Safe Travels

Patty Garvey-Darda loves pikas. These are small mammals. They are related to rabbits. “I think they are about the cutest animals alive,” she told TIME for Kids. Garvey-Darda is a wildlife biologist. She works for the United States Forest Service. She wants to protect pikas and other creatures from a common threat: vehicles × vehicle CAVAN IMAGES/GETTY IMAGES a machine used to carry people and things from one place to another (noun) My family has three vehicles: a car, a truck, and a motorcycle. . The Federal Highway Administration says more than a million roadway accidents involving animals happen in the U.S. each year. These collisions hurt wildlife. They also hurt people.

TRAFFIC STOP Cars stop for a deer as it crosses a street in Boulder, Colorado.

One solution to this problem? Wildlife crossings. In the U.S. and around the world, bridges and underpasses are being built to help animals safely cross roads.

Global Solution

Banff National Park is in Alberta, Canada. The park’s wildlife crossings are very successful. They were completed in 2014. The crossings include 38 underpasses and six overpasses, or bridges. They prevent the park’s animals from being hit while crossing the Trans-Canada Highway. The highway bisects × bisect LEW ROBERTSON—GETTY IMAGES to divide into two parts (verb) He used a knife to bisect the pizza. the park. The group Parks Canada says the crossing system has been effective. The system has reduced collisions with wildlife by more than 80%.

WATCH OUT! A mother bear and three cubs walk on a bridge meant for vehicles in Fallon, Montana.

People study the Banff crossings. They are a guide for new construction projects, Rob Ament says. He works for the Western Transportation Institute. That’s at Montana State University. Ament notes Banff’s “high quality of design.” This includes fencing. That fencing directs animals away from roads.

SUCCESS STORY Banff National Park in Alberta, Canada, is a model for wildlife crossings around the world.

Ament is using his expertise on wildlife crossings for a project. The project is in Assam. That’s a state in India. One of the state’s highways is on the border of Kaziranga National Park. “Animals leave the park to go up a dry hill during monsoon × monsoon ARUN ROISRI—GETTY IMAGES a period of wind and heavy rain (noun) A monsoon hit the island. season,” Ament says. “That means they have to cross the highway.” Plans are in the works for a safe pathway beneath it.

Under Construction

Wildlife crossings have been built in several U.S. states. These places include Arizona, Utah, and Wyoming. In Washington State, Garvey-Darda is part of a major project. She’s helping to design a set of about 20 wildlife crossings. “Banff has been the best model for us,” she says. Washington’s crossings are being built along a 15-mile stretch of Interstate 90 (I-90). That’s a long highway. This section of I-90 bisects the Cascade mountain range. The highway has disrupted animal migrations in the area. All 20 crossings are expected to be completed by 2029.

IN PROGRESS An overpass for wildlife is built on I-90 in 2016. This highway runs through Washington State.

So far, six underpasses and one overpass have been built. Garvey-Darda says these crossings have made a difference. “We now have close to 5,000 deer and elk going through the undercrossings,” she says. “All of these animals were potential accidents.”

This spring, Washington locals can plant vegetation on the I-90 overpass. Garvey-Darda says the plants will encourage animals, including her beloved pika, to use the crossings. “It’s important to be proactive × proactive PORTRA—GETTY IMAGES acting early to prevent problems (adjective ) I try to be proactive by starting my homework as soon as I get home. ,” she says, “and not wait until a species is endangered.”