Billings Bypass project logo

Project Overview

Five Mile Road | Yellowstone River Bridge | Railroad Overpass | Johnson Lane Interchange | Johnson Lane Interchange - Railroad Overpass | Five Mile Road to US 87

The Billings Bypass project is a six-segment project that will result in a new arterial roadway connecting Lockwood to the Billings Heights. The new road will begin at the Johnson Lane Interchange on Interstate 90 (I-90) in Lockwood, extend north across the Yellowstone River, and connect to the Old Highway 312/US Highway 87 (US 87) intersection in the Billings Heights. As of 2026, three of the six project segments are complete. The new river crossing is available for public use via a temporary connection on Coulson Road and the newly reconstructed Five Mile Road to Old Highway 312.

Coming soon: Construction of the Johnson Lane Interchange (Segment 4) is scheduled to start in fall/winter 2026. Visit the web page for more information. Sign up for construction updates under Subscribe.
Johnson Lane Interchange project logo

Overall map of the Billings Bypass project area, including colored lines indicating the project limits for Segments 1-6.
Click the image for a larger view of the map.

This project is led by the Montana Department of Transportation (MDT) in cooperation with the Federal Highway Administration (FHWA), Yellowstone County, and City of Billings. DOWL is the lead project engineer and public information coordinator, and Morrison-Maierle is the lead bridge engineer. Kittelson and Associates performed traffic engineering and operational analyses.

Current Status:

  • Johnson Lane Interchange: MDT awarded Riverside Contracting Inc. a contract to construct this segment. Construction of the new interchange is anticipated to start in late 2026 and be completed by 2029, weather and other factors permitting. Because the interchange is being reconstructed into a new configuration, construction is expected to be completed over three seasons. Coordination with property owners, businesses, and other key stakeholders is ongoing. Please contact the project team by emailing billingsbypassXYZdowlABCcom or by calling 406-294-9668 if you have any questions or comments.
  • Johnson Lane Interchange – Railroad Overpass: The final design and right-of-way acquisition are in progress.
  • Five Mile Road to US 287: The final design is in progress.
  • Five Mile Road, Yellowstone River Bridge, and Railroad Overpass: These project segments are complete and open to the public.
    close up Map of Billings Bypass project
    Click the image for a larger view of the map

UPN 4199