Montana Launched U.S. 89 Wildlife Crossing Study

The state is examining safety improvements to reduce high collision rates along a critical corridor near Dome Mountain.

Updated on Sept. 23, 2026 in Wildlife

Screen-print poster illustration of a mountain highway corridor in Montana, with tall wildlife fencing along the road, in a retro style. — The Montana Department of Transportation is launching a feasibility study on U.S. 89 to install wildlife fencing and overpasses near Dome Mountain. AI Illustration. Upload story photo >

Live Poll

Should your local government invest in wildlife crossings to improve roadway safety?

The Montana Department of Transportation has initiated a feasibility study for a 5.5-mile stretch of U.S. Highway 89 to address frequent wildlife-vehicle collisions. This effort aims to improve safety for motorists traveling between Livingston and Gardiner.

Why it matters

Wildlife-vehicle crashes on this segment account for roughly 50% of total highway accidents, far exceeding the 10% statewide average. The study addresses the high risk posed to drivers by animals moving between public lands and the Yellowstone River.

The study covers a 5.5-mile stretch of U.S. 89, where wildlife involvement in crashes reached 50% compared to a 10% statewide average. Records from 2012 through 2021 show 74 crashes and 149 animal carcasses at the Dome Mountain site.

The players

Montana Department of Transportation

The state agency responsible for managing highway infrastructure and public safety initiatives across Montana.

The details

The project team is evaluating the installation of 8-foot-tall wildlife fencing designed to guide animals toward safer crossing points. Additional proposed measures include the construction of wildlife overpasses, the addition of escape ramps, and modifications to the Point of Rocks Bridge. These barriers and structures are intended to prevent animals from entering the roadway while allowing them to move safely through the corridor.

2012-2021: Historical data collection period for Dome Mountain site incidents.
September 23, 2026: Official launch of the feasibility study.
2027: Expected completion date for the current feasibility study.

The Home Front

This study follows a pattern set by federal environmental review protocols, which mandate rigorous assessments before major infrastructure changes. By seeking data-backed solutions, the state is aligning local transit improvements with broader efforts to protect high-traffic migratory corridors.

Drivers frequenting this stretch of U.S. 89 should remain vigilant for wildlife crossings, especially during dawn and dusk hours. Residents should track the study's progress through 2027 to stay informed on potential traffic pattern changes or future construction impacts.

The takeaway

Wildlife-vehicle collisions represent a significant safety concern for local families, with local accident rates five times the state average. Drivers should stay alert for crossing animals and monitor the state's progress on these safety infrastructure goals through the 2027 study completion.