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

Johnson Lane Interchange project logo

Segment Overview:

The Johnson Lane Interchange (JLI) serves as a critical connection point between Lockwood, Billings, and Interstate 90 (I-90). As part of the multi-segment Billings Bypass project, MDT plans to reconfigure the JLI into Montana’s first diverging diamond interchange (DDI). A DDI is an innovative design proven to enhance safety, reduce congestion, and improve traffic flow and capacity.

Planned improvements include:

  • Reconfiguring the existing JLI into a DDI.
  • Reconstructing the I-90 bridges over Johnson Lane to accommodate the new interchange configuration. The interstate will maintain two lanes in each direction.
  • Upgrading sidewalk and Americans with Disabilities Act (ADA) facilities along adjacent streets to tie into the DDI sidewalk facilities.
  • Constructing roadway improvements on North Frontage Road, Old Hardin Road, Cole Street, and Becraft Lane to improve the operation of the new DDI.
  • Installing traffic signals and signage upgrades throughout the project area. Notably, new traffic signals will be installed at both ends of the DDI, at the Cole Street/Old Hardin Road intersection, and at the Johnson Lane/North Frontage Road intersection.
  • Adding a shared-use path through the DDI for pedestrians and bicyclists.
  • In preparation for construction, there is ongoing utility relocation work happening in the area.

View the video simulating traffic flow through the new Johnson Lane DDI

Map showing an aerial illustration of the proposed Johnson Lane Diverging Diamond Interchange (DDI). Blue and orange lines with arrows indicate how north and southbound traffic will move through the new DDI. Labels show the direction of Billings, Lockwood, and the Billings Heights in relation to the DDI. The footer includes a QR code to access the video simulation of the DDI, as well as the MDT and Billings Bypass logos.
Map of planned Johnson Lane Interchange diverging diamond interchange traffic flow.

Schedule/Status

  • MDT awarded Riverside Contracting Inc. a contract to construct the Johnson Lane Interchange segment of the Billings Bypass.
  • Minor activities are underway, including the relocation of some underground utilities.
  • Construction of the DDI is anticipated to start in late 2026 and will occur over three construction seasons, weather and other factors permitting. Phasing the work will allow crews to reconstruct both interstate bridges, build the new interchange, and complete improvements on adjacent streets while keeping traffic moving through the area.
  • To stay informed as construction progresses, please email billingsbypassXYZdowlABCcom or call 406-294-9668 to sign up for updates. You can also subscribe for text notifications by following the instructions in the “Subscribe” section of this webpage.
Riverside Contracting Inc. logo