This is a very cool idea: an Interstate overpass for wildlife. Much better than sending them under the road through a dark, wet tunnel.
I-70 Wild Byway | Growing a Bridge
Colorado is ready to grow its first vegetated wildlife overpass spanning our interstate highway, allowing safe passage for animals and drivers.
A modular, cost-effective, forward-thinking Byway for East Vail Pass has been designed by world renowned architect, Ted Zoli, through an international contest. Its surface has four landscape bands: Forest, Meadow, Shrub and Scree — habitat corridors for the largest possible variety of wildlife species.