Each of the ramps on the Main Street Interchange (Exit 309) will be closed for approximately two days at a time to remove and replace the pavement. The ramps will not be closed simultaneously and will reopen as soon as the new pavement is safe to drive on. The ramp closures are anticipated to begin the week of April 15. All work on the ramps is expected to take two weeks to complete, weather and unforeseen factors permitting.

Motorists should expect:

• Crossover traffic patterns on I-90.
• Both east and westbound traffic traveling on the same side of I-90.
• Interchange ramp closures.
• Traffic reduced to one lane in each direction.
• Flaggers or temporary signals directing traffic at times.
• Reduced speed limits.
• Wide load restrictions. Visit 511mt.net for the most up-to-date information.

Stay Informed During Construction

Current construction information and road conditions can be found on the MDT Travel Info App.
Visit Traveler Information to get the App.