Animal crossings have been around for a while now. They are designed to allow animals to travel safely under and over busy highways and are covered in vegetation to maintain the animals’ habitat. They are popular all over Europe, with the first crossing originating from France in the 1950s. 
Over the years, the idea has spread to other parts of the world, with the United States being one of the latest to join in. In 2015, construction of the first wildlife bridge began. The bridge is to the east of Snoqualmie Pass in the Cascades and runs from Seattle to Boston. 
If significantly invested in, wildlife crossings could drastically reduce collisions on our highways, saving animals and reducing the financial burden to humans as well. In Banff, for example, the combined forces of fences and under/overpasses have reportedly reduced the rate of traffic accidents by 80 percent. In fact, a specific animal crossing in Banff National Park has so far reduced the cost of vehicle collisions by over $100,000, making it a great success.
Why are animal crossings important?
In the United States, about two hundred people die each year in more than one million car collisions, according to the National Highway Traffic Safety Administration. And what’s worse, the numbers keep growing: 
“Over the most recently reported 15-year period, wildlife-vehicle collisions have increased by 50 percent, with an estimated one to two million large animals killed by motorists every year,” says Rob Ament, the road ecology program manager at the Western Transportation Institute (WTI) at Montana State University.
These crashes are also expensive when accounting for vehicle repair, towing, human injuries and death, carcass disposal, and investigation of the accident by local authorities.
An elk-vehicle collision, for example, costs an average of $25,319, a deer-car collision is about $8,190, while moose-vehicle collisions cost $44,546 according to a paper from the WTI.