Project Overview

The Montana Department of Transportation (MDT) and Riverside Contracting Inc. is improving approximately eight miles of Interstate 15 (I-15) near Wolf Creek. The project area begins five miles south of Wolf Creek and extends north to the Augusta Interchange.

Project Map

The project will rehabilitate the roadway, update existing guardrail and concrete barriers to meet modern standards, and upgrade storm drainage in the town of Wolf Creek.

Construction began in spring 2023 and is expected to be completed in 2025.

Work completed in 2023 included:

  • Removing approximately two feet of degraded roadway material on the southbound lanes of I-15 and paving a new driving surface.
  • Upgrading concrete barrier rails, metal guardrails, and signage on the southbound lanes.
  • Adding road delineators (roadside markers) on the inside curves of the southbound lanes.
  • Improving erosion control features.

Planned improvements for 2024-25:

  • Removing and replacing approximately two feet of degraded roadway material on the northbound I-15 lanes and resurfacing adjacent ramps, crossroads, and pullouts.
  • Upgrading concrete barrier rails, metal guardrail and signage on the northbound lanes.
  • Adding roadside markers on the northbound lanes
  • Replacing right-of-way fencing and cattle guards as needed.
  • Adding new pavement markings.
  • Lining and repairing I-15 culverts.
  • Improving erosion control features.
  • Storm drain upgrades in Wolf Creek.
  • Updating curb ramps on Walsh Street, between Main Street and Recreation Road.

Why is the project needed?

MDT identified this stretch of interstate as being worn down and in need of repairs. The purpose of this rehabilitation project is to extend the service life of the roadway, provide a smoother driving surface, and improve signage and markings for the roadway. The project will also upgrade roadside barriers and reduce issues that require regular maintenance within the corridor. The upgraded signage and roadway markers were included as part of this project to enhance safety features along this corridor.

What to expect during construction construction (Spring – Fall)


Interstate 15

  • Traffic will be reduced to one lane in each direction.
  • Both north and southbound traffic will travel on the same side of I-15.
  • Crossover traffic patterns will be in place throughout construction.
  • Speed limits will be reduced.
  • A 14-foot width restriction will be in place (visit for the most up-to-date information.)
  • Access to Wolf Creek and Augusta Interchange on- and off-ramps will be maintained.
  • The work zone will be eight miles long.
  • Wide loads are staged and allowed to travel through the project area between 3 a.m. and 6 a.m. Monday through Friday.

Construction is anticipated to begin in the spring and be completed each fall. The interstate will return to normal traffic configurations throughout the winter months.

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.

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

UPN 7617000