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Project Overview

The Montana Department of Transportation (MDT) and its partner Sletten Construction Company will improve three bridges in the Butte area and one in Warm Springs. This work is part of MDT’s ongoing commitment to maintaining safe and dependable infrastructure across Montana.

  • The Centennial Avenue bridge crosses over the railroad near the intersection with South Excelsior Avenue. Work will involve a full bridge reconstruction.
  • The Burlington Street bridge spans over Interstate 90 (I-90). Work includes a new bridge deck and structural improvements.
  • The Shields Avenue bridge lies between East Second Street and Texas Avenue and will undergo concrete repairs.
  • The I-90 frontage road in Warm Springs provides public fishing access on the east side of I-90.

The following construction schedule and detours are dependent on weather and other unforeseen factors.

  • Centennial Avenue bridge
    The full closure and detour begin the week of April 13 with completion expected in July.
  • Burlington Street bridge
    Motorists on I-90 can expect lane shifts and reduced speeds south of the Interstate 15 (I-15) interchange from May to October. The Burlington Street bridge over I-90 will be closed and a detour will be in place through construction.
  • Shields Avenue bridge
    The full closure and detour begin early June. Crews expect to complete work in late June.
  • I-90 frontage road bridge
    Closure begins early June, and work is expected to be completed in one week.
Map titled Butte Bridges. The map shows the Butte area with major routes including Interstate 90 and Interstate 15 intersecting near the center of 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.
Map titled Butte Bridges. The map shows the Butte area with major routes including Interstate 90 and Interstate 15 intersecting near the center of 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.

Stay Informed, Get Involved

MDT will provide updates to the public through these project webpages, local media, social media, and email and text notifications. See the sidebar to sign up for construction updates.

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UPN 9316001