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LA TIMES: World’s largest wildlife crossing reaches critical milestone. Now what?

After nearly three years of construction, the Wallis Annenberg Wildlife Crossing reached a critical milestone on Monday. The builders hope to start planting special native seeds this month, and then native plants that were grown from seeds collected nearby. The next and final phase of the project will include the temporary closure of Agoura Road…

7 Apr 2025

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The Guardian: ‘Even a freeway is redeemable’: world’s largest wildlife crossing takes shape in Los Angeles

Above the whirring of 300,000 cars each day on Los Angeles’s 101 freeway, an ambitious project is taking shape. The Wallis Annenberg wildlife crossing is the largest wildlife bridge in the world at 210ft long and 174ft wide, and this week it’s had help taking shape: soil. “This is the soul of the project,” says Beth Pratt,…

7 Apr 2025

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LA Times: New initiative aims to turbocharge wildlife-crossing construction across California

A vision to provide safe passage for mountain lions above 10 lanes of whizzing traffic near Los Angeles faced a foe: time. Genetically isolated pumas hemmed in by the 101 Freeway were showing birth defects and needed an outlet fast. A massive philanthropic challenge grant allowed the $92-million Wallis Annenberg Wildlife Crossing to advance rapidly…

29 Oct 2024

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LA Times: The world’s largest wildlife crossing is finally standing. Here is what’s coming next

The Wallis Annenberg Wildlife Crossing now spans the 101 Freeway in Agoura Hills, but weather issues have pushed completion to sometime in 2026. • Builders plan to cover the crossing with “engineered” soil inoculated with local microbes early next year so more than 5,000 native shrubs and wildflowers can be planted. • But the crossing…

23 Aug 2024

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Washington Post: Amid roadkill epidemic, California builds world’s largest wildlife bridge

AGOURA HILLS, Calif. — The 10-lane freeway that slices through this part of Southern California is one of the busiest in the country, ushering more than 300,000 cars across the greater Los Angeles area every day. For drivers, it’s a nightmare: This stretch of Highway 101 is known as the “highway from hell,” the infamous host of the nation’s worst…

27 May 2024

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CBS News: How wildlife crossings protect both animals and people

To protect the movement of wildlife impeded by busy roadways, a series of manmade overpasses and underpasses throughout the United States helps animals big and small safely get across the street, preventing collisions and saving lives. About 1,500 of these structures already have been built. Correspondent Conor Knighton looks at how they have protected genetic…

21 Apr 2024