Pioneer Crossing | I-15 to Redwood Road

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

  • Extending the outside travel lanes in each direction between Redwood Road and Mountain View Corridor, providing a total of three travel lanes in each direction for this section. 

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

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)

  • Storm drain and utility upgrades

  • Curb and gutter replacements

  • Sections of new pavement

Mill Pond Road bridge work (Monday through Thursday)

  • Nightly, 7 p.m. to 5 a.m.

  • See Impacts & Updates tab for lane closures and restrictions

planned
planned
Upcoming construction

Flex Lanes installation (summer 2026 to late 2026)

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

  • Flex Lanes signal integration

complete
complete
Project milestones

  • Project design and environmental analysis (fall 2024 - spring 2025)

  • Public hearing and comment period (spring 2025)

  • Project advertised and contractor selection (spring 2025)

  • 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

*You are signing up for construction updates from all NW Utah County projects.

 

Northwest Utah County Projects Facebook Group