Project Overview

 

The Utah Department of Transportation (UDOT) plans to construct a 13-mile-long northbound climbing lane on I-15 from the Kanarraville rest stop to the South Cedar Interchange, milepost 43 to 56. The project will widen I-15 through this area from two to three northbound lanes. The project will also reconstruct the northbound side of the Hamilton Fort interchange with a roundabout constructed on the east side of I-15 at Exit 51.  

 

Construction is expected to require two construction seasons, beginning in Spring 2025 and ending by December 2026. Construction schedules are subject to change due to weather conditions and material availability.

 

To join our email list for project updates, visit the "Sign Up for Updates" tab.

 

Schedule

Work Hours: 6 a.m. - 5 p.m.

Work Days: Monday through Friday

There may be intermittent one-lane closures during nighttime work hours of 5 p.m.- 7 a.m.

live
live
Construction: Spring 2025 - Winter 2025/2026

Construction began in spring 2025. 

Traffic is shifted on northbound I-15 during daytime work hours as crews build a third passing lane between mileposts 43 and 56. 

Earthwork is underway on the east side of I-15 near the Hamilton Fort Interchange to prepare for a new roundabout. 

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

planned
planned
Construction - Spring 2026 - Fall 2026

The bridge replacement at the northbound I-15 Hamilton Fort Interchange will begin in February 2026. 

Construction for a roundabout at Exit 51 will begin in spring 2026. 

Late Fall 2026 - Project Completion

complete
complete
Complete

Project design was completed in Winter 2024.

Contact Information

To contact the public information team with questions or concerns:

Hotline: 435-254-3305

Email: i15hamiltonfort@utah.gov

Stay Informed

To receive project updates, please contact the public information team at the email address above and enter "Project Updates" in the subject line.