All Updates, Cougars, Crossings and Connectivity Projects, Featured News, Wallis Annenberg Wildlife Crossing
Steve Winter P-22 was found roaming the Hollywood Hills, miles away from other mountain lions. Scientists fitted the puma with a radio collar which recorded his location (Credit: Steve Winter) Inspired by a mountain lion isolated from potential mates, the world’s largest wildlife bridge is being built in Los Angeles to allow animals to roam…
11 Jul 2025
All Updates, Crossings and Connectivity Projects, Featured News, Press Coverage
The second and final stage of the Wallis Annenberg Wildlife Crossing begins in July with tasks far more challenging than the first phase. Part of this second phase involves building a tunnel along a 175-foot section of Agoura Road to connect the crossing to the Santa Monica Mountains, just west of Liberty Canyon Road. Details…
25 Jun 2025
All Updates, Featured News, Press Coverage, Wallis Annenberg Wildlife Crossing
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
All Updates, Crossings and Connectivity Projects, Featured News, Press Coverage, Wallis Annenberg Wildlife Crossing
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,…
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
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
