I-15 | Hamilton Fort | Rebuild
I-15 | Hamilton Fort | Rebuild
UDOT is adding a northbound climbing lane on I-15 between the Kanarraville Rest Stop and the South Cedar Interchange. This project is also improving the Hamilton Fort Interchange at Exit 51.
Overview
Upcoming Closure at Kanarraville Rest Area (Exit 44)
Sept. 14 – Sept. 23
The northbound Kanarraville Rest Area will be closed while crews widen I-15 and rebuild the on- and off-ramps. Truck parking, restrooms, and other services will be unavailable
during the closure.
The rest area is expected to reopen on Sept. 24.
To find out more about alternate truck parking locations visit the UDOT Motor Carriers Website.
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 (Exit 51) with a roundabout constructed on the east side of I-15.
Construction is expected to require two construction seasons, beginning in Spring 2025 and ending in October 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.
Progress at Exit 51
At the Hamilton Fort Interchange (Exit 51), crews are nearing completion of the new bridge and have started excavation work for the new roundabout.
They have built a temporary bypass ramp to allow traffic to access northbound I-15. The image below shows an aerial view of the newly paved bypass. The image was taken on August 27, 2026.
Schedule
Work Hours: 6 a.m. - 5 p.m.
Work Days: Monday through Friday
There may be intermittent one-lane closures on I-15 during nighttime work hours of 7 p.m.- 7 a.m.
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.