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The Wallis Annenberg

Wildlife Crossing

Rising over ten lanes of the 101 at Liberty Canyon, the Wallis Annenberg Wildlife Crossing opens for the animal world on December 2, 2026, reconnecting a fragmented landscape in the Santa Monica Mountains for all wildlife and pulling the region's cougars back from the brink of extinction.

Learn about the project.

Learn more about participating in ribbon-cutting events

“Wildlife crossings restore ecosystems that had been fractured and disrupted. They reconnect lands and species that are aching to be whole. I believe these crossings go beyond mere conservation, toward a kind of environmental rejuvenation that is long overdue.”

Wallis Annenberg

Chairman, President, and CEO of Annenberg Foundation

Reconnecting A Habitat Fractured By Freeways

For decades, the 101 has cut the Santa Monica Mountains off from the wild lands to the north. Spanning the freeway at Liberty Canyon and designed to blend seamlessly into the surrounding ecosystem, the wallis anneberg wildlife crossing gives wildlife a safe path between two worlds that were never meant to be separate, reconnecting an ecosystem and giving the animals that depend on it room to recover.

You’re going to see this ecological transformation… over one of the busiest freeways in the world — that, to me, is just such a hopeful statement for what’s possible. We can redeem a freeway.

— Beth Pratt, California Regional Executive Director, National Wildlife Federation

Follow construction progress real-time on our live-webcams!

Photo: Steve Winter/National Geographic

Video Stream Provided by: The John Logan Foundation

Tour Program

The National Wildlife Federation’s #SaveLACougars campaign now offers docent led tours at the Wallis Annenberg Wildlife Crossing, join us to learn about the history, vision, and design of the world’s largest wildlife crossing.

Get Involved

Volunteer, sign up for updates, or support the crossing and stewardship of the surrounding habitat

Learn More

Crossing FAQ

Coexistence FAQ

Commemorative Groundbreaking Booklet

"The Santa Monica Mountains Conservancy & MRCA are excited to enter this last critical phase in making a safe passage for wildlife across the 101 and delivering on our 30 plus years of work to preserve habitat linkages.”

“A lion alone, P-22 is living out the classic science-fiction narrative of the protagonist who wakes up to discover that he is the last of his kind.”

“Twenty years of research shows that the biggest conservation challenge facing the wildlife of the Santa Monica Mountains is isolation by roads and development. This forward-looking project will help to end the isolation and reconnect natural habitat.”

People Fixing The World: The World’s Largest Wildlife Crossing

August 11, 2026

Southern California becoming a hub for wildlife crossings

July 17, 2026

Wildlife bridge faces criticism—but challenges explain costs

April 2, 2026

We celebrate, honor, and respect the history and people of this land.

The Wallis Annenberg Wildlife Crossing is located on the homelands of the Chumash. We extend our gratitude for the wisdom and understanding they have given us in creating this crossing.

Indigenous people have used the animals as teachers for thousands of years.

— Alan Salazar, Fernandeño Tataviam Band of Mission Indians Elder; Chumash, Tataviam, and Pipimaram lineages