Colorado’s Greenland wildlife overpass, now stretching across six lanes of I‑25 just south of Castle Rock, is officially open and already being treated as a win for both drivers and wildlife. The dirt‑topped structure reconnects roughly 39,000 acres of habitat and offers a broad, natural crossing designed for elk and pronghorn. State leaders say it closes a critical gap in a larger mitigation system that already includes underpasses and fencing along the corridor.
Official rollout and what it does
State officials are calling the I‑25 Greenland structure North America’s largest wildlife overpass. It measures about 200 by 209 feet and covers roughly 41,800 square feet, and crews finished seeding and landscaping the surface ahead of schedule, according…..