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The Journal Gazette

  • Associated Press A mostly privately funded wildlife crossing will be built over U.S. Highway 101 to allow wildlife to pass to preserves in an effort to help raise wild animal populations.

Thursday, September 05, 2019 1:00 am

California highway gets wildlife crossing

Associated Press

LOS ANGELES – Like many urban singles, the mountain lion P-22 lives a solitary life in a too-small habitat. And he has a hard time finding a mate in the big city.

Famous for traveling across two freeways and making a huge Los Angeles park his home, the lonesome big cat has become a symbol of the shrinking genetic diversity of wild animals that must remain all but trapped by sprawling development or risk becoming roadkill.

Hoping to fend off the extinction of mountain lions and other species that require room to roam, transportation officials and conservationists will build a mostly privately funded wildlife crossing over a major Southern California highway. It will give big cats, coyotes, deer, lizards, snakes and other creatures a safe route to open space and better access to food and potential mates.

The span along U.S. 101 will only be the second animal overpass in a state where tunnels are more common. Officials say it will be the first of its kind near a major metropolis and the largest in the world, stretching 200 feet above 10 lanes of busy highway and a feeder road just 35 miles northwest of downtown LA.

“When the freeway went in, it cut off an ecosystem. We're just now seeing impacts of that,” Beth Pratt of the National Wildlife Federation told The Associated Press.

Scientists tracking mountain lions fitted with GPS collars found that roadways are largely trapping animals in the Santa Monica Mountains, which run along the Malibu coast and across the middle of Los Angeles to Griffith Park, where P-22 settled. The result of that isolation, researchers say, is imminent genetic collapse for mountain lions.

The $87 million bridge last month entered its final design phase. It's on track for groundbreaking within two years and completion by 2023, according to engineer Sheik Moinuddin.