Deer Don't Wait: California's $20M Wildlife Bridge Already a Hit

Three mule deer just handed California’s newest wildlife overpass the ultimate endorsement: they showed up before the thing was even finished.

The $20 million bridge spanning I-97 in Siskiyou County was still under construction when camera traps caught the deer—along with a bobcat and other wildlife—already using it to cross the highway safely. It’s the kind of real-world validation that makes years of planning and engineering feel instantly worth it. But this isn’t just a feel-good moment. Between 2015 and 2020, vehicles killed over 50 deer and 16 elk in this corridor alone. Any one of those collisions could’ve seriously injured or killed a driver. The bridge exists because this stretch of highway—running about 20 miles south of Weed up toward Canada—bisects migratory routes for deer, elk, bison, and other animals with nowhere else to go.

What makes this project particularly smart is the fencing strategy. Once completed, 8-foot-high fencing will stretch 3 miles north and south of the bridge, essentially channeling wildlife toward the overpass instead of forcing them to take their chances crossing the asphalt. It’s not just about saving animals; it’s about keeping people safe too. The bridge itself will eventually be lined with trees across its entire span, creating a more natural corridor that encourages animals to use it confidently.

The fact that wildlife embraced the structure even with construction crews still around suggests something important: animals recognize safety when they see it. They’re not waiting for the finishing touches. The project is already doing what it was designed to do, and it hasn’t even officially opened yet. That’s not just success—that’s a blueprint worth replicating.