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I-90 Wildlife Bridges Coalition

The I-90 Wildlife Bridges Coalition formed in 2004 to ensure high-quality wildlife passage north to south across Interstate 90 in Washington's Cascades.

Building connectivity for wildlife in the Cascades

Artist's rendition of planned wildlife bridge at the Rock Knob near Lake Kecheelus.

Connecting habitat in the Cascades means making sure that large mammals can roam more freely north to south within Washington. The I-90 Project will improve a critical 15-mile stretch of interstate safer for people and wildlife along a busy passage between Snoqualmie Pass and Easton in the Cascades. It features the first-ever freeway wildlife passage in Washington.

The plan to improve connectivity here is a natural outcome of another historic project, The Cascades Conservation Partnership.

Administered by Conservation Northwest, the I-90 Wildlife Bridges Coalition formed to make sure the freeway upgrade incorporates over- and underpasses and wildlife bridges for wildlife, bridging the bottleneck barrier that Interstate 90 presents.

Endorsements of the project are many. Learn more at the Department of Transportation site:

"The I-90 corridor is a national treasure, and the wildlife overpass will be something that people will come to Kittitas County just to see. The I-90 project is a rare win-win scenario." — Bill Hinkle, 13th District State Representative
I-90 Wildlife Bridges Coalition steering committee

Alpine Lakes Protection Society
Biodiversity Northwest
Conservation Northwest
Kittitas Audubon Society
Seattle Audubon Society
Sierra Club
The Cascades Conservation Partnership

Endorsing organizations

American Rivers
Center for Tribal Water Advocacy
Defenders of Wildlife
Humane Society of the United States
The Nature Conservancy of Washington
Washington Environmental Council

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