? Wild highway
Photo: Colorado Department of Transportation
Construction is complete on what Colorado officials call North America's largest wildlife crossing — passing over a busy stretch of Interstate 25.
Why it matters: The Greenland wildlife overpass covers a major migration zone for elk, mule deer, pronghorn, bears and mountain lions, Axios Denver's Alayna Alvarez writes.
For decades, the freeway sliced through their routes, raising the risk of collisions. The new system will cut wildlife-vehicle crashes by 90%, Colorado transportation director Shoshana Lew estimates.
At 209 feet long and 200 feet wide, the overpass spans six lanes of interstate traffic.