ALBERTON, Mont. — The Montana Department of Transportation (MDT) and Frontier West will begin work on a project that will replace the westbound bridge over the Clark Fork River on Interstate 90 (I-90) near the Cyr Interchange, about five miles west of Alberton.
During the week of November 2, crews will begin building crossovers to accommodate two-way traffic on the eastbound side of the interstate while the new bridge is being constructed. Motorists should expect single-lane closures while the crossovers are being built.
Crews will return in spring 2027, weather and other unforeseen factors permitting, to begin replacing the structure. During construction, motorists should expect reduced speeds and both westbound and eastbound traffic traveling on the eastbound side of I-90. The on- and off-ramps at Exit 70 will remain open throughout construction. Temporary closures of the Clark Fork River may be necessary during removal of the current structure.
For the most up-to-date information regarding road conditions, please visit 511mt.net.
The public is encouraged to contact MDT Public Involvement by calling 406-444-6274 or emailing mdtprojectpi@mt.gov with questions or comments about the project.
MDT is a workforce of over 2,000 people across Montana determined to do all we can so that you arrive at your destination safely. Our mission is to build, operate, and maintain a safe and resilient transportation system. For more information, visit mdt.mt.gov.
This content is sourced from
Montana Department of Transportation
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