Montana Department of Transportation

Malcolm “Mack” Long, Director


View the Governor’s Coronavirus Task Force site for more information.

Orange Street roundabout in Missoula, MT Cottonwood Stucky roundabout Miles City roundabout Poplar roundabout


The Montana Department of Transportation uses roundabouts to improve safety at many state highway intersections. Roundabouts reduce traffic delays, speed and accidents. They are part of the Vision Zero plan to eliminate deaths and injuries on Montana highways.

This website includes resources and reminders for using a roundabout.

Roundabout diagram

Locations Map

locations map mage


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