Montana Department of Transportation

Malcolm “Mack” Long, Director

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Public Involvement

I 90 Manhattan to Belgrade and Bozeman Hill Guardrail

project logo

Project Overview

The Montana Department of Transportation (MDT) is improving Interstate 90 as part of two construction projects between Manhattan and Livingston. The projects include rehabilitating the pavement and upgrading guardrails to prolong the life of the roadway and improve safety. Construction is anticipated to take place beginning in May and be completed in the fall 2021. project map

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I 90 Manhattan to Belgrade Project

The I 90 Manhattan to Belgrade Project includes rehabilitating the pavement and upgrading guardrail from the Manhattan Interchange (Exit 288) to about three miles east of the Belgrade Interchange (Exit 299).

Manhattan to Belgrade project map

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Improvements include:

  • Rehabilitating approximately 12 miles of pavement on Interstate 90.
  • Rehabilitating the pavement of the on- and off-ramps at Exits 298 and 299.
  • Upgrading guardrails.
  • Adding new:
    • Pavement markings
    • Signs and roadside markers (delineators)
    • Centerline and shoulder rumble strips

I 90 Bozeman Hill Guardrail Project

The I 90 Bozeman Hill Guardrail Project includes upgrading and installing new guardrail over the Bozeman Hill Pass. The project begins east of the Bozeman Trail Road Interchange (Exit 313) and ends about two miles east of the Flynn Creek Road Interchange (Exit 324).

Bozeman Hill project map

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What to expect during construction

For the safety of the public and workers, MDT encourages motorists to plan ahead, allow extra travel time, slow down and use caution through the work zones on Interstate 90.

  • Traffic will be reduced to one lane.
  • Speed limits will be reduced.
  • Wide loads will be restricted through the work zone.
Slow for the Cone Zone image

Stay Informed During Construction

MDT will notify the public about traffic impacts and work activities through the project website, local media, mailings, social media, and email and text notifications during construction. Questions and comments can be sent to Brandon@rbci.net or call the project hotline at 406-219-0640.

Current construction information and road conditions can be found on the MDT Travel Info App.

UPN 8756