Map titled Butte Bridges. The map shows the Butte area with major routes including Interstate 90 and Interstate 15 intersecting near the center Butte. Three bridge closure locations are highlighted: Centennial Avenue Bridge to the west, Shields Avenue Bridge near the north, and Burlington Street Bridge to the southeast near the intersection of Interstate 90 and Interstate 15. Orange dots pinpoint the bridges being closed. Dashed blue lines indicate detour routes. A dotted orange line indicates the closure area on Shields Avenue. An inset map on the right shows the Warm Springs Bridge location northwest of Butte near Interstate 90, with nearby reference points including Deer Lodge to the north and Butte to the south. A legend identifies bridge closures, the Shields Avenue closure segment, and detour routes, and a compass arrow indicates north.
  • May 13 2026

BUTTE, Mont. — The Montana Department of Transportation (MDT) and its partner Sletten Construction Company have updated the construction schedule on two bridge improvement projects in the Butte area, weather and other factors permitting. The work is part of an effort to preserve and extend the life of key structures while enhancing safety for motorists.

Construction has begun on Centennial Avenue over the railroad. Full closures and detours are expected to be in place through mid-October.

Construction is expected to begin the week of May 11 on the Burlington Street bridge over Interstate 90 (I-90). Motorists on I-90 can expect lane shifts and reduced speeds from May through mid-August. Full closures and detours will be in place through construction.

Motorists are encouraged to watch for signage, follow posted speed limits in work zones, and plan for additional time when traveling through the area.

To receive project updates via text, text BUTTE to 844-764-2126.* 

The public is encouraged to contact Laura Langdon at 406-447-3354 with questions or comments about the project.

Those interested in learning more are encouraged to visit the project webpage at mdt.mt.gov/pubinvolve/buttebridges. For more information about active MDT projects around the state, please visit our website and MDT’s five-year Tentative Construction Plan.

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.

*Note: Message and data rates may apply. Four messages/month. Reply STOP to opt-out anytime. Reply HELP for help. Texting alerts are not managed by MDT and may have different privacy and security policies. Terms and Privacy Policy can be found at simpletexting.com/terms.

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Tags: News Releases and Construction