Colorado wildlife overpass linked to 91% drop in animal collisions: Report

 A network of wildlife crossings in Colorado has reduced collisions along Interstate 25 by approximately 85 percent. This system includes fencing, underpasses, and an overpass which opened in December 2025. Recent studies show a significant decline in wildlife-related crashes since the introduction of these measures. Various species, including elk and pronghorn, have begun using these crossings effectively. A network of wildlife crossings in Colorado has reduced collisions along Interstate 25 by approximately 85 percent. This system includes fencing, underpasses, and an overpass which opened in December 2025. Recent studies show a significant decline in wildlife-related crashes since the introduction of these measures. Various species, including elk and pronghorn, have begun using these crossings effectively.