Pioneer Crossing

The Utah Department of Transportation (UDOT) is improving Pioneer Crossing (State Route 145) to help reduce rush-hour congestion between I-15 and Redwood Road (State Route 68). 

The main construction effort for this project will add capacity with Flex Lanes by converting the existing shoulders and center median into additional travel lanes. To learn more about Flex Lanes, go to the What are Flex Lanes? tab.

Other improvements nearing construction on Pioneer Crossing include:

Additional travel lanes in each direction between Mill Pond Road and I-15, providing a total of four travel lanes in each direction for this section.

An additional westbound lane on Pioneer Crossing from Redwood Road to just west of Mountain View Corridor.

Installation of a new traffic signal at Medical Drive.

Lengthening existing turn-lane pockets and installing additional turn lanes at existing intersections.

The Pioneer Crossing corridor from Mountain View Corridor on the left to I-15 on the right in orange

Schedule

*Schedules are subject to change due to weather conditions and material availability.

Contact Information

To contact the public information team with questions: 

Hotline: 385-510-2700

Email: NWUtahCounty@utah.gov

When sending an email, please include “Pioneer Crossing Improved” in your subject line.

live
live
Active construction

South side work (spring-summer 2026) includes:

  • Storm drain and utility upgrades

  • Curb and gutter replacements

  • Sections of new pavement

planned
planned
Upcoming construction

Flex Lanes installation (summer 2026 to late 2026) includes:

  • Additional lanes open and install overhead Flex Lane signals and signage

  • Flex Lanes signal integration

Redwood Road to Mountain View Corridor improvements (beginning summer 2026) include:

  • Additional westbound lane on Pioneer Crossing from Redwood Road to just west of Mountain View Corridor

  • Installation of a new traffic signal at Medical Drive

  • Roadway improvements and restriping

complete
complete
Project milestones

  • Center median removed (fall 2025)

  • North side storm drain and pavement work completed (spring 2026)

Stay Informed

To receive update emails, please contact the public information team at the email address below and include "Updates" in the subject line.

Email: NWUtahCounty@utah.gov

*By providing our team with your email address, you are signing up for construction updates from all NW Utah County projects.

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