Fencing combined with wildlife over and underpasses in Banff National Park have reduced wildlife-vehicle collisions by 80%. Image: Karsten Heuer
Top actions | ... | ...

Sign Up For Email News Updates

Be the first to know about news, events and successes.
“The 40+ wildlife crossings built on U.S. Highway 93 on the Flathead Reservation of western Montana is the largest highway mitigation effort in the U.S. Support from Y2Y has helped share the successes (and engaging wildlife photos) of the U.S. 93 monitoring and science program.”


Peoples’ Way Partnership



Click here to see the latest updates on our Transportation work.

(Watch the Highway Wilding 23-minute documentary to learn more about the efforts Y2Y and its partners are taking to make our roads safer for people and animals.)


Bear running across road. Image: Kent Nelson
Wildlife must navigate across busy roads to continue their journey. Image: Kent Nelson
How did the grizzly bear, or the pronghorn, or the salamander cross the road safely? That is a question that Y2Y asks.


Roads, and in particular highways, as well as trains, are significant barriers to wildlife movement throughout the Yellowstone to Yukon region. Even in protected areas like Banff, Yoho and Kootenay national parks wildlife collisions on roads are an issue. In 2012, 12 grizzly bears were struck in the parks by motorists on roads with no form of wildlife-crossing structures. Another four were killed by trains. 2014 saw another two grizzlies taken out by the train.These barriers not only threaten the lives of people, but if wildlife cannot cross roads and connect to other populations it limits their genetic diversity, which will lead to long-term population decline.


Banff Overpass. Image Josh Whetzel
Wildlife structures through Banff National Park have reduced wildlife-vehicle collisions by 80%. Image: Josh Whetzel
Many measures to keep wildlife and people moving safely have had extraordinary results. Research conducted on fencing, as well as the wildlife over- and underpasses, built on Canada’s Trans-Canada Highway through Banff National Park shows that these structures have reduced wildlife-vehicle collisions in the park by 80 per cent. Additionally, these structures have enabled more than 140,000 animal crossings, which have proven to promote gene flow.

Other measures, such as movable remotely-triggered wildlife signs, are effective at alerting drivers to slow down to the presence of wildlife. This measure is highly effective for roads that are lined with private dwellings and drive-ways, which makes adding fencing and crossing structures impractical. These are just a few examples of many mitigation options.


As of 2013, some 1,000 miles (1,600 km) of highways across Alberta, Idaho, Montana and Wyoming are or are in the process of being modified to be safer for both wildlife and people thanks to the work of Y2Y and its partners. Despite this, there are thousands of miles of highway and railway line that threaten both people and wildlife. Y2Y is focused on tackling each of these barriers, one at a time.

Highway Projects Oct 3, 2016



Donate: Make a donation to help make roads and highways in the Yellowstone to Yukon region safer for wildlife and people. See how we use your donation dollars.

Add Your Voice: Sign up to receive our Action Alerts and add your voice to important conservation causes.


Alberta Environment and Parks, Alberta Transportation, American Wildlands, Annatum Ecological Consulting, BC Hydro Fish and Wildlife Compensation Program, BC Conservation Foundation, Bridger Teton National Forest, Caribou Targhee National Forest, Miistakis , Center for Large Landscape Conservation, Great Northern Environmental Stewardship Area, Greater Yellowstone Coalition, Idaho Department of Fish and Game, Idaho Master Naturalists, Jackson Hole Conservation Alliance,  Jackson Hole Wildlife Foundation, National Fish and Wildlife Foundation, Peoples’ Way Partnership, Road Watch in the Pass, The Nature Conservation, The Teton Conservation District,  University of Northern BC, Valhalla Wilderness Society, Volker Stevin, Western Transportation Institute and The Wildlife Conservation Society. 

Related Information:

Fencing and Wildlife Crossing Structures

Banff Wildlife Crossing Structures

Central Canadian Rocky Mountains

Cabinet-Purcell Mountain Corridor

Crown of the Continent


GET THE LATEST: Transportation News

Rewarding Collaborative Conservation

— Posted on Jun 03, 2015 08:31 AM in: Updates from the Field
Rewarding Collaborative Conservation

Confederated Salish and Kootenai Tribes accept the first ever Ted Smith Award for Collaborative Conservation at a ceremony in Missoula, Montana.

Read More ›

Persistence Earns Wildlife Fence for Highway 3

— Posted on Apr 09, 2015 09:20 AM in: Y2Y in the News
Persistence Earns Wildlife Fence for Highway 3

Through consultation with Y2Y, Miistakis Institute and Western Transportation Institute, Alberta Transportation has secured funding for wildlife fencing near Crowsnest Lakes along Highway 3.

Read More ›

Safe Passages, or How Did the Grizzly Bear Cross the Road?

— Posted on Mar 04, 2015 08:22 AM in: Y2Y in the News
Safe Passages, or How Did the Grizzly Bear Cross the Road?

Some great background on the Banff Wildlife Crossings Project, a Y2Y-inspired effort that has drastically reduced roadkill in Canada's oldest National Park.

Read More ›

Help make B.C. Highways Safe for Wildlife and People

— Posted on Dec 05, 2014 01:30 PM in: Take Action
Help make B.C. Highways Safe for Wildlife and People

Thousands of animals are killed on B.C.'s highways every year. In many cases, people are killed or hurt, and their vehicles are damaged.

Read More ›

Biologists Propose Wildlife Crossings for Highway 3

— Posted on Oct 22, 2014 01:30 PM in: General News
Biologists Propose Wildlife Crossings for Highway 3

Highway 3 is vital to transportation through the Crowsnest Pass but it’s a deathtrap for wildlife. In a presentation to council, conservation biologist Dale Paton said there are over 150 collisions between wildlife and vehicles on Highway 3 every year.

Read More ›