Atop a gigantic wildlife bridge in California this week, butterflies filled the air. A red-tailed hawk sailed above as a slight breeze ruffled the 6,000 native plants, including poppies and purple sage. You’d never guess that below the quiet expanse of rocks and plants, a 10-lane freeway ferries 400,000 cars each day.
When the project broke ground four years ago, enthusiasm was high. The wildlife crossing in northern Los Angeles county would be the largest of its kind in the world, providing safe passage for mountain lions, bobcats and lizards.
