World's Largest Wildlife Crossing Nears Completion
2025-06-22

Three years in the making, the Wallis Annenberg Wildlife Crossing, the world's largest wildlife overpass, is nearing completion. Located in Agoura Hills, California, this nearly one-acre bridge spans a 10-lane section of US 101, aiming to reconnect the bisected Santa Monica Mountains National Recreation Area. The bridge structure is finished, and crews are now adding 6,000 cubic yards of specialized soil and planting 5,000 native plants to create a thriving wildlife habitat. This project is crucial for protecting mountain lions and other animals from highway collisions, enhancing their habitat connectivity, and ensuring their long-term survival.
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