Slope stability project on Montana 135 at St. Regis

The Montana Department of Transportation and Thompson Contracting, Inc. will begin work to stabilize the rock slope on Montana 135 about 14 miles north of St. Regis this week.

Work will include rock scaling, ditch cleanout, installation of rock dowel and replacement of the existing concrete barrier rail. During construction, a 12-foot width restriction will be in place for north and southbound traffic. The public can expect some delays and possible lane with traffic controls in place. MDT encourages the public to be cautious at all times and plan for additional travel time.

Construction is anticipated to be mostly compete later this fall, with some work taking place in Spring 2023.

The public in encouraged to watch for variable message signs along the route and download MDT’s mobile app “MDT 511” or visit 511mt.net for the most up to date construction information.

If you're driving and want to check in, pull safely off the road and dial 511. Please contact Missoula District Public Relations Specialist, Megan Redmond at (406) 396-1978 with any questions or comments.

MDT wants everyone to remember the three S’s of work zone safety: speed, space and stress. Slow down in work zones and follow speed limits. Leave enough room around your vehicle. Stay calm and pay attention to the road.