McNary National Wildlife Refuge

McNary National Wildlife Refuge
Name	McNary National Wildlife Refuge
Iucn category	IV
Location	Benton County, Washington; Umatilla County, Oregon
Nearest city	Richland, Washington; Umatilla, Oregon
Area	15,000 acres
Established	1956
Named for	McNary Dam
Governing body	U.S. Fish and Wildlife Service

McNary National Wildlife Refuge is a protected wetland complex located along the Columbia River between Richland, Washington and Umatilla, Oregon. Established in the mid-20th century in association with McNary Dam, the refuge provides significant habitat for migratory waterfowl, shorebirds, and fish tied to Pacific Flyway routes. Managed by the U.S. Fish and Wildlife Service, the refuge intersects regional infrastructure and natural features including agricultural tracts, riparian corridors, and backchannels.

History

The refuge was authorized following construction of McNary Dam (completed 1954) and formal establishment in 1956 under federal water projects influenced by the Bonneville Power Administration and the U.S. Army Corps of Engineers. Early planning involved coordination with the National Wildlife Refuge System and congressional legislation such as acts authorizing river basin development linked to the Columbia Basin Project. Regional stakeholders included the Confederated Tribes of the Umatilla Indian Reservation, Benton County, Washington commissioners, and Umatilla County, Oregon officials. Historic uses of the Columbia River corridor by Indigenous nations intersect with later federal conservation policy driven by post‑war hydroelectric and navigation priorities, resulting in habitat mitigation and land acquisition programs administered by the U.S. Fish and Wildlife Service.

Geography and Habitat

The refuge spans islands, riparian sloughs, oxbow lakes, and backwater channels formed by the impoundment of the Columbia River by McNary Dam. It lies within the Columbia Plateau physiographic province and borders major transport corridors including Interstate 82, U.S. Route 395, and U.S. Route 730. Soils and hydrology reflect influences from the Yakima River confluence and seasonal flows regulated by upstream reservoirs such as Grand Coulee Dam and Bonneville Dam. Vegetation communities include emergent marsh, shrubsteppe transitions, cottonwood floodplain forests dominated by Populus trichocarpa and riparian willows, and managed wetlands used for waterfowl staging and agricultural cooperative farming projects tied to regional producers and commodity programs administered in coordination with Washington State Department of Fish and Wildlife and Oregon Department of Fish and Wildlife.

Wildlife and Ecology

McNary supports thousands of migratory birds on the Pacific Flyway including snow geese, Canada goose populations, mixed-species flocks of dabbling ducks and diving ducks such as mallard and canvasback. Shorebird assemblages include long-billed dowitcher and western sandpiper, while raptors such as bald eagle and peregrine falcon utilize thermals and river corridors. Aquatic fauna are linked to anadromous runs of Chinook salmon, steelhead, and coho salmon modified by dam passage at McNary and downstream fish ladders. Wetland productivity supports invertebrate communities including aquatic insects and crustaceans central to food webs that sustain migratory bird energetics. The refuge also provides habitat for mammals such as beaver, river otter, and mule deer, and serves as a monitoring site for invasive species concerns paralleling regional efforts by U.S. Geological Survey and state agencies.

Recreation and Public Use

Public use emphasizes wildlife observation, photography, environmental education, and regulated hunting within seasons set by U.S. Fish and Wildlife Service frameworks and state wildlife agencies. Trails and viewing platforms accommodate birdwatchers from nearby municipalities including Pasco, Washington and Hermiston, Oregon, and interpretive programs have been coordinated with local schools, Washington State University Tri-Cities outreach, and nonprofit partners such as Audubon Society chapters. Boating and fishing occur in designated areas with regulations informed by Pacific Fishery Management Council guidance and state fish and wildlife rules. Visitor services align with national refuge objectives balancing recreation with habitat protection.

Management and Conservation

Management follows adaptive strategies addressing reservoir regulation impacts from Bonneville Power Administration operations, migratory bird conservation under the Migratory Bird Treaty Act, and habitat restoration funded through mitigation agreements associated with hydroelectric projects. Active practices include water level management, moist‑soil vegetation manipulation, cooperative farming leases to provide food for waterfowl, invasive species control coordinated with the Invasive Species Advisory Committee frameworks, and monitoring in partnership with academic researchers from institutions like University of Washington and Oregon State University. Conservation priorities emphasize connectivity across the Columbia Basin for fish passage, riparian restoration to support endangered species recovery efforts, and climate adaptation planning informed by National Oceanic and Atmospheric Administration projections.

Facilities and Access

Facilities include parking areas, interpretive signs, observation blinds, and boat launches providing access to sloughs and backwaters, with access points reachable from Interstate 82 and regional highways. Management offices and volunteer programs coordinate with the U.S. Fish and Wildlife Service regional complex and partners such as The Nature Conservancy and local conservation districts. Nearby range of services in Pasco, Washington, Richland, Washington, and Umatilla, Oregon support visitor needs. Seasonal road conditions and Columbia River flows affect access; visitors are advised to consult refuge announcements and state travel advisories.

Category:National Wildlife Refuges in Washington (state) Category:National Wildlife Refuges in Oregon Category:Protected areas established in 1956