Video: Wildlife crossings built with tribal knowledge drastically reduce collisions

Authored by and submitted by Sariel007

The Confederated Salish and Kootenai tribes collaborated with the Montana Department of Transportation to design and build one of the largest networks of wildlife highway crossings in the U.S.

Previously known as one of Montana’s most dangerous roads, Highway 93 was upgraded to include 42 wildlife crossings that were built based on Indigenous traditional knowledge and values.

According to a 2015 study, animal collisions declined by 71%.

Today, more than 22,000 animals use these wildlife crossings annually, camera traps show.

FLATHEAD NATION, Montana — In 1989, when the Montana Department of Transportation proposed a plan to address safety concerns on Montana’s notoriously dangerous Highway 93, their answer was to expand it to five lanes. Including a passing lane, the highway would run through the entire Flathead Indian Reservation, growing by more than 90 kilometers (56 miles) across sovereign Indigenous land.

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Community tribal members raised concerns about how such a road could pose more danger, not just for wildlife, but also for children and school buses that cross the highway. The protection of wildlife is also part of a generational duty that tribes take upon themselves to maintain a healthy ecosystem and nurture the connection to their culture.

So they came up with a different plan.

“Because this was happening on a stretch of road that passed through a sovereign nation … they had this veto card in their hand to be able to say, ‘No, we’re not doing that. That’s not how we do things here,’” said Michael Jamison, campaign director of the National Parks Conservation Association.

Working in partnership with an architectural firm in Seattle, Jones & Jones, the Salish and Kootenai tribes used Indigenous knowledge provided by tribal wildlife ecologists to design safe highway crossings for wildlife and people. The plan included 42 crossings. At the end of 2000, the MDT signed a memorandum to begin working with the tribes on the improved highway.

Today, the results speak for themselves.

Camera traps placed along 29 crossings confirm that more than 22,000 animals use the crossings annually.

“Within two years, our tribal department and wildlife department put up cameras and saw with astonishment how much they were used by these animals,” said Tony Incashola, former director of the Selis Qlispe Culture Committee. “The fatality on the highways was reduced tremendously.”

A 2015 study found that road collisions had been reduced by 71%.

Road experts and tribal leaders interviewed by Mongabay point to highway crossings as not just a success for safety and wildlife, but for forging working relationships and practices that can be applied in tackling other challenges.

“With a bit of compromise, a bit of creativity and a bit of extra elbow grease,” Jamison said, “you can actually solve much bigger problems that have to do with culture, meaning and values.”

Banner Image: A whitetail deer pictured using one of the many highway underpasses with a butterfly resting on their head. Image courtesy of the CSKT & MDT.

Alexandra Christy is a digital journalist and storyteller. You can find her work at

Mike DiGirolamo is Mongabay’s audience engagement associate. Find him on Twitter @MikeDiGirolamo, Instagram or TikTok via @midigirolamo.

PlannerSean on November 20th, 2022 at 17:40 UTC »

There are a number of these in Banff National Park and they work excellently

ResplendentShade on November 20th, 2022 at 16:47 UTC »

I saw a lot of these being built years ago when staying with friends outside of Missoula for a summer, that area definitely has more indigenous population than any other I've visited in the US. Glad to see these are working as intended, western Montana is a very special place with amazing wildlife.

Gingrpenguin on November 20th, 2022 at 16:09 UTC »

What was the knowledge?

Article is quite vague and the only pictures provided is a fairly standard looking tunnel and bridge