I-90: Belgrade to Bozeman logo

Project Overview

The Montana Department of Transportation (MDT) and partner Riverside Contracting Inc. are improving approximately 6.3 miles of Interstate 90 (I-90) as part of the I-90: Belgrade to Bozeman project. Work is anticipated to begin in April 2026 and be completed in one season, weather and other unforeseen factors permitting.

The purpose of this project is to extend the life of the roadway and enhance safety features along I-90 from just east of the Belgrade Airway Boulevard Interchange (Exit 299) to the North Rouse Avenue railroad overpass in Bozeman.

Planned improvements include:

  • Resurfacing the roadway by milling the existing surface, applying a new overlay, and finishing with a seal and cover (chip seal)
  • Upgrading pavement markings, signage, and guardrail
  • Constructing minor bridge improvements

Motorists can expect the following during construction:

  • Single-lane traffic at times
  • Nighttime milling and paving
  • Occasional width restrictions

Visit the Construction Updates page for more information.

Project Map

Map showing the project area which runs on Interstate 90 from Airway Blvd in Belgrade through North Rouse Avenue in Bozeman, with one bridge in the middle at ValleySpur Rd

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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Riverside Contracting logo

UPN 10253000