Revolutionizing Highway Safety for Wildlife with the Colorado Wildlife Bridge
Interstate 25, the vital artery between Denver and Colorado Springs, is known for its traffic challenges. However, it’s not just drivers at risk; wildlife such as elk and bears frequently cross the highway to access the 39,000-acre habitat. Recognizing this, the Colorado Department of Transportation (CDOT) implemented a groundbreaking solution: the largest wildlife-only bridge in North America, completed in December 2025. In just nine months, the overpass has led to a staggering 91% reduction in wildlife-vehicle collisions.
Innovative Design for Safer Passage
Before the construction, dozens of animals lost their lives on this stretch every year, especially during migration seasons. The new overpass, which spans six lanes and is covered entirely in grass, provides safe passage for wildlife, reducing the risk to drivers and minimizing collision-related costs. This bridge is part of broader efforts in wildlife conservation across the U.S., including a handful more projects like underpasses and smaller animal crossings in Colorado.
As wildlife crossings become increasingly vital, explore how capturing world-first wildlife moments across diverse regions deepens our understanding of animal behavior.
Heartening Success Stories
The effectiveness of the project is highlighted by personal anecdotes. Brandon Marette, a wildlife biologist with Colorado Parks and Wildlife, shared with CBS News, “One of the most heartwarming moments for me was when CDOT sent me a picture of an elk mama taking her calf under I-25.” This illustrates the bridge’s essential role in fostering safe animal migration.
Source: thisiscolossal.com
Frequently asked questions
What is the wildlife bridge on I-25 known for?
The wildlife bridge on I-25 is known for achieving a 91% reduction in wildlife-vehicle collisions.
When was the Colorado wildlife bridge completed?
The Colorado wildlife bridge was completed in December 2025.
How does the I-25 bridge benefit wildlife and drivers?
The bridge provides safe passage for wildlife, reducing the risk to drivers and minimizing collision-related costs.
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