Elk, bear, frogs and other animals have used the overpass, which connects 39,000 acres of habitat, since its completion

Colorado officials have tracked herds of elk, bears, pronghorn and even northern leopard frogs ambling across its new wildlife overpass. According to a newly released report, the overpass, which acts as a bridge over a busy stretch of interstate, has cut wildlife-vehicle collisions by 91% since its completion 10 months ago.

“One of the most heartwarming moments for me was when [Colorado department of transportation] sent me a picture of an elk mama taking her calf under [Interstate-25],” Brandon Marette, a wildlife biologist for Colorado parks and wildlife, told CBS News. “All came to fruition in that one moment. That elk with her calf was just standing there in safety.”