Montana Department of Transportation

Malcolm “Mack” Long, Director


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

MDT News

Road Closures On I 15/I 90 Interchange Improvements

BUTTE, MONTANA - The Montana Department of Transportation (MDT) is
announcing closures of overpass bridges in the coming weeks. 

Lexington Avenue overpass bridge is closed and will remain closed for
approximately two weeks. Travelers should look for information on
message boards on and near the project. 

The Oregon and Sheridan
Avenue overpass bridges will be closed immediately after the
completion of work on Lexington Avenue and will remain closed for
three weeks for rehabilitation work. The approximate date of these
closures will be June 2, 2021 based on current scheduling. 

updates and to hear about closures, openings, and other construction
activities - text 1590 to 406-226-1603 to sign up for text updates or
email us at to be added to the project list. 

Alternative accessible formats of this document will be provided on
request. Persons who need an alternative format should contact the
Office of Civil Rights, Department of Transportation, 2701 Prospect
Avenue, PO Box 201001, Helena, MT 59620. Telephone 406-444-5416 or
Montana Relay Service at 711.