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Los Angeles is opening the world’s largest wildlife bridge that crosses over a busy freeway

It will promote biodiversity and support the local mountain lion population.

A rendering of the Wallis Annenberg Wildlife Crossing.

On Earth Day, April 22, 2022, there will be a historic groundbreaking 35 miles northwest of downtown Los Angeles. Construction will begin on the world’s largest wildlife crossing, which will connect two parts of the Santa Monica mountains that have been long separated by the 10-lane 101 freeway.

Sixty percent of the $90 million bridge—named the Wallis Annenberg wildlife crossing—is being paid for by private donations and the rest will come from state funds set aside for conservation purposes.

The massive 210-foot long and 165-foot wide bridge will allow safe passage for mountain lions, coyotes, deer, lizards, snakes and other animals to the other side to allow them to find mates and food. Increasing the number of potential mates will work to increase the genetic diversity among the various species.

“There's a reason I wanted to support this crossing and issue this challenge: We need to move beyond mere conservation, toward a kind of environmental rejuvenation,” said philanthropist Wallis Annenberg, who donated $25 million to the project.

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