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The Wallis Annenberg Wildlife Crossing is a groundbreaking infrastructure project under construction over the U.S. Route 101, just outside Los Angeles, California. Once completed, it is set to become the largest wildlife crossing on the planet, spanning 210 feet (64 meters) in length and 174 feet (53 meters) wide—about the same breadth as the ten-lane superhighway it traverses. With an estimated cost of around $92 million, this wildlife bridge represents a significant investment in environmental stewardship, akin to traditional highway projects. The Federal Highway Administration has recognized the importance of such initiatives, earmarking $350 million in federal funds to support similar wildlife crossings across the United States.