribe to remove derelict water intake infrastructure. The water intake structure structure
Something temporarily or permanently constructed, built, or placed; and constructed of natural or manufactured parts including, but not limited to, a building, shed, cabin, porch, bridge, walkway, stair steps, sign, landing, platform, dock, rack, fence, telecommunication device, antennae, fish cleaning table, satellite dish/mount, or well head.

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was constructed in 1961 with a channel spanning concrete dam and steel weir that directed water flow from the West Fork Grays River into a screened intake. Recent fish passage fish passage
Fish passage is the ability of fish or other aquatic species to move freely throughout their life to find food, reproduce, and complete their natural migration cycles. Millions of barriers to fish passage across the country are fragmenting habitat and leading to species declines. The U.S. Fish and Wildlife Service's National Fish Passage Program is working to reconnect watersheds to benefit both wildlife and people.

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surveys documented the intake as a severe partial barrier with a 33% passbility rating due to high velocities, turbulence and period it low flows.  The Cowlitz Indian Tribe proposes to utilize the recently completed West Fork Grays Design to facilitate the removal the weir and surrounding concrete infrastructure and replace the disturbed areas with an apex log jam to restore natural processes, attenuate sediment, scour a deep pool, create habitat complexity and provide perennial flow to the diversion side channel. The intake removal will also restore fish passage to over 15 miles of upstream spawning and rearing habitat. This project will benefit federally listed (threatened) Grays River populations of winter steelhead, coho, fall Chinook, and chum salmon.   

Quick Facts:

Project Status

In Development


WA, Pacific

NFPP Project Funding


Restoration Techniques

Weir Removal


15 Stream Miles Reopened

Project Partner Lead

Cowlitz Indian Tribe

Primary Species Benefited

Fall Chinook Salmon

West Fork Grays River fish passage barrier

The National Fish Passage Program combines technical expertise with a track record of success. 

Implemented primarily through the Service's Fish and Wildlife Conservation Offices, the National Fish Passage Program provides financial and technical assistance to partners across the country. Since 1999, the program has worked with over 2,000 local communities, Tribes, and private landowners to remove or bypass over 3,400 barriers to fish passage and reopen access to over 61,000 miles of upstream habitat for fish and other animals. Staff have expertise in fish migration and biology as well as financial, engineering, and planning assistance to communities, Tribes, and landowners to help them remove barriers and restore rivers for the benefit both fish and people. 

Fish passage project proposals can be initiated by any individual, organization, government, or agency. However, proposals must be submitted and completed in cooperation with a Fish and Wildlife Conservation Office. (Please note that fish passage projects being used for federal or state compensatory mitigation or required by existing federal or state regulatory programs are not eligible for funding through the National Fish Passage Program.) 

Contact a fish passage coordinator in your area to get started 


Contact Information



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